More A3144

A project log for Shower Metronome

Minimize shower day dreaming, conserve a bit of water.

mulcmumulcmu 08/16/2015 at 00:400 Comments

Datasheet shows the minimum input voltage as 4.5V. I had planned to have a single 3.3V supply or even run right from 3V battery. Tested the sensor on the bench again tonight with 3.3V input power. Seems to work satisfactorily, the hysterisis between on and off seems to be significantly reduced.