This sketch demonstrates how to use the Grove touch sensor. The touch sensor is a digital device (i.e. it can be "on" or "off" only).

03.30_-_Grove_touch_sensor.ino

/*  03.030 - Grove touch sensor

   This sketch demonstrates how to use the Grove touch sensor.

   The touch sensor is a digital device (i.e. it can be "on" or "off" only).


   Components
   ----------

    - Grove Base Shield
    - An Arduino Uno compatible board (such as Arduino/Genuino Uno or Seeeduino)
    - Grove Touch Sensor
    - One Grove cable

    IDE
    ---

    Arduino IDE

    Libraries
    ---------

    -

    Connections
    -----------

    Use a Grove cable to connect the temperature module to Base Shield connector D2.

    Other information
    -----------------

    - Use this sketch along side the video lecture 03.030 of Grove For Busy People
    - Original example sketch location: http://wiki.seeedstudio.com/Grove-Touch_Sensor/
    - Grove component: https://txplo.re/63d60

    Github Gist
    -----------
    <script src="https://gist.github.com/futureshocked/01d7c6dbb27a61e2fc08d83f316720f7.js"></script>

    https://gist.github.com/futureshocked/01d7c6dbb27a61e2fc08d83f316720f7

    For course information, please go to https://techexplorations.com/product/grove-for-busy-people/

    Created on July 5 2019 by Peter Dalmaris
*/

const int touchPin = 4; // digital pin 4 is on Grove connector D4
const int ledPin = 13; // the number of the build-in LED pin

void setup() {
  pinMode(touchPin, INPUT);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int sensorValue = digitalRead(touchPin);

  if (sensorValue == HIGH)
  {
    digitalWrite(ledPin, HIGH);
  }
  else
  {
    digitalWrite(ledPin, LOW);
  }
}