LoRa Receiver

Image of the prototype

Project setup

1. Install Make (through GnuWin): https://gnuwin32.sourceforge.net/packages/make.htm

2. Install Arduino CLI: https://docs.arduino.cc/arduino-cli/installation/
   Optional: Install Arduino IDE: https://www.arduino.cc/en/software/

3. Install the esp32 platform

   • Using CLI: arduino-cli core install esp32:esp32
   • Using Arduino IDE:
     • Open Boards Manager and search for "esp32" & install it

4. Install libraries

   • Using CLI:

     arduino-cli lib install "ArduinoJson"
     arduino-cli lib install "CayenneLPP"
     

   • Using Arduino IDE:

     • Open Library Manager and search for the libraries above & install them

5. Install the LoRa library manually (because some functions are missing if installed through command line or Library Manager)

   • Download the library in ZIP from: https://github.com/sandeepmistry/arduino-LoRa
   • There are two options for installing:
     1. Extract it to C:\Users\UserName\Documents\Arduino\libraries\LoRa
     2. In Arduino IDE, go to Sketch -> Include Library -> Add .ZIP Library...

6. Build the project

   • Using CLI: make or make compile
   • Using Arduino IDE: Use the Verify button

7. Upload the project to the MCU

   • Using CLI:
     • set the correct PORT in the Makefile
     • make upload
   • Using Arduino IDE:
     • Set the board to DOIT ESP32 DEVKIT V1 and select the correct COM port
     • Use the Upload button

WiFi setup

1. Create a config.cpp file in the src directory
2. Add the following code to the config.cpp file:

#include "src/config.h"

const char *ssid = "your_wifi_ssid";
const char *password = "your_wifi_password";
const char *serverUrl = "server_url"; // e.g. "https://example.com/api"