Interfacing an LED, a buzzer and TTP223 Capacitive Touch Sensor with Arduino Uno
Components Required: 1. Arduino Uno Board 2. TTP223 Capacitive Touch Sensor 3. LED or Buzzer 4. Breadboard 5. Connecting Wires Do the connection as follows: Sig Pin of TTP223 Capacitive Touch Sensor - Arduino Digital Pin D7 Vcc Pin of TTP223 Capacitive Touch Sensor - Arduino 5V GND Pin of TTP223 Capacitive Touch Sensor- Arduino GND LED positive pin - Arduino Digial Pin D13 LED negative pin - Arduino Ground Pin Source Code: #define ctsPin 7 // Pin for capactitive touch sensor int ledPin = 13; // pin for the LED void setup() { Serial.begin(9600); pinMode(ledPin, OUTPUT); pinMode(ctsPin, INPUT); } void loop() { int ctsValue = digitalRead(ctsPin); if (ctsValue == HIGH){ digitalWrite(ledPin, HIGH); Serial.println("TOUCHED"); } else{ digitalWrite(ledPin,LOW); ...