Space Université Côte d'Azur Board for Education

Version 0.1, September, 2023

Author: Fabien Ferrero, Manh Thao Nguyen, Trinh Le Huy, Xuan Minh

This board was developed for education to support courses on embedded software, digital and analog electronic, telecommunication, signal processing and IoT. The terminal is based on a ESP32-C3 as a main MCU for user code. The ESP32-C3 is using AT-COMMAND to control a RAK3172 module. The RAK3172 integrate a LoRaWAN transciever and is also connected to a GNSS module and different sensors. The different features can be accessed using AT-COMMAND.

• Lithium battery charger + JST-PH 2pin connector : MCP73831
• Accelerometer sensor : KXTJ3-1057
• Temp/Humidity sensor : SHTC3
• GNSS receiver : LC76D
• Optimized sleep mode to 5uA

The board is fabricated by RFThings.

 ESP32-C3(BLE)     RAK3172 (LoRa)         
                   Module
 Rx1 (GPIO20) <----> Tx (GPIOX)          
 Tx1 (GPIO21) <----> Rx (GPIOX)          
  GPIO (D10) <----> LDO Enable RAK3172          

 

The board is using ESP32-C3 MCU for USB. You may need to install the driver to use the board: https://sparks.gogo.co.nz/ch340.html

1. Download and install the Arduino IDE (at least version v1.6.8)
2. Start the Arduino IDE
3. Go into File/Preferences Add

https://rfthings.github.io/ArduinoBoardManagerJSON/package_rfthings-esp32_index.json

as an "Additional Board Manager URL"

4. Connect your RF210 board to your USB port
5. Open the Boards Manager from the Tools -> Board menu and install "RFTHings ESP32 Boards"
6. Select ESP32 RFThings boards/RF210 from the Tools -> Board menu
7. Select the port

The schematic of the PCB is available in the Schematic section. RF210-C3

The LORA-WAN AT-COMMAND are based on the RUI3 platform provided by RAK : RUI3 AT-COMMAND

Additional custom AT-COMMAND are provided to access to the specific feature of SUCA board. ATC-COMMAND DOCUMENTATION

The RAK3172 module must be updated to support the latest features. The process to update RAK3172 can be found on this link : RF210 RAK3172 firmware

Examples are available on : Example Readme

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Maintained by Fabien Ferrero and Trinh Le Huy