Introduction: COVID-19 Visitor Counter
This is a device that counts the number of people that come in or out of your door. It can beep if more than ____ people come in your door, since we need to keep occupancy low.
Step 1: Wiring
The diagram and simulation is here at Tinkercad.
The code has wiring comments too.
Step 2: Code
Upload it to your Arduino. If it doesn't work, then check your wiring. If the wiring is correct, then comment me.
Step 3: Finish
Congratulations! You are finished.
If it doesn't work as expected, then comment me. Stay safe from COVID-19!
Merry Making at Home,