- Arduino board
- HC-SR04 ultrasonic sensor
- Connect Trig pin to pin D12 on Arduino board.
- Connect Echo pin to pin D13 on Arduino board.
This is my best life hacks ever.
songs: 1 - Universal - https://www.youtube.com/watch?v=3-fPJLhcato
2 - Sydney_s_Skyline - https://www.youtube.com/watch?v=cDsGCQDjiqE
3 - Monitors - https://www.you...
Just wanted to share this Arduino Uno parts and components schematic for curious people :)
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Just finnished my Eagle CAD PCB board.
What do you think?
How does it work? Each LED is grouped with an infrared (IR) LED and a photo-transistor. When a photo-transistors “sees” a certain wavelength of light, it is gated and turns on, allowing current to...