Chapter 2. Hardware Setup

2.1. LED, Button, Breadboard

Parts list

  • 1 breadboard
  • 3 LED, green, yellow, red. datasheet
  • 3 resistors, 150 Ohm
  • 1 button
  • 6 Flexjumper m/f

The LED has one pin longer than the other. This connector is the anode ("positive-side"). This pin is marked in the sketch.

circuit diagram

GPIO17: red LED
GPIO18: yellow LED
GPIO22: green LED

GPIO23: button (internal pullup needed)


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