TinkerKit PushButton Overview The Pushbutton Module is possibly the simplest sensor available. It detects when a person or an object presses on its circular cap. Output: This module outputs 5v when the button is pressed and 0v when released. Pressing the button closes the circuit. When connected to an input on the Arduino using the TinkerKit Shield, you can expect a value of 1023 while the button is pressed and 0 when released. Module Description: This module features a 12mm pushbutton , the standard TinkerKit 3pin connector, a green LED that signals that the module is correctly powered and a yellow LED that is lit only when the button is pressed. This module is a SENSOR. The connector is an OUTPUT which must be connected to one of the INPUT connectors on the TinkerKit Shield. Code Example /* Button Turns on and off a T010111 LED Module connected to O0 (digital pin 11), when pressing a T000180 pushbutton attached to I0 (analog pin 0). created 2005 by DojoDave <http://www.0j0.org> modified 17 Jun 2009 by Tom Igoe modified 7 dec 2010 by Davide Gomba This example code is in the public domain. based on http://www.arduino.cc/en/Tutorial/Button */ #define #define #define #define #define #define #define #define #define #define #define #define O0 O1 O2 O3 O4 O5 I0 I1 I2 I3 I4 I5 11 10 9 6 5 3 A0 A1 A2 A3 A4 A5 // constants won't change. They're used here to // set pin numbers: const int buttonPin = I0; // the number of the pushbutton pin const int ledPin = O0; // the number of the LED pin // variables will change: int buttonState = 0; // variable for reading the pushbutton status void setup() { // initialize the LED pin as an output: pinMode(ledPin, OUTPUT); // initialize the pushbutton pin as an input: pinMode(buttonPin, INPUT); } void loop(){ // read the state of the pushbutton value: buttonState = digitalRead(buttonPin); // check if the pushbutton is pressed. // if it is, the buttonState is HIGH: if (buttonState == HIGH) { // turn LED on: digitalWrite(ledPin, HIGH); } else { // turn LED off: digitalWrite(ledPin, LOW); } } Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Arduino: A000002