Hi @beegee-tokyo

I am trying to test this library with the Arduino Core Mbed and Arduino Nano 33 BLE but I have the next errors

Undefined functions

Arduino/libraries/SX126x-Arduino/src/boards/sx126x/sx126x-board.cpp:165: undefined reference to `BoardDisableIrq'
/Arduino/libraries/SX126x-Arduino/src/boards/sx126x/sx126x-board.cpp:178: undefined reference to `BoardEnableIrq'

and SPI undefined

can you help me?

Thanks

I see you added ESP32 sleep examples, though ESP32 is not really designed for good sleep current measurements, is there any sleep examples for the nRF52832 and any current measurements done?

Thanks!

ESP32-C3 is a cost-effective, RISC-V-based MCU with Wi-Fi and Bluetooth 5 (LE) connectivity for secure IoT applications. The ESP32-C3 is a chip recently released by Espressif

When I run the following code, only the logs in the setup() and loop() methods have any output. The logs in other methods such as OnRxTimeout() have no output. I tried two C3 development boards and two LLCC68 modules.Can you help me see what's wrong?

#include <Arduino.h>

#include <SX126x-Arduino.h>
#include <SPI.h>

hw_config hwConfig;

// ESP32 - SX126x pin configuration
int PIN_LORA_RESET = 2;  // LORA RESET
int PIN_LORA_DIO_1 = 3; // LORA DIO_1
int PIN_LORA_BUSY = 18;  // LORA SPI BUSY
int PIN_LORA_NSS = SS;	// LORA SPI CS
int PIN_LORA_SCLK = SCK;  // LORA SPI CLK
int PIN_LORA_MISO = MISO;  // LORA SPI MISO
int PIN_LORA_MOSI = MOSI;  // LORA SPI MOSI
int RADIO_TXEN = -1;	 // LORA ANTENNA TX ENABLE
int RADIO_RXEN = -1;	 // LORA ANTENNA RX ENABLE


// Function declarations
void OnTxDone(void);
void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr);
void OnTxTimeout(void);
void OnRxTimeout(void);
void OnRxError(void);
void OnCadDone(bool cadResult);

// Check if the board has an LED port defined

#define LED_BUILTIN 2

// Define LoRa parameters
#define RF_FREQUENCY 868000000  // Hz
#define TX_OUTPUT_POWER 22		// dBm
#define LORA_BANDWIDTH 0		// [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]//比特率LLCC68 越小越慢越远
#define LORA_SPREADING_FACTOR 9 // [SF7..SF12]//扩频因子LLCC68 SF5..SF9 越大越慢越远
#define LORA_CODINGRATE 1		// [1: 4/5, 2: 4/6,  3: 4/7,  4: 4/8]//编码率 越大冗余越多，越慢，越远
#define LORA_PREAMBLE_LENGTH 8  // Same for Tx and Rx //前导码，用于睡眠唤醒
#define LORA_SYMBOL_TIMEOUT 0   // Symbols
#define LORA_FIX_LENGTH_PAYLOAD_ON false
#define LORA_IQ_INVERSION_ON false
#define RX_TIMEOUT_VALUE 3000
#define TX_TIMEOUT_VALUE 3000

#define BUFFER_SIZE 64 // Define the payload size here

static RadioEvents_t RadioEvents;
static uint16_t BufferSize = BUFFER_SIZE;
static uint8_t RcvBuffer[BUFFER_SIZE];
static uint8_t TxdBuffer[BUFFER_SIZE];
static bool isMaster = true;
const uint8_t PingMsg[] = "PING";
const uint8_t PongMsg[] = "PONG";

time_t timeToSend;

time_t cadTime;

uint8_t pingCnt = 0;
uint8_t pongCnt = 0;

void setup()
{
	pinMode(LED_BUILTIN, OUTPUT);
	digitalWrite(LED_BUILTIN, LOW);

	// Define the HW configuration between MCU and SX126x
	hwConfig.CHIP_TYPE = SX1262_CHIP;		  // Example uses an eByte E22 module with an SX1262
	hwConfig.PIN_LORA_RESET = PIN_LORA_RESET; // LORA RESET
	hwConfig.PIN_LORA_NSS = PIN_LORA_NSS;	 // LORA SPI CS
	hwConfig.PIN_LORA_SCLK = PIN_LORA_SCLK;   // LORA SPI CLK
	hwConfig.PIN_LORA_MISO = PIN_LORA_MISO;   // LORA SPI MISO
	hwConfig.PIN_LORA_DIO_1 = PIN_LORA_DIO_1; // LORA DIO_1
	hwConfig.PIN_LORA_BUSY = PIN_LORA_BUSY;   // LORA SPI BUSY
	hwConfig.PIN_LORA_MOSI = PIN_LORA_MOSI;   // LORA SPI MOSI
	hwConfig.RADIO_TXEN = RADIO_TXEN;		  // LORA ANTENNA TX ENABLE
	hwConfig.RADIO_RXEN = RADIO_RXEN;		  // LORA ANTENNA RX ENABLE
	hwConfig.USE_DIO2_ANT_SWITCH = true;	  // Example uses an CircuitRocks Alora RFM1262 which uses DIO2 pins as antenna control
	hwConfig.USE_DIO3_TCXO = true;			  // Example uses an CircuitRocks Alora RFM1262 which uses DIO3 to control oscillator voltage
	hwConfig.USE_DIO3_ANT_SWITCH = false;	 // Only Insight ISP4520 module uses DIO3 as antenna control

	// Initialize Serial for debug output
	Serial.begin(115200);

	Serial.println("=====================================");
	Serial.println("SX126x PingPong test");
	Serial.println("=====================================");

	Serial.println("MCU Espressif ESP32");

	uint8_t deviceId[8];

	BoardGetUniqueId(deviceId);
	Serial.printf("BoardId: %02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X\n",
				  deviceId[7],
				  deviceId[6],
				  deviceId[5],
				  deviceId[4],
				  deviceId[3],
				  deviceId[2],
				  deviceId[1],
				  deviceId[0]);

	// Initialize the LoRa chip
	Serial.println("Starting lora_hardware_init");
	
	lora_hardware_init(hwConfig);
	
	// Initialize the Radio callbacks
	RadioEvents.TxDone = OnTxDone;
	RadioEvents.RxDone = OnRxDone;
	RadioEvents.TxTimeout = OnTxTimeout;
	RadioEvents.RxTimeout = OnRxTimeout;
	RadioEvents.RxError = OnRxError;
	RadioEvents.CadDone = OnCadDone;

	// Initialize the Radio
	Radio.Init(&RadioEvents);
	
	// Set Radio channel
	Radio.SetChannel(RF_FREQUENCY);

	// Set Radio TX configuration
	Radio.SetTxConfig(MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
					  LORA_SPREADING_FACTOR, LORA_CODINGRATE,
					  LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
					  true, 0, 0, LORA_IQ_INVERSION_ON, TX_TIMEOUT_VALUE);

	// Set Radio RX configuration
	Radio.SetRxConfig(MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
					  LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
					  LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
					  0, true, 0, 0, LORA_IQ_INVERSION_ON, true);
	//return;
	// Start LoRa
	Serial.println("Starting Radio.Rx");
	Radio.Rx(RX_TIMEOUT_VALUE);

	timeToSend = millis();
}

uint16_t mCounter =0;
void loop() {
	vTaskDelay(3000);
	Serial.print(String("loop:")+mCounter);
	mCounter++;
}

/**@brief Function to be executed on Radio Tx Done event
 */
void OnTxDone(void){
	Serial.println("OnTxDone");
	Radio.Rx(RX_TIMEOUT_VALUE);
}

void startCAD(){
	// Check if our channel is available for sending
	Radio.Standby();
	Radio.SetCadParams(LORA_CAD_08_SYMBOL, LORA_SPREADING_FACTOR + 13, 10, LORA_CAD_ONLY, 0);
	cadTime = millis();
	Radio.StartCad();
}

/**@brief Function to be executed on Radio Rx Done event
 */
void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr){
	Serial.println("OnRxDone");
	vTaskDelay(10);
	BufferSize = size;
	memcpy(RcvBuffer, payload, BufferSize);

	Serial.printf("RssiValue=%d dBm, SnrValue=%d\n", rssi, snr);

	for (int idx = 0; idx < size; idx++){
		Serial.printf("%02X ", RcvBuffer[idx]);
	}
	Serial.println("");

	digitalWrite(LED_BUILTIN, HIGH);

	if (isMaster == true) {
		if (BufferSize > 0) {
			if (strncmp((const char *)RcvBuffer, (const char *)PongMsg, 4) == 0) {
				Serial.println("Received a PONG in OnRxDone as Master");
				// Wait 500ms before sending the next package
				vTaskDelay(500);
				startCAD();
			}
			else if (strncmp((const char *)RcvBuffer, (const char *)PingMsg, 4) == 0) { 
				// A master already exists then become a slave
				Serial.println("Received a PING in OnRxDone as Master");
				isMaster = false;
				Radio.Rx(RX_TIMEOUT_VALUE);
			}
			else // valid reception but neither a PING or a PONG message
			{	// Set device as master and start again
				isMaster = true;
				Radio.Rx(RX_TIMEOUT_VALUE);
			}
		}
	}
	else {
		if (BufferSize > 0) {
			if (strncmp((const char *)RcvBuffer, (const char *)PingMsg, 4) == 0) {
				Serial.println("Received a PING in OnRxDone as Slave"); 
				startCAD();
			}
			else // valid reception but not a PING as expected
			{	// Set device as master and start again
				Serial.println("Received something in OnRxDone as Slave");
				isMaster = true;
				Radio.Rx(RX_TIMEOUT_VALUE);
			}
		}
	}
}

/**@brief Function to be executed on Radio Tx Timeout event
 */
void OnTxTimeout(void) {
	// Radio.Sleep();
	Serial.println("OnTxTimeout");
	digitalWrite(LED_BUILTIN, LOW);
	Radio.Rx(RX_TIMEOUT_VALUE);
}

/**@brief Function to be executed on Radio Rx Timeout event
 */
void OnRxTimeout(void) {
	Serial.println("OnRxTimeout");
	digitalWrite(LED_BUILTIN, LOW);

	if (isMaster == true) {
		// Wait 500ms before sending the next package
		vTaskDelay(500);
		startCAD();
	}
	else {
		// No Ping received within timeout, switch to Master
		isMaster = true;
		startCAD();
	}
}

/**@brief Function to be executed on Radio Rx Error event
 */
void OnRxError(void){
	Serial.println("OnRxError");
	digitalWrite(LED_BUILTIN, LOW);

	if (isMaster == true) {
		// Wait 500ms before sending the next package
		vTaskDelay(500); 
		startCAD();
	}
	else {
		Radio.Rx(RX_TIMEOUT_VALUE);
	}
}

/**@brief Function to be executed on Radio Rx Error event
 */
void OnCadDone(bool cadResult) {
	time_t duration = millis() - cadTime;
	if (cadResult) {
		Serial.printf("CAD returned channel busy after %ldms\n", duration);
		Radio.Rx(RX_TIMEOUT_VALUE);
	}
	else {
		Serial.printf("CAD returned channel free after %ldms\n", duration);
		if (isMaster) {
			Serial.println("Sending a PING in OnCadDone as Master");
			// Send the next PING frame
			TxdBuffer[0] = 'P';
			TxdBuffer[1] = 'I';
			TxdBuffer[2] = 'N';
			TxdBuffer[3] = 'G';
		}
		else {
			Serial.println("Sending a PONG in OnCadDone as Slave");
			// Send the reply to the PONG string
			TxdBuffer[0] = 'P';
			TxdBuffer[1] = 'O';
			TxdBuffer[2] = 'N';
			TxdBuffer[3] = 'G';
		}
		// We fill the buffer with numbers for the payload
		for (int i = 4; i < BufferSize; i++) {
			TxdBuffer[i] = i - 4;
		}
		Radio.Send(TxdBuffer, BufferSize);
	}
}

log:

[18:50:04.149]收←◆loop:808
[18:50:07.249]收←◆ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x1 (POWERON),boot:0xd (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x1428
load:0x403ce000,len:0xc04
load:0x403d0000,len:0x292c
SHA-256 comparison failed:
Calculated: 9f7363434bc7a1a2434ba3062500fa10b9fce5bb859899ee0424321b4ddaf742
Expected: 9b18b42e3e8e407f5e7b13f26c80172eda36d674c584e818f50843c766ebde69
Attempting to boot anyway...
entry 0x403ce000
I (48) boot: ESP-IDF v4.4-dev-2313-gc69f0ec32 2nd stage bootloader
I (49) boot: compile time 12:10:14
I (49) boot: chip revision: 3
I (49) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (55) qio_mode: Enabling default flash chip QIO
I (59) boot.esp32c3: SPI Speed      : 80MHz
I (63) boot.esp32c3: SPI Mode       : QIO
I (67) boot.esp32c3: SPI Flash Size : 4MB
I (71) boot: Enabling RNG early entropy source...
I (75) boot: Partition Table:
I (78) boot: ## Label            Usage          Type ST Offset   Length
I (84) boot:  0 nvs              WiFi data        01 02 00009000 00005000
I (91) boot:  1 otadata          OTA data         01 00 0000e000 00002000
I (97) boot:  2 app0             OTA app          00 10 00010000 00140000
I (104) boot:  3 app1             OTA app          00 11 00150000 00140000
I (110) boot:  4 spiffs           Unknown data     01 82 00290000 00170000
I (117) boot: End of partition table
I (120) boot_comm: chip revision: 3, min. application chip revision: 0
I (126) esp_image: segment 0: paddr=00010020 vaddr=3c030020 size=08350h ( 33616) map
I (139) esp_image: segment 1: paddr=00018378 vaddr=3fc8a800 size=014dch (  5340) load
I (142) esp_image: segment 2: paddr=0001985c vaddr=40380000 size=067bch ( 26556) load
I (153) esp_image: segment 3: paddr=00020020 vaddr=42000020 size=25570h (152944) map
I (178) esp_image: segment 4: paddr=00045598 vaddr=403867bc size=03ff4h ( 16372) load
I (181) esp_image: segment 5: paddr=00049594 vaddr=50000000 size=00010h (    16) load
I (185) boot: Loaded app from partition at offset 0x10000
I (187) boot: Disabling RNG early entropy source...
=====================================
SX126x PingPong test
=====================================
MCU Espressif ESP32
BoardId: 00-00-E8-1A-C2-A1-DF-7C
Starting lora_hardware_init

[18:50:07.527]收←◆Starting Radio.Rx

[18:50:10.524]收←◆loop:0
[18:50:13.529]收←◆loop:1
[18:50:16.534]收←◆loop:2
[18:50:19.539]收←◆loop:3
[18:50:22.544]收←◆loop:4
[18:50:25.549]收←◆loop:5
[18:50:28.553]收←◆loop:6
[18:50:31.585]收←◆loop:7
[18:50:34.563]收←◆loop:8
[18:50:37.568]收←◆loop:9
[18:50:40.574]收←◆loop:10
[18:50:43.579]收←◆loop:11
[18:50:46.584]收←◆loop:12
[18:50:49.589]收←◆loop:13
[18:50:52.594]收←◆loop:14
[18:50:55.598]收←◆loop:15
[18:50:58.604]收←◆loop:16

Hi,

Are you planning support for LoRaWAN v1.0.3?

Thanks,

Using the sleep code example provided, I am testing using a DRF1262T module and I am noticing high current draw in sleep mode. I am getting a 1.6mA draw in sleep. Is that normal? I remove the power to the RF module and get about 70uA in sleep. Still super high but I guess its the pullups being used in the code.

The DRF1262T module has a SW pin, I pull it low and I still get the same current draw.

Also, I tried your library AND radiolib, I am getting the same results.

The Pingpong sample compiles fine but when i try to compile the LoraWan example:

libraries\SX126x-Arduino-1.0.8\mac\LoRaMacHelper.cpp.o:(.literal.lmh_setSubBandChannels+0x4): undefined reference to `ChannelsDefaultMask'

libraries\SX126x-Arduino-1.0.8\mac\LoRaMacHelper.cpp.o:(.literal.lmh_setSubBandChannels+0x8): undefined reference to `ChannelsMask'

libraries\SX126x-Arduino-1.0.8\mac\LoRaMacHelper.cpp.o:(.literal.lmh_setSubBandChannels+0xc): undefined reference to `ChannelsMaskRemaining'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionGetPhyParam+0x0): undefined reference to `RegionUS915GetPhyParam'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionSetBandTxDone+0x0): undefined reference to `RegionUS915SetBandTxDone'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionInitDefaults+0x0): undefined reference to `RegionUS915InitDefaults'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionVerify+0x0): undefined reference to `RegionUS915Verify'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionApplyCFList+0x0): undefined reference to `RegionUS915ApplyCFList'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionChanMaskSet+0x0): undefined reference to `RegionUS915ChanMaskSet'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionAdrNext+0x0): undefined reference to `RegionUS915AdrNext'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionComputeRxWindowParameters+0x0): undefined reference to `RegionUS915ComputeRxWindowParameters'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionRxConfig+0x0): undefined reference to `RegionUS915RxConfig'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionTxConfig+0x0): undefined reference to `RegionUS915TxConfig'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionLinkAdrReq+0x0): undefined reference to `RegionUS915LinkAdrReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionRxParamSetupReq+0x0): undefined reference to `RegionUS915RxParamSetupReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionNewChannelReq+0x0): undefined reference to `RegionUS915NewChannelReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionTxParamSetupReq+0x0): undefined reference to `RegionUS915TxParamSetupReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionDlChannelReq+0x0): undefined reference to `RegionUS915DlChannelReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionAlternateDr+0x0): undefined reference to `RegionUS915AlternateDr'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionCalcBackOff+0x0): undefined reference to `RegionUS915CalcBackOff'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionNextChannel+0x0): undefined reference to `RegionUS915NextChannel'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionSetContinuousWave+0x0): undefined reference to `RegionUS915SetContinuousWave'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o:(.literal.RegionApplyDrOffset+0x0): undefined reference to `RegionUS915ApplyDrOffset'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionGetPhyParam':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915GetPhyParam'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionSetBandTxDone':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915SetBandTxDone'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionInitDefaults':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915InitDefaults'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionVerify':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915Verify'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionApplyCFList':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915ApplyCFList'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionChanMaskSet':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915ChanMaskSet'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionAdrNext':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915AdrNext'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionComputeRxWindowParameters':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915ComputeRxWindowParameters'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionRxConfig':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915RxConfig'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionTxConfig':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915TxConfig'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionLinkAdrReq':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915LinkAdrReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionRxParamSetupReq':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915RxParamSetupReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionNewChannelReq':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915NewChannelReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionTxParamSetupReq':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915TxParamSetupReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionDlChannelReq':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915DlChannelReq'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionAlternateDr':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915AlternateDr'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionCalcBackOff':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915CalcBackOff'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionNextChannel':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1464: undefined reference to `RegionUS915NextChannel'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionSetContinuousWave':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1478: undefined reference to `RegionUS915SetContinuousWave'

libraries\SX126x-Arduino-1.0.8\mac\region\Region.cpp.o: In function `RegionApplyDrOffset':

C:\Users\HP\Documents\Arduino\libraries\SX126x-Arduino-1.0.8\src\mac\region/Region.cpp:1499: undefined reference to `RegionUS915ApplyDrOffset'

Hi @beegee-tokyo, i have been reading your code and implementing it, good job.
I have one question, how i can send the value of a sensor, like a global variable?
The LoRa-WAN example is for create a gateway or to connect the node to a gateway?

I'm from India and I'm actually confused given the fact that there are only 3 channels configured in TTN and saw the same in docs of this library.

[Q. 1] I just want to know whether I could explicitly increase the number of channels/configure the frequencies with this library.

I want to set additional channels (config.json) to the gateway as well, but I couldn't find anything from Things Stack docs. I already tested with handpicked frequencies. Even though the packets were captured by the gateway (can be seen on the dashboard), it never got transferred to Application Nodes. Once I changed the config, the same one mentioned in Things Network's repository, application nodes on the dashboard started to receive the data.

I assume this was due to the frequency mismatch.

[Q 2] Can I set custom channels on Things Stack, which can also be received application nodes as well (So that I can receive the transmitted data)?

I just need to know whether I could do it, I'm currently running Things Stack locally.

I have been using your library, and it has been working perfectly fine.
Thank You for that.

I have a TTGO TBeamV1.1 which I have successfully programmed for low power usage. 0.82mA in deep sleep without power to or using the LoRa radio.

Once I power the LoRa radio via the AXP192 and set in into receive mode, power usage increases, as expected.
I tested the deep sleep of the ESP and it successfully woke up when receiving a message.
Next I tried using the SetRxDutyCycle method configured like the example code that can be found here, this also seems to work and the esp is woken up by the incoming message.

I have however noticed that the power usage between using Radio.Rx(0) and Radio.SetRxDutyCycle is exactly the same, 6.9mA.
I measured the current with a multimeter placed in between (series) the battery and the board.
According to the datasheet in this repo the power saving should be significant.

Am I missing something obvious? Could there be an issue or bug in the library?

#include <Arduino.h>
#include <SPI.h>
#include <rom/rtc.h>
#include <driver/rtc_io.h>
#include <SX126x-Arduino.h>
#include <WiFi.h>
#include <esp_wifi.h>
#include "axp20x.h"
#include "esp_bt.h"
#include "driver/adc.h"

AXP20X_Class PMU;

int PIN_LORA_RESET = 23;
int PIN_LORA_DIO_1 = 33;
int PIN_LORA_BUSY = 32;
int PIN_LORA_NSS = 18;
int PIN_LORA_SCLK = 5;
int PIN_LORA_MISO = 19;
int PIN_LORA_MOSI = 27;

#define RF_FREQUENCY 868000000  // Hz
#define TX_OUTPUT_POWER 17      // dBm
#define LORA_BANDWIDTH 0        // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]
#define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
#define LORA_CODINGRATE 1       // [1: 4/5, 2: 4/6,  3: 4/7,  4: 4/8]
#define LORA_PREAMBLE_LENGTH 8  // Same for Tx and Rx
#define LORA_SYMBOL_TIMEOUT 0   // Symbols
#define LORA_FIX_LENGTH_PAYLOAD_ON false
#define LORA_IQ_INVERSION_ON false
#define RX_TIMEOUT_VALUE 3000
#define TX_TIMEOUT_VALUE 3000

static RadioEvents_t RadioEvents;
hw_config hwConfig;
uint8_t cadRepeat;

void OnTxDone(void);
void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr);
void OnTxTimeout(void);
void OnRxTimeout(void);
void OnRxError(void);
void OnCadDone(bool cadResult);

uint8_t deviceId[8];

const uint8_t i2c_sda = 21;
const uint8_t i2c_scl = 22;

void goToSleep(void) {
  Serial.println("Preparing to sleep!");

  Radio.Standby();
  SX126xSetDioIrqParams(IRQ_RX_DONE | IRQ_RX_TX_TIMEOUT,
                        IRQ_RX_DONE | IRQ_RX_TX_TIMEOUT,
                        IRQ_RADIO_NONE, IRQ_RADIO_NONE);
  // To get maximum power savings we use Radio.SetRxDutyCycle instead of Radio.Rx(0)
  // This function keeps the SX1261/2 chip most of the time in sleep and only wakes up short times
  // to catch incoming data packages
  Radio.SetRxDutyCycle(2 * 1024 * 1000 * 15.625, 10 * 1024 * 15.625);
  //Radio.Rx(0);
  Serial.println("Radio in low power receiver mode!");

  // Make sure the DIO1, RESET and NSS GPIOs are hold on required levels during deep sleep
  rtc_gpio_pullup_en((gpio_num_t)PIN_LORA_RESET);
  rtc_gpio_pullup_en((gpio_num_t)PIN_LORA_NSS);
  rtc_gpio_pulldown_en((gpio_num_t)PIN_LORA_DIO_1);

  esp_sleep_enable_ext1_wakeup(0x200000000, ESP_EXT1_WAKEUP_ANY_HIGH);
  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
  Serial.println("IO configured for sleep!");

  Serial.println("Going to sleep!");
  Serial.flush();
  esp_deep_sleep_start();
}

void setup() {
  setCpuFrequencyMhz(20);
  Serial.begin(115200);

  RESET_REASON cpu0WakeupReason = rtc_get_reset_reason(0);
  RESET_REASON cpu1WakeupReason = rtc_get_reset_reason(1);

  // Define the HW configuration between MCU and SX126x
  hwConfig.CHIP_TYPE = SX1262_CHIP;         // SX1261_CHIP for Semtech SX1261 SX1262_CHIP for Semtech SX1262/1268
  hwConfig.PIN_LORA_RESET = PIN_LORA_RESET; // GPIO pin connected to NRESET of the SX126x
  hwConfig.PIN_LORA_NSS = PIN_LORA_NSS;     // GPIO pin connected to NSS of the SX126x
  hwConfig.PIN_LORA_SCLK = PIN_LORA_SCLK;   // GPIO pin connected to SCK of the SX126x
  hwConfig.PIN_LORA_MISO = PIN_LORA_MISO;   // GPIO pin connected to MISO of the SX126x
  hwConfig.PIN_LORA_DIO_1 = PIN_LORA_DIO_1; // GPIO pin connected to DIO 1 of the SX126x
  hwConfig.PIN_LORA_BUSY = PIN_LORA_BUSY;   // GPIO pin connected to BUSY of the SX126x
  hwConfig.PIN_LORA_MOSI = PIN_LORA_MOSI;   // GPIO pin connected to MOSI of the SX126x
  hwConfig.RADIO_TXEN = -1;                 // GPIO pin used to enable the TX antenna of the SX126x
  hwConfig.RADIO_RXEN = -1;                 // GPIO pin used to enable the RX antenna of the SX126x
  hwConfig.USE_DIO2_ANT_SWITCH = false;     // True if DIO2 is used to switch the antenna from RX to TX
  hwConfig.USE_DIO3_TCXO = true;           // True if DIO3 is used to control the voltage of the TXCO oscillator
  hwConfig.USE_DIO3_ANT_SWITCH = false;     // True if DIO3 is used to enable/disable the antenna
  hwConfig.USE_LDO = false;                  // False if SX126x DCDC converter is used, true if SX126x LDO is used
  hwConfig.USE_RXEN_ANT_PWR = false;        // If set to true RADIO_RXEN pin is used to control power of antenna switch

  RadioEvents.TxDone = OnTxDone;
  RadioEvents.RxDone = OnRxDone;
  RadioEvents.TxTimeout = OnTxTimeout;
  RadioEvents.RxTimeout = OnRxTimeout;
  RadioEvents.RxError = OnRxError;
  RadioEvents.CadDone = OnCadDone;

  if ((cpu0WakeupReason == DEEPSLEEP_RESET) || (cpu1WakeupReason == DEEPSLEEP_RESET)) {
    lora_hardware_re_init(hwConfig);
    Radio.ReInit(&RadioEvents);
    Radio.IrqProcessAfterDeepSleep();
  } else {
    //Red onboard LED
    pinMode(4, OUTPUT);
    digitalWrite(4, LOW);

    int ret = 0;
    Wire.begin(i2c_sda, i2c_scl);
    PMU.begin(Wire, AXP192_SLAVE_ADDRESS);

    do {
      // In order to ensure that it is set correctly,
      // the loop waits for it to return the correct return value
      Serial.println("Set PMU in sleep mode");
      ret = PMU.setSleep();
      delay(500);
    } while (ret != AXP_PASS);

    //PMU.setTSmode(AXP_TS_PIN_MODE_DISABLE);
    //PMU.enableChargeing(false);
    PMU.setChgLEDMode(AXP20X_LED_OFF);
    PMU.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);
    PMU.setPowerOutPut(AXP192_DCDC2, AXP202_OFF);
    PMU.setPowerOutPut(AXP192_LDO2, AXP202_OFF);
    PMU.setPowerOutPut(AXP192_LDO3, AXP202_OFF);
    PMU.setPowerOutPut(AXP192_EXTEN, AXP202_OFF);

    PMU.setLDO2Voltage(3300);   //LoRa VDD
    PMU.setPowerOutPut(AXP192_LDO2, AXP202_ON);

    WiFi.disconnect(true);
    WiFi.mode(WIFI_OFF);
    esp_wifi_stop();
    btStop();
    esp_bt_controller_disable();
    adc_power_off();

    delay(3000);
    Serial.println("PMU init done!");

    lora_hardware_init(hwConfig);
    Radio.Init(&RadioEvents);
    Radio.SetChannel(RF_FREQUENCY);
    Radio.SetTxConfig(MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
                      LORA_SPREADING_FACTOR, LORA_CODINGRATE,
                      LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
                      false, 0, 0, LORA_IQ_INVERSION_ON, TX_TIMEOUT_VALUE);
    Radio.SetRxConfig(MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
                      LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
                      LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
                      0, false, 0, 0, LORA_IQ_INVERSION_ON, true);
  }
  goToSleep();
}

void loop() {
}

void OnTxDone(void) {
  goToSleep();
}

void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) {
  char debugOutput[1024];
  for (int idx = 0; idx < size; idx++) {
    sprintf(&debugOutput[(idx * 2)], "%02X", payload[idx]);
  }
  Serial.print("Data: ");
  Serial.println(debugOutput);

  // Now its up to YOU to do something with the data

  goToSleep();
}

void OnTxTimeout(void) {
  goToSleep();
}

void OnRxTimeout(void) {
  goToSleep();
}

void OnRxError(void) {
  goToSleep();
}

void OnCadDone(bool cadResult) {
  cadRepeat++;
  Radio.Standby();
  if (cadResult) {
    if (cadRepeat < 6) {
      Radio.Standby();
      SX126xSetCadParams(LORA_CAD_08_SYMBOL, LORA_SPREADING_FACTOR + 13, 10, LORA_CAD_ONLY, 0);
      SX126xSetDioIrqParams(IRQ_CAD_DONE | IRQ_CAD_ACTIVITY_DETECTED,
                            IRQ_CAD_DONE | IRQ_CAD_ACTIVITY_DETECTED,
                            IRQ_RADIO_NONE, IRQ_RADIO_NONE);
      Radio.StartCad();
    } else {
      goToSleep();
    }
  }
}```

Hi All ,

First of All thank you for SX1262-Arduino library . I am facing an issue while using this library , i need your help in this regard .
i have followed the following steps to test the SX1262-Arduino library .

1)i have connected the Gateway(RPI+RHF0M301) with loriot server .
2)Node which i use to connect with gateway was "Semtech SX1262MB2xAs" and controller Stm32Nucleo board.
3)You can see the data sent from the node to loriot server .

4)After that, i changed the node device controller to "ESP32" and kept the Lora device same "Semtech SX1262MB2xAs" as mentioned above in point #2 .

5)Connections i have made are according to the mentioned in the library. These are total 7 connections and 2 more connections are 3.3v and Gnd.

int PIN_LORA_RESET = 4; // LORA RESET
int PIN_LORA_NSS = 5; // LORA SPI CS
int PIN_LORA_SCLK = 18; // LORA SPI CLK
int PIN_LORA_MISO = 19; // LORA SPI MISO
int PIN_LORA_DIO_1 = 21; // LORA DIO_1
int PIN_LORA_BUSY = 22; // LORA SPI BUSY
int PIN_LORA_MOSI = 23; // LORA SPI MOSI

6)Compiled the library in Arduino IDE and as well as in Visual Code Studio (PlatformIO extension).
7)Got two different results with both the IDE's

Results are as Follows

A)When compiled with PlatformIO . Following output i got on docklight terminal

B)When compiled with the Arduino IDE then

8)To solve the above issues , i have followed the instructions mentioned in this link
#1
regarding the commissioning.h file . But still the same issue

9. i also changed the LORAWAN_APPLICATION_EUI ,LORAWAN_APPLICATION_KEY and LORAWAN_DEVICE_EUI same when i was able to connect the node to gateway and then to loriot server as mentioned above from Point # 1-3 .

But Still the same issue . Can you please guide me where is the issue ? I will appreciate the help and thank you very much in advance !

Best Regards ,

From LoRaMacHelper.cpp: lmh_send() :

	if (LoRaMacQueryTxPossible(app_data->buffsize, &txInfo) != LORAMAC_STATUS_OK)
	{
		LOG_LIB("LMH", "lmh_send -> LoRaMacQueryTxPossible failed");

		// Send empty frame in order to flush MAC commands
		mcpsReq.Type = MCPS_UNCONFIRMED;
		mcpsReq.Req.Unconfirmed.fBuffer = NULL;
		mcpsReq.Req.Unconfirmed.fBufferSize = 0;
		mcpsReq.Req.Unconfirmed.Datarate = m_param.tx_data_rate;
		// cannot send
		return LMH_ERROR;
	}

This digresses from Semtech reference behavior, which would go ahead and send the empty frame to flush the MAC commands that make the frame too large to send (assuming fOpts isn't too large later on).

I believe I understand the issue here: the reference stack will return OK, so the calling code will believe it has sent the payload, while the stack will send an empty frame. The calling code has no idea.

My question: this change was intentional so calling code could see the error, attempt to send an empty frame, then send the desired payload?

As far as I understand we should be talking about Packets:
https://en.wikipedia.org/wiki/Network_packet

Not Packages:
https://dictionary.cambridge.org/dictionary/english/package

Dear Sir,
As you mention that your base library is ISP4520 module based . And you converted into Arduino Library.
Actually Sir I am interfacing nrf52832 with E22900M22s module and using ISP4520 module Library, my lora communication is working fine for both ping_pong and Tx and Rx temperature example. But when I am using Lorawan library on E22900m22s module so its continuously show this message :

app: Uplink counter : 120
app: Uplink Data rate : DR_0
app: Uplink TX power : 0
app: Uplink frequency: 868500000
app: FDS update success! FileId: 0x3E8 RecKey:0x1
app: FDS update success! FileId: 0x3E8 RecKey:0x2
app: FDS update success! FileId: 0x3E8 RecKey:0x5
app: Data stored on NVM: 224 bytes
app: MCPS-Request: MCPS_UNCONFIRMED, OK

Although when I am using your Arduino Library for LORAWAN then is working fine but I need to work on Segger Embedded Studio for this, can you please helping me out in this. How I run ISP4520 library with NRF52832 + E22900M22S on segger?
Is this possible to easily convert Arduino library to segger? Any tips?
Please also let me know what problem do you face when converting ISP4520 library to Sx126x-Arduino Library.
Thanks

Good morning @beegee-tokyo @ivankravets

First of all, congratulations!

I have some questions

-have you plan to port to STM32 ? I ask you because i have a lot of LoRa modules here and they use the STM32. Today we program it using the Semtech libraries, but with KEIL. I would like to use the ARDUINO and make a lot of blogs.
-will your lib work with 1276 ?

Have a good day!

Hello,
nice job done in this library. Still learning how all that works.
I am trying to print rssi and snr using the example "Sensor-Gateway-Deepsleep/LoRa-Gateway" data is received correctly from node but LoRa-Gateway rssi and snr =0 ?
PinPongPio example the rssi and snr it is ok.
any idea?

Hello there!
I am continuing to use your library to do some research and development. When I switch to FSK mode, I find that it is not compatible. Do you have plans to continue to improve it?

Hi, I like to use Class C support. In Class A the application works well but at the moment when I switch to Class C , the guru kicks in with the following stack. Any suggestion or any working sample code for Class I can use to debug?

PC: 0x400914f9: uxListRemove at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/list.c line 218
EXCVADDR: 0x00000004

Decoding stack results
0x400914f9: uxListRemove at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/list.c line 218
0x4009082e: xTaskRemoveFromEventList at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/tasks.c line 3092
0x4008e509: xQueueGenericSend at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c line 767
0x400ecf85: spiEndTransaction at /Users/christian/Library/Arduino15/packages/esp32/hardware/esp32/1.0.4/cores/esp32/esp32-hal-spi.c line 765
0x400eada6: SPIClass::endTransaction() at /Users/christian/Library/Arduino15/packages/esp32/hardware/esp32/1.0.4/libraries/SPI/src/SPI.cpp line 143
0x400dfecc: SX126xWakeup() at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/boards/sx126x/sx126x-board.cpp line 151
0x400e4bac: SX126xCheckDeviceReady() at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/radio/sx126x/sx126x.cpp line 128
0x400dfee3: SX126xWriteCommand(RadioCommands_t, uint8_t*, uint16_t) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/boards/sx126x/sx126x-board.cpp line 162
0x400e4ef9: SX126xSetDioIrqParams(uint16_t, uint16_t, uint16_t, uint16_t) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/radio/sx126x/sx126x.cpp line 403
0x400e4a78: RadioRx(uint32_t) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/radio/sx126x/radio.cpp line 1021
0x400e0ee6: RxWindowSetup(bool, uint32_t) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/mac/LoRaMac.cpp line 1503
0x400e0fba: OnRxWindow2TimerEvent() at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/mac/LoRaMac.cpp line 1475
0x400e1f08: LoRaMacMibSetRequestConfirm(MibRequestConfirm_t*) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/mac/LoRaMac.cpp line 2723
0x400e2f5b: lmh_class_request(DeviceClass_t) at /Users/christian/Documents/Arduino/libraries/SX126x-Arduino/src/mac/LoRaMacHelper.cpp line 1076
0x400d35a9: lorawan_has_joined_handler() at /Users/christian/Documents/Arduino/MC5/lorawan.ino line 213

According to https://www.st.com/en/microcontrollers-microprocessors/stm32wl-series.html#overview the

STM32WL microcontrollers feature a sub-GHz radio based-on Semtech SX126x

The STM32 Arduino core is adding support for this series too, and I have been able to program a blink example to my Seeed Studio LORA E5 module.
https://github.com/stm32duino/Arduino_Core_STM32

I am wondering if it would be possible, and if it is, how much effort it would be to get this library to work on the STM32WL series of microcontrollers?

Is the NRF52810 supported or only the nrf52832 ?

Hi Bernd, I hope you're fine. I try send "Helllo" over LoRaWAN wşth ESP32. But I saw serial "timeout waiting for BUSY now". I defined txen and rxen. And I send picture and LoraWAN settings. What should i change, this is the first time i saw such an error.
ADR : Disabled
Datarate : DR_2
Duty cycles : Enabled
Region : LORAMAC_REGION_EU868
LORAWAN_APP_INTERVAL 20000
LMH_UNCONFIRMED_MSG;

On the new TTNv3 console one needs to choose the MAC version as well as the Region Parameters version.

Normally I default to LoRaWAN version: MAC V1.0.2 and Regional Parameters version: PHY V1.0.2 REV B. This seems to work, but knowing the exact version implemented by this library would be better.

Hi @beegee-tokyo, have you ever try the library from MBED for sx1262 in SX126xMB2CAS board for stm32 https://os.mbed.com/components/SX126xMB2xAS/, I already try that library in my Nucleo board, and it is success to send and receive data from ttn.

My problem is when I try that library for sx1262 from ebyte using my Nucleo board, it didn't work. I try to find that problem, and I found the busy pin didn't off or the ebyte didn't wake up when the NSS pin goes low.

I try your code on my esp32, and it behaves like the datasheet says, its wake up when the NSS pin goes low the same when I try library from MBED for sx1262 in SX126xMB2CAS board for stm32.

Did you know anything about this problem? I know they're so much difference between your library and the MBED library but i think the main problem in LoRaMacInitialization.

Hy @beegee-tokyo, i really enjoy your discussions in radiolib issues about ebyte module.

currently, i try to develop e22-900m30s ebyte module, as far as i know, your library and radiolib can apply in the e22-900m22s module. I already implementation radiolib and your library too in my project for e22-900m30s, and its work and can transmit. The reason why i use e22-900m30s module is i want to reach 30dbm of my signal power transmit and I use this RF Power meter (like this one https://id.aliexpress.com/item/32798899747.html) as a monitor to see how high the e22-900m30s module can transmit with your library and radiolib, and the result of my measurement is just can reach 20 dBm and cannot reach little higher from that number. As far as I know, the e22-900m22s can reach 22dbm because it uses the sx1262 Lora module. do you know how to configure your library so my e22-900m30s module can reach a little higher from that number or maybe can reach 30 dBm?

i already setting the current limitation on sx1262 library and my output in my monitor just reach -3dbm, I try to make the parameter of TX_OUTPUT_POWER 30 dBm and comment some limitation power code in sx1262 library and the result keeps -5 dBm, become so much lower, did you know why this could be happening?

thanks before

Using the RAK4631-DeepSleep-LoRaWan example, I want to wake up periodically (say every 60 minutes) to send multiple LoRaWan messages.

My code looks similar to this:

      /// \todo read sensor or whatever you need to do frequently
      uint8_t dataBuffer[64];
      size_t bufferSize;
      POWER ON SENSORS();
      
      bufferSize = READ_SENSOR_A(dataBuffer);
      if(sendLoRaFrame(1, dataBuffer, bufferSize)) {
        Serial.println("LoRaWan: sent READ_SENSOR_A");
      }
      else
      {
        Serial.println("LoRaWan: packet send failed");
      }
      
      bufferSize = READ_SENSOR_B(dataBuffer);
      if(sendLoRaFrame(2, dataBuffer, bufferSize)) {
        Serial.println("LoRaWan: sent READ_SENSOR_B");
      }
      else
      {
        Serial.println("LoRaWan: packet send failed");
      }
      
      bufferSize = READ_SENSOR_C(dataBuffer);
      if(sendLoRaFrame(3, dataBuffer, bufferSize)) {
        Serial.println("LoRaWan: sent READ_SENSOR_C");
      }
      else
      {
        Serial.println("LoRaWan: packet send failed");
      }
      
      bufferSize = READ_SENSOR_D(dataBuffer);
      if(sendLoRaFrame(4, dataBuffer, bufferSize)) {
        Serial.println("LoRaWan: READ_SENSOR_D");
      }
      else
      {
        Serial.println("LoRaWan: packet send failed");
      }

The problem is that only the the first call to sendLoRaFrame is accepted. The other three calls to this function fails. This is understandable as the TX is likely still in progress, as sendLoRaFrame only enqueues the message for transmission, and does not wait for it to finish.

What would the best solution be to enqueue multiple messages for transmission?

Hi Bernd, I hope you're fine.

I am working on ESP32 Sx1262 LoRaWAN on Arduino Plartform and first of all I has tried to connect EU868 and I have successfully sent the package. Then I changed the region inside the void loop and called the lmh_init and lmh_join functions again. The region has changed, I saw on the serial screen, but normally when I called the lmh_join function, it would enter the lorawan_has_joined_handler function, but in the code, it went into the tx_lora_periodic_handler function and "Did not join network, skip sending frame"

is this normal? What should we do if we want to join another region after joining a region?

Hello Guys,
I am using NRF52832 DK with E22900M22S module, I used LORAWAN example, its work fine for initial 20 packet, but after that serial monitor show this below message:
12:15:37.870 -> LoRaMacMcpsRequest LORAMAC_STATUS_BUSY
12:15:37.917 -> lmh_send -> LoRaMacMcpsRequest failed
12:15:37.917 -> lmh_send result -1
Although multiple time I restart my node but still I received this message, someone can helping out why it happening.
I used my own GATEWAY.
Thanks

HI beegee.I am using your project, but I found that the basic pingpong communication can't be done. After modifying the pin, the direct download has no feedback, and the sending timeout always occurs when sending.Some solutions are needed.

Hi,
#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]

How can I select other bandwidths? Like if I want to use 62.5khz. How to use the 3: Reserved parameter here?

Hi Bernd,

If I add SX126x-Arduino to the lib_deps in platformio.ini, without including <SX126x-Arduino.h> to main.cpp, the compiler complains about missing the SPI.h and the Adafruit_TinyUSB.h dependencies:

This can be easily fixed by adding those dependencies to library.json:

"dependencies": [
    {
      "name": "SPI",
      "frameworks": "arduino"
    },
    {
      "name": "Adafruit TinyUSB Library",
      "frameworks": "arduino"
    }
  ]

The motivation for this change is that we may have an #ifdef wrapping #include <SX126x-Arduino.h>, but we may still wan to keep SX126x-Arduino in lib_deps.
I am happy to create a PR if you agree with those changes.

Cheers,
Robson.

DRF1262T module uses 1 pin for Antenna switching using SW pin.

I had a skype conversation with them and they said:

1. we use the PE4259 as RF switch
   SW pin is used as the power supply for the RF swith the DIO2 is internally used to swtich RX/TX
   for other modules, they might use AS179 when you need the PE4259 to work, you can set SW to high logic when you want to turn off PE4259 in order to reduce the current leak of PE4259, you can set it to logic low for SW pn

Does your library have support for an SW pin or high / low pin for RF switch? (nRF52832)

Thanks

http://www.dorji.com/docs/data/DRF1262T.pdf

Hi , @beegee-tokyo I am using your lib, and I get better results in the initial stage. However, in the function of using CAD, and the official document has always been the error of packet loss, do you have time to write a CAD routine? Thank you very much

@beegee-tokyo

Hi Again !

Thank you for your amazing support for my previous quires. I have a question , i am able to switch to class B as you told me in previous question . Have you tested class B lorawan , is it fulfilling the Class B TX and RX criteria as per the following link

https://www.rfwireless-world.com/Tutorials/LoRaWAN-classes.html

? Can you please guide me how can i test Class B ? Using which server is the best choice to start chirpstack or any other alternative ?

Thanks In advance

Hi, can you help me with the pinout of sx1262 waveshare board and an arduino nano 33 iot in order for the lorawan example to work ?
I don't know how to find the busy, nss or reset pins on the sx1262
Here is the arduino pinout : https://store.arduino.cc/arduino-nano-33-iot
And here are the shields pins :

Hello, just start to play with RAK5005-0 v1.0 and RAK 1920 ver. A , successfully upload .ino file, and transmit messages to gateway. Now i wonder what payload i need to send to the node and what port i need to use . In the repo i found this:
static void lorawan_rx_handler(lmh_app_data_t *app_data)
{
Serial.printf("LoRa Packet received on port %d, size:%d, rssi:%d, snr:%d\n",
app_data->port, app_data->buffsize, app_data->rssi, app_data->snr);

switch (app_data->port)
{
case 3:
	// Port 3 switches the class
	if (app_data->buffsize == 1)
	{
		switch (app_data->buffer[0])
		{
		case 0:
			lmh_class_request(CLASS_A);
			break;

		case 1:
			lmh_class_request(CLASS_B);
			break;

		case 2:
			lmh_class_request(CLASS_C);
			break;

		default:
			break;
		}
	}
	break;

case LORAWAN_APP_PORT:
	// YOUR_JOB: Take action on received data
	break;

default:
	break;
}

}
And my other question is , how i can compare the payload , with some value and manage some IO pin of board.
Thanks!!!

Hi @beegee-tokyo ,

According to your example and description, this repo can work on nRF52832 + SX126X, right?
If it is, i want to ask two questions please:

1. I think this repo can support nRF52840 + SX1262 surely, right?
2. What should i do if i want to run it on nRF52840 + SX1262?
   Looking forward for your reply, thank you!

hi, i'm new to arduino and try to run the sample project LoRaWan and i encountered some problems aout the compiling like:
libraries\SX126x-Arduino\mac\region\Region.cpp.o:(.literal.RegionGetPhyParam+0x0): undefined reference to `RegionEU868GetPhyParam'
i think this should be caused by the link process, but i cant find how the link is done，do you have any suggestions? thanks.
Hardware: ESP32+sx1268

I have successfully used your library to communicate 2 modules together but seem to have an issue when I try to use Ethernet at the same time.

Here is the Ethernet, ESP32 I am using:
https://www.amazon.com/Olimex-ESP32-POE-ISO-Espressif-Ethernet-Isolation/dp/B07R1ZMSG7/ref=sr_1_2?keywords=esp32+poe&qid=1572020502&sr=8-2

From what I can tell I need to use a different SPI pins, here is my configuration:

// ESP32 - SX126x pin configuration
int PIN_LORA_RESET = 5; // LORA RESET
int PIN_LORA_NSS = 15; // LORA SPI CS
int PIN_LORA_SCLK = 0; // LORA SPI CLK
int PIN_LORA_MISO = 2; // LORA SPI MISO
int PIN_LORA_DIO_1 = 32; //21; // LORA DIO_1
int PIN_LORA_BUSY = 16; //22; // LORA SPI BUSY
int PIN_LORA_MOSI = 4; // LORA SPI MOSI
int RADIO_TXEN = -1; // 26; // LORA ANTENNA TX ENABLE
int RADIO_RXEN = -1; //27; // LORA ANTENNA RX ENABLE

What I would really like to test is to remove somehow all the events / IRQ's and just check for a message coming in manually.

Side note, would be nice if this was ported to AVR also :)

Hello,
i am trying to set up an OTAA activation with LoraWAN on The-Things-Network. but with no success.
I managed to have a successfull running configuration with ABP activation. Therefore hardware configuation an code should be fine.
I tried to switch from ABP to OTAA by setting the application key and set the following definition in "Commissioning.h" of the library.
#define OVER_THE_AIR_ACTIVATION 1
Does anyone managed to run OTAA?
Thanks for your support!

I am doing an exercise on a possible use scenario of LoRaWAN: my sketch uses a library that conditionally initializes WiFi so that a configuration interface can be shown to the user. After entering the values for appEUI, deviceEUI and appKey, the LoRaWAN connection should be established, and the WiFi can then be turned off to save energy. The LoRaWAN configuration values are stored in NVRAM so that a reboot can use them immediately.

The problem I am having (using ChirpStack as networkserver and RAK7258 as gateway devices) is that, when starting from a cold boot, with the WiFi turned OFF, and correct LoRaWAN values already stored in NVRAM, the join request keeps failing over and over again, even with the gateway less than one meter from the device:

`
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: net/1/identity NOT_FOUND
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: net/1/password NOT_FOUND
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: net/2/identity NOT_FOUND
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: net/2/password NOT_FOUND
[V][Preferences.cpp:341] getUChar(): nvs_get_u8 fail: net/2/lastsel NOT_FOUND
[E][Preferences.cpp:49] begin(): nvs_open failed: NOT_FOUND
[E][Preferences.cpp:49] begin(): nvs_open failed: NOT_FOUND
INFO: WiFi inicialmente APAGADO
[I][LoRaMacHelper.cpp:734] lmh_init(): OTAA
DevEui=C8-2B-96-9D-3E-9C-00-00
DevAdd=00000000
AppEui=00-00-00-00-00-00-00-00
AppKey=E4-9C-8A-C1-CC-D0-34-9A-BF-75-0C-DA-CA-FB-2E-75
[E][sx126x-board.cpp:149] SX126xWaitOnBusy(): LORA Busy timeout waiting for BUSY low
[E][LoRaMacHelper.cpp:309] lmh_setSubBandChannels(): [LMH] Selected subband 2
[E][LoRaMacHelper.cpp:309] lmh_setSubBandChannels(): [LMH] Selected subband 2
[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 1 time(s)

[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 2 time(s)

[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 3 time(s)

ERR: OVER_THE_AIR_ACTIVATION failed! Retrying...
[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 1 time(s)

[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 2 time(s)

[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 3 time(s)

ERR: OVER_THE_AIR_ACTIVATION failed! Retrying...

`

However, if I then turn the WiFi ON (with an external button), the join request succeeds after a few retries:

`
[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 2 time(s)

[294487]INFO: YUBOX Framework toma control de WiFi...
[295528][D][WiFiGeneric.cpp:374] _eventCallback(): Event: 0 - WIFI_READY
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 14 - AP_START
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 14

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 14 - AP_START
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 14

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 1 - SCAN_DONE
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 1

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 2 - STA_START
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 2 - STA_START
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 2

[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 4 - STA_CONNECTED
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 4

[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:419] _eventCallback(): STA IP: 192.168.0.17, MASK: 255.255.255.0, GW: 192.168.0.1
[D][yubox-lorawan-SX126X.ino:92] WiFiEvent_ledStatus(): [WiFi-event] event: 7

[D][radio.cpp:1340] RadioIrqProcess(): RadioIrqProcess => IRQ_RX_TX_TIMEOUT
[D][LoRaMac.cpp:1225] OnRadioRxTimeout(): OnRadioRxTimeout
[D][LoRaMac.cpp:1315] OnMacStateCheckTimerEvent(): Join network failed 3 time(s)

ERR: OVER_THE_AIR_ACTIVATION failed! Retrying...
[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 4991 #2 6002
[D][LoRaMac.cpp:662] OnRadioTxDone(): OnRadioTxDone => TX was Join Request
[D][LoRaMac.cpp:712] OnRadioRxDone(): OnRadioRxDone
[D][LoRaMac.cpp:768] OnRadioRxDone(): OnRadioRxDone => FRAME_TYPE_JOIN_ACCEPT
OVER_THE_AIR_ACTIVATION != 0
INFO: enviando payload (10 bytes)... OK
[D][LoRaMac.cpp:610] OnRadioTxDone(): OnRadioTxDone
[D][LoRaMac.cpp:629] OnRadioTxDone(): OnRadioTxDone => RX Windows #1 991 #2 2002
[D][LoRaMac.cpp:712] OnRadioRxDone(): OnRadioRxDone
[D][LoRaMac.cpp:837] OnRadioRxDone(): OnRadioRxDone => FRAME_TYPE_DATA_(UN)CONFIRMED_DOWN
INFO: enviando payload (10 bytes)... OK

`

If I then turn off the WiFi while the device is joined to the network, the device keeps sending and receiving packets as normal.

What can I do to debug this issue?

Hello. I have this project using an Espressif ESP32 with an EBYTE E22-900T30S. I have been skimming over this library, and so far I can see that, unlike the E22-900M22S that has an SPI interface and some pins that directly enable or disable transmission and such, the E22-900T30S is controlled mainly through an UART interface to read and write data over the radio link, and two additional pins (M0 and M1) to switch between data and register-programming modes. My project involves speaking with a LoRaWAN gateway, and since I already know that the E22 does not have any internal LoRaWAN stack, I was considering the possibility of tweaking the abstraction layer to speak through the UART instead of using SPI. However, there exists the possibility that the UART interface does not expose enough of the underlying chip capabilities to actually implement LoRaWAN on top of the UART, or that it implements its own abstraction over the radio link that gets in the way of speaking to the LoRa chipset.

Can LoRaWAN, in principle, be implemented on top of the UART interface? Is it known one way or the other? If not, what should I know about capabilities exposed through the interface in order to make an informed decision?

Hi Bernd, I hope you are doing well.

I was wondering if there a reason I am not seeing for stack size of the LORA task to be 4096?:

From my tests it looks like 200 would be enough for the task to run:

Cheers,
Robson.

Hi why the BoardGetBatteryLevel in the src/boards/mcu/nrf52832 is not implemented yet?

What is the significance of BoardGetRandomSeed function?

Using the DeepSleep example I am seeing a Serial print:

16:18:30.751 -> <LM> OnRadioRxDone
16:19:25.634 -> <LM> OnRadioRxDone => FRAME_TYPE_JOIN_ACCEPT
16:19:26.197 -> <LM> OnRadioTxDone
16:19:31.178 -> <LM> OnRadioTxDone => RX Windows #1 4989 #2 5995
16:19:35.163 -> <RADIO> RadioIrqProcess => IRQ_RX_TX_TIMEOUT
16:19:35.163 -> <LM> OnRadioRxTimeout

Looking at the source for this library I see logging is enabled by default, and one can disable it by setting LIB_DEBUG to 0.

In the DeepSleep example, in main.h, I have added the following code after the MAX_SAVE define.

// Comment the next line if you want DEBUG output. But the power savings are not as good then!!!!!!!
#define MAX_SAVE

#ifdef MAX_SAVE 
#define LIB_DEBUG 0
#endif

This however does not work.

Also the compiler does not like it:

In file included from /home/jpmeijers/Izinto/Arduino Code/RAK4631-DeepSleep-LoRaWan-GX701P-new/RAK4631-DeepSleep-LoRaWan-GX701P-new.ino:24:
/tmp/arduino_build_880825/sketch/main.h:20: warning: "LIB_DEBUG" redefined
   20 | #define LIB_DEBUG 0
      | 
In file included from /home/jpmeijers/Arduino/libraries/SX126x-Arduino/src/boards/sx126x/sx126x-board.h:42,
                 from /home/jpmeijers/Arduino/libraries/SX126x-Arduino/src/boards/mcu/board.h:50,
                 from /home/jpmeijers/Arduino/libraries/SX126x-Arduino/src/LoRaWan-Arduino.h:15,
                 from /home/jpmeijers/Arduino/libraries/SX126x-Arduino/src/LoRaWan-RAK4630.h:4,
                 from /tmp/arduino_build_880825/sketch/main.h:14,
                 from /home/jpmeijers/Izinto/Arduino Code/RAK4631-DeepSleep-LoRaWan-GX701P-new/RAK4631-DeepSleep-LoRaWan-GX701P-new.ino:24:
/home/jpmeijers/Arduino/libraries/SX126x-Arduino/src/sx126x-debug.h:18: note: this is the location of the previous definition
   18 | #define LIB_DEBUG 1

Changing the code in main.h to read as follows makes the compiler warning go away, but still lets the library print to Serial:

#define MAX_SAVE

#ifdef MAX_SAVE 
#undef LIB_DEBUG
#define LIB_DEBUG 0
#endif

I guess we'll need to have a similar check and define rather in the library than in the user code. I'll test and report back.

I am utilizing ESP32_Wrover Module and E22_900M_22S (sx126x) Module. I have tried OTAA with Helium Console. I " #define OVER_THE_AIR_ACTIVATION 1" and " #define STATIC_DEVICE_EUI 1" instead of 0 in "Commissioning.h" . Also I reduced the size of payload.I am sending only "HELLO". And I have eror. I see "lmh_send_result 1" in serial

.

Hi I am working on low power application firmware on RAK4630 by making use of semaphores I am following the examples given. I am using only one semaphore for all the tasks my aim is to hold the execution until some other task got finished and returns success or failure. But I am not getting the expected output.

I have given a sample code from my work

int eventNum = 0;

/* Semaphore used by events to wake up loop task */
SemaphoreHandle_t taskEvent = NULL;

/* Timer to wakeup task frequently and send message */
SoftwareTimer taskWakeupTimer;

void periodicWakeup(TimerHandle_t unused)
{
  eventNum = 1;

  // Give the semaphore, so the loop task will wake up
  xSemaphoreGiveFromISR(taskEvent, pdFALSE);
}

void setup() {
  // Create the LoRaWan event semaphore
  taskEvent = xSemaphoreCreateBinary();

  // Initialize semaphore
  xSemaphoreGive(taskEvent);

  // Initialize timer
  taskWakeupTimer.begin(60000, periodicWakeup);
  taskWakeupTimer.start();

  // Please assume these things are properly done
  // Initialize LoRa chip.
  // Initialize LoRaWAN in OTAA mode
}

void loop() {
    switch (eventNum) {
        case 0:
              lmh_join();
              // Hold here until released from the LoRa handlers
              // <<< It should hold here until lorawan_has_joined_handler or lorawan_has_join_failed should be executed >>>
              // But its not holding here it will continue to execute 
              xSemaphoreTake(taskEvent, 10);

              eventNum = 1;
              break;

         // Other cases that don't use semaphores
         case 1:
             break;
    }

    // Sleep here till wake up by timer or other events
    if (xSemaphoreTake(taskEvent, portMAX_DELAY) == pdTRUE) 
    {
        eventNum = 1;
    }
}

/* I am providing only two handlers here please assume other handlers also present */
void lorawan_has_joined_handler(void)
{
    eventNum = 1;
     // Give the semaphore, so the loop task will continue
     xSemaphoreGiveFromISR(taskEvent, pdFALSE);
}

void lorawan_has_join_failed(void)
{
     eventNum = 1;
     // Give the semaphore, so the loop task will continue
     xSemaphoreGiveFromISR(taskEvent, pdFALSE);
}

Thank you for great library for SX126X chips. I am trying to build a PCB using above hardware. I need to have ST7789 TFT display, a MicroSD card socket and SX1262 Ebyte module in my project. I also need to use I2C for BME280 sensor & I2S bus for microphone and speaker. This is for home automation project but there is no need for Lorawan.

Do you think ESP32 can handle all these hardware devices? If So what you suggest should be the optimum pin out ?

Thanks.

Hi again @beegee-tokyo I hope you are well.
I have a questions about the class B and C of nodes in lorawan, i try to switch betwen A,B and C, but just work well the class A, for my project is will possible need the class C, do you know how can do that this class of node works correctly.

Hello Sir, why in pingpong example it is almost take more than 5 minutes to setup tx and rx.
where to reduce this initial time.
12:08:23.947 -> MCU Espressif ESP32
12:08:23.947 -> BoardId: 00-00-2C-A7-58-C4-0A-24
12:08:23.947 -> Starting lora_hardware_init
12:08:23.994 -> SyncWord = 2414
12:08:23.994 -> LoRa Task started
12:08:24.040 -> Starting Radio.Rx
Then it is start on :

12:13:11.248 -> OnRxTimeout
12:13:11.761 -> CAD returned channel free after 13ms
12:13:11.761 -> Sending a PING in OnCadDone as Master
12:13:11.898 -> OnTxDone
12:13:12.457 -> OnRxDone
12:13:12.457 -> RssiValue=-15 dBm, SnrValue=12
12:13:12.457 -> 50 4F 4E 47 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B
12:13:12.457 -> Received a PONG in OnRxDone as Master
12:13:12.967 -> CAD returned channel free after 13ms
12:13:12.967 -> Sending a PING in OnCadDone as Master

Hi,

I can't find any example/info : in LORAWAN_OTAA_ABP example, after JOINREQ_NBTRIALS the device just stop to try joining. So it tries 3 times in SF7 and just give up. Is there any way to give another shot using SF8, and if it fails, another using SF9 etc ... until SF12 (like in other Lorawan libraries like lmic).

Regards

Hi Beegee_tokyo!

Hope you are doing well!. I am having issue in understanding that how to increase the payload size .Recently , able to send the "HELLO WORLD!" only when i increase the payload size it gives me error "-1" . In another post you replied me that this error is because of increase in payload size . According to my understanding i changed the default Data rate from DR_0 to DR_1 , DR_2 , DR_3 and DR_4 but same error with no data receive at server side .

Thanks in advance .

Best Regards,