You see from this little primer that measuring current and voltage with the INA219 module in combination with an Arduino Uno is easy. Now you know the basic functionality of the INA219 module, but if ...

From the looks of it, his hardware configuration is relatively simple. All it uses is a TSL261 Light-to-Voltage sensor connected to an Arduino with an Ethernet shield attached.

From the looks of it, his hardware configuration is relatively simple. All it uses is a TSL261 Light-to-Voltage sensor connected to an Arduino with an Ethernet shield attached.