This system is a robust manner of monitoring the transformer's health using several factors such as temperature, humidity, oil-level and current load.
Temp.measured in my garden. Mean of 3 sensors. DIY solar powered NodeMCU.
Printing temperature from Arduino board to think speak.
Updates every 5 minutes! Started on 26/2/2023 Made by Nikos Efstratiou in Mytilene,Lesvos,Greece
ESP32 Air Temperature/Humidity/Pressure using BME280 Sensor