Raspberry Pi Case with Ultrasonic Sensor and 16x2 LCD Screen

thingiverse

Full Tutorial posted here - https://www.tomshardware.com/how-to/raspberry-pi-hand-washing-timer Due to the global pandemic, I’ve seen both useful and funny COVID-19 hacks everywhere. I thought I would make my own COVID life hack with a hand washing timer that is motion triggered and plays a 20-second music clip. Why 20 seconds? Health officials are recommending that we wash our hands often and for at least 20 seconds each time. When I reach for my soap, I trigger this hand washing timer to play a music clip and the display will countdown for 20-seconds. Remix Notes: I added a lid with a cut-out to accommodate the ultrasonic sensor wires. This is the design for my handwashing timer which plays a 20-second music clip when the ultrasonic sensor is triggered.