# IMC Arduino Firmware

ESP32 firmware for the IMC, based on Arduino and the `ESP32-Ethernet-Kit_A_V1.2`.

This project depends on [`Arduino_SNMP`](https://github.com/patricklaf/SNMP).


### Quirks

Despite communication being over Ethernet, the project makes use of the ESP32 Wifi stack, hence some
references to Wifi here and there (eg. `WiFiUdp`).


### Installation
Either use the Arduino IDE and use its library manager to find the SNMP library, or use `arduino-cli`:  

```bash
# Download arduino-cli
wget https://downloads.arduino.cc/arduino-cli/arduino-cli_latest_Linux_64bit.tar.gz

# Extract the downloaded archive
tar -xzf arduino-cli_latest_Linux_64bit.tar.gz


# Verify installation
arduino-cli config init
```

Then set up the required environment. Edit `~/.arduino15/arduino-cli.yaml` and add the following:

```bash
board_manager:
    additional_urls:
      - https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
      - http://arduino.esp8266.com/stable/package_esp8266com_index.json
```

Update the arduino index with:

```bash
arduino-cli core update-index
```

The required libraries are:

    arduino-cli lib install ethernet
    arduino-cli lib install SNMP


The project can be compiled so:

    arduino-cli compile --fqbn esp32:esp32:esp32wroverkit icbm.ino -v

And uploaded so:

    arduino-cli upload -p /dev/ttyUSB1 --fqbn esp32:esp32:esp32wroverkit .