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Seeedstudio Push Button Tutorial
Introduction
The purpose of this tutorial is to use the push button sensor included in the kit. This tutorial is built upon the previous tutorial . We simply connected the sensor to the shield and made note of the pin we used for the button. Take note that the push button uses the digital ports and not the analog ports.
Overview
For this tutorial we used the Seeedstudio Electronic Brick Starter kit which includes various sensors, components, cables and a shield to help get you started with various Seeedstudio Arduino compatible microcontrollers.
Meat and Potatoes
We like to get straight to the point. Below you will find the same code used to work with the push button. Take into account that this is a basic code example. We do not get into the all the details of how or why you would use a push button. Merely, how to code for it.
Sample Code
#include
LiquidCrystal lcd( 10, 11, 12, 13, 14, 15, 16 );
int buttonPin = 8;
int val = 0;
void setup()
{
Serial.begin( 9600 );
lcd.begin( 16, 2 );
lcd.clear();
pinMode( buttonPin, INPUT );
}
void loop()
{
lcd.setCursor( 0, 0 );
val = digitalRead( buttonPin );
if( val == HIGH ) lcd.println( "button pressed " );
else if( val == LOW ) lcd.println( "nothing pressed " );
else lcd.println( "unknown state" );
lcd.println( val );
delay( 1000 );
lcd.clear();
}
Where to buy?
DIYbin.com
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