fdivitto / sbus Goto Github PK

i tried compile source but error on att85. i have not skill debug code. Please help me a version SBUS decoder to pwm on attiny85 ?
thanks

i have tried the following example
#include <sbus.h>
// used pins
#define SBUS_PIN 13 // D3
SBUS sbus;
void setup() {
Serial.begin(115200);
sbus.begin(SBUS_PIN, sbusBlocking);
}

void loop() {

if (!sbus.waitFrame()) {
Serial.println("Timeout!");
} else {
Serial.println(sbus.getChannel(3));
}
if (sbus.signalLossActive())
Serial.print("SIGNAL_LOSS ");
if (sbus.failsafeActive())
Serial.print("FAILSAFE");
}

and the values i get back looks like this, why i have such big fluctuations, i have done nothing on the sender, can you help me.

1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
917
1500
1500
1500
1500
1500
1500
1500
1500
917
1500
1500
1500
1500
1500
957

thanks for your watching
recently I use this library. I find that the time of read a sbus frame is not stable. sometimes it cost 40ms.I use nonblocking model.the waitFrame function cost too much time and unstable.
how could I promete the reading speed and at the same time make the sbus frame more stable?

timer_1 = micros();
if (!sbus.waitFrame())
{
Serial.println("time out! ");
}
else
{

getChannelSignal();
processSignal(receiver_input_channel[4], n);
n++;
if (n > (USED_NUM - 1))n -= USED_NUM;
//printChannelSignal();
checkSBUS();
generate_pwm();

}
timer_2 = micros();
Serial.println(timer_2 - timer_1);

the output
19744
19756
19752
19756
42664
34736
19756
35492
55616
19752
19748
19756
23476

/Arduino/libraries/sbus/sbus.cpp:259:16: error: invalid conversion from 'volatile uint8_t* {aka volatile unsigned char*}' to 'uint8_t* {aka unsigned char*}' [-fpermissive]
s_pin = pinOfPin(pin);
^
exit status 1

Arduino IDE 1.8.5

Can I use this library on Teensy?

it seems that i cant compile for Leonardo/Micro based on 32u4.

i get errors:

C:\...\libraries\sbus-master\sbus.cpp:104:5: error: 'TCNT2' was not declared in this scope

     TCNT2 = 0;

     ^

C:\...\libraries\sbus-master\sbus.cpp:112:5: error: 'TIFR2' was not declared in this scope

     TIFR2 |= 1 << OCF2A;

     ^

C:\...\libraries\sbus-master\sbus.cpp:112:19: error: 'OCF2A' was not declared in this scope

     TIFR2 |= 1 << OCF2A;

                   ^

After some research it seems that there is no timer 2 on the 32u4.

Is it possible to move this to another timer?
If so which pins would we need to be used?