IoT nodes firmware repository

• All firmware are created with Platformio and Arduino framework (compatible with Atmel AVR, Espressif 32)
• Almost used board : ESP32. For complex case ESP32 + i2C (one or many) Arduino Mega are used.
• Read sensors from GPIO and write to MQTT topic
• Read controller MQTT topic (=callback) action from One-green Core (https://github.com/One-Green/core-api-gateway) and write to GPIO
• IoT nodes can not take actions, all actions are ordered by One-green Core
• If communication is loss (MQTT down, Wifi connexion down ...) IoT nodes will perform Safe Mode.

GUI Based deployment

Use this project to deploy with an graphical interface : https://github.com/One-Green/iot-edge-wizard

Manual flash

Set .env file with these values

WIFI_SSID=
WIFI_PASSWORD=
MQTT_SERVER=
MQTT_PORT=
MQTT_USER=
MQTT_PASSWORD=
# use SERIAL_PRINT_ON to activate serial print
# else use any variable to deactivate
SERIAL_PRINT_VAR=SERIAL_PRINT_ON
NODE_TAG=
# water node configuration
# used to define 0-100% liquid level based on sonar distance
WATER_TANK_HEIGHT_CM=100
NUTRIENT_TANK_HEIGHT_CM=100
PH_DOWNER_TANK_HEIGHT_CM=100

Use Makefile cmd to flash