With the Adafruit TPL5110 Power Timer Breakout Board, you can turn any hardware into a low-power project. The board takes care of switching on the connected hardware in an interval of 100 ms to 2 h - selectable via the potentiometer or via a connected resistor. The power timer then waits for a signal to interrupt the power supply at the right time. Simply connect "VDD" with a voltage of 3 - 5 V, the line for the power supply of your hardware to "Drive" and connect a signal line to the pin marked "Done". The delay can be adjusted using the on-board trimmer: Turning it all the way to the left gives a period of approx. 100 ms, turned all the way to the right, a period of approx. 2 h. As soon as a high level is applied to the "Done" pin, the power supply is interrupted. The current consumption.