User Manual

40
Lesson 13 Button Switch
Introduction
Most SunFounder boards already have an LED attached to pin 13 itself. So we
will use a button module and this LED to build a simple circuit and make an LED brighten.
Components
- 1 * SunFounder Uno board
- 1 * USB data cable
- 1 * Button module
- Several jumper wires
Experimental Principle
With the LED attached to pin 13, connect the button module to digital pin 8. When the button
module inducts button-pressing signals, the LED will be on. Otherwise, it will be off.
Experimental Procedures
Step 1: Build the circuit
Button Module SunFounder Uno
S ------------------------------------- Digital 8
- -------------------------------------- GND
+ --------------------------------------- 5V
Step 2: Program (Please refer to the example code in LEARN -> Get Tutorial on our website)
Step 3: Compile
Step 4: Upload the sketch to SunFounder Uno
SunFounder