Circuits / Microcontrollers
Arduino UNO: a button lights an LED
A pin as an input with the internal pull-up: it reads LOW while S1 is pressed, and the program decides the LED
Tap a part to see its voltages and currents. It is a model, not a measurement.
Parts
- Development board Arduino UNOSearch on Amazon
- Push buttonSearch on Amazon
- Resistor 220 ΩSearch on Amazon
- Green LEDSearch on Amazon
- Jumper wires × 4Search on Amazon
- BreadboardSearch on Amazon
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