Arduino and ESP8266 Projects

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); ...

This project was developed with the intention of replacing the traditional button key. It can be used along with a microcontroller or an arduino. When a capacitive load (such as a human hand) is in close proximity to the sense-pad or touches it, the sensor detects the change in capacitance and activates the switch. Code: #define  ctsPin 2  int ledPin = 13; 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);     Serial.println("not touched");   }   ...