This is a project that counts the number of people that pass and displays it in the serial monitor.

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.

Supplies:

- Arduino Uno and necessary supplies - get it here

- ProtoShield - get it here

- Jumper wires - get them here

- Ultrasonic sensor - get it here

- Piezo buzzer - get it here

- Mini breadboard - get it here

Step 1: Wiring

The code has wiring comments too.

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.

The code is here at GitHub.

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,

Tony

Tony Stark