Regulated 5VDC is required to power up the finished module. The red LED in the circuit indicates the presence of the input supply. The nominal output voltage is 2.5VDC at zero current. When DC load ...

The INA219 chip at the core of the dc current sensor module is a current shunt and power monitor with an I 2 C or SMBUS compatible interface. It features 16 programmable addresses. The chip uses a ...