Instructions

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Module 22: Button switch Module

1 Introduction

This is a simple button switch module, like a key switch. When you press on the key, this

module output a high level signal.

Specification:

 Color: black

 Voltage:5V DC

 3 Pins

2 pinout

Description

Output pin

Middle pin

Power (5V DC)

Ground

3. Example

Here is an example show that the color of the LED blinking. When you press the key, the

LED13 turns on. The connection as below: