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The button is a digital input module, it acts like a switch of a door. When you press it, the door opens. You can do an unlimited amount of projects using a button and it's definitely one of the most important modules.



  • Momentary Button
  • Digital input module
  • Easy to use


  • Operating Voltage: 3.3V DC
  • Supply mode: Crowbits Power Module
  • Dimensions: 31.5(L)*24.5(W)*13(H) mm


1. You also need to prepare a power module, such as Crowbits-Power Supply, and an output module, such as Crowbits-LED.

2. The connection mode is shown in the figure, but the signal feet of the input module and the output module must be connected.

Crowbits-Button-Wiki 1.jpg

3. Then, turn on the power. When you press the button, the LED behind it will light up.

Crowbits-Button-Wiki 2.jpg