Open Source Social Distancing Meter

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An open source solution to social distancing that uses inexpensive parts and uncomplicated code.

jordanbrandes

1
Connect HC-SR04 to Arduino Uno
- VCC to 5V
- GND to GND
- Trig to pin 2
- Echo to pin 3
2
Connect LED to Arduino Uno
- GND to GND
- VCC to 5V
- Red = 8
- Yellow = 9
- Green = 10
3

Load Program

Do this in the Arduino IDE
4

Insert 9v Battery Clip with 2.1mm X 5.5mm Male DC Plug for Arduino
5

Snap on 9V battery
6

Insert into Lanyard Case

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