Digital Volt-Amp-Watt Meter
Large fischertechnik models include many motors and lamps and reach high power consumption. A simple bulb lamp requires up to ~100 mA and 1 W.
This project provides a handy tool to get precise measures. It uses an INA219 as sensor and a MSP430 as MCU.
As usual, the module is cased on a 9V red box for a nice integration.
The INA219 is an I²C Voltage-Current-Power Sensor.