T000220

TinkerKit Touch Sensor Overview The Touch Sensor is sensitive to skin contact. Output: This module normally outputs 0v, but when touched, sends 5v. When connected to an input on the Arduino using the TinkerKit Shield, you will see 0 when there is no touch, and 1023 when touched. Module Description: on the back of the module you can find a signal amplifier, a capacitor, a QT 100A single touch controller, a green LED that signals that the module is correctly powered and a yellow LED whose brightness depends on the values output by the module. Please note this device performs an auto calibration when it is turned on, so if someone is touching the switch surface when it is turned on it will not work. To reset, cycle power and make sure no one is touching it as you restart. This module is a SENSOR. The connector is an OUTPUT which must be connected to one of the INPUT connectors on the TinkerKit Shield. Datasheet: QT100A Code Example /* Analog input, analog output, serial output Reads an analog input pin a T000220 Touch Sensor connected to I0, maps the result to a range from 0 to 255 and uses the result to set the pulsewidth modulation (PWM) on a T010111 LED Module connected on O0. Also prints the results to the serial monitor. created 29 Dec. 2008 Modified 4 Sep 2010 by Tom Igoe modified 7 dec 2010 by Davide Gomba This example code is in the public domain. */ define O0 11 define O1 10 define O2 9 define O3 6 define O4 5 define O5 3 define I0 A0 define I1 A1 define I2 A2 define I3 A3 define I4 A4 define I5 A5 // These constants won t change. They re used to give names // to the pins used: const int analogInPin = I0 // Analog input pin that the Touch Sensor is attached to const int analogOutPin= O0 // Analog output pin that the LED is attached to int sensorValue = 0 // value read from the Touch Sensor int outputValue = 0 // value output to the PWM (analog out) void setup() // initialize serial communications at 9600 bps: Serial.begin(9600)