Watt meter based on an arduino and a INA219 module. The capability of the INA219 is as follows:
- Senses Bus Voltages from 0 to 26 V
- Supports up to ±3.2A current measurement, with ±0.8mA resolution
Working Principle
- Connect the module to the power source and the load.
- Power the arduino via the usb port.
- Read the output on the OLED screen.
Components:
- Arduino Nano
- INA219
- OLED 128x64 I2C (The pinout of the module I used has the pinout labels difference than what is shown on the schematic diagram. Strict to the wiring on the schematic.)
