IoT device that can monitor cattle biodigester powered with Arduino Nano and NodeMCU ESP8266. I used Arduino to collect data from all sensors and send it to NodeMCU via UART communication. The NodeMCU will store the datas to the server. Website mockup scatterid
I used 3 types of MQ sensor: MQ-4, MQ-135 and MQ-8. For those sensors I used MQSensorsLib library from Miguel A. Califa
I used BME280 Sensor library from Adafruit and also Adafruit Common Sensor
