Project33.Metal Touch Sensor Module

Description

The KY-036 Metal Touch Sensor Module is an analog/digital sensor that uses a transistor to detect changes in electrical conductivity. When the transistor is touched with a finger, the conductivity changes and the module emits a digital and analog signal.

The digital output can be used a switch that changes state when touched. The analog output can measure the intensity of the touch. The detection threshold can be regulated using the on-board potentiometer.

Compatible with popular microcontroller boards like Arduino, ESP32, ESP8266 and Raspberry.

Specification

• Operating voltage 3.3V ~ 5.5V

• Board Dimensions 15mm x 36mm

Connect

Code

int digitalPin = 7;   // KY-036 digital interface
int analogPin = A0;   // KY-036 analog interface
int ledPin = 13;      // Arduino LED pin
int digitalVal;       // digital readings
int analogVal;        // analog readings

void setup()
{
pinMode(digitalPin,INPUT);
pinMode(analogPin, INPUT);
pinMode(ledPin,OUTPUT);
Serial.begin(9600);
}

void loop()
{
// Read the digital inteface
digitalVal = digitalRead(digitalPin);

if(digitalVal == HIGH)
{
    digitalWrite(ledPin, HIGH); // Turn ON Arduino's LED
}
else
{
    digitalWrite(ledPin, LOW);  // Turn OFF Arduino's LED
}

// Read analog interface
analogVal = analogRead(analogPin);
Serial.println(analogVal);  // Print analog value to serial

delay(100);
}

Phenomenon