Hello !

Today I will show you how to make a capacitive sensor with Arduino UNO.

You will need:

• 1 x Arduino board
  
• 1 x 1M resistor
  
• 1 x Touch plate
  
• 1x Breadboard
  
• 1 x LED
  
• 2 x Jumpers

First plug in the resistor in pin 4 and pin 8 of the Arduino, then connect the touch plate with pin 8 of the Arduino.

Now plug in the LED to the breadboard, connect LED’s “-” to Arduino’s GND and “+” to pin 7.

Connect your Arduino to a computer and upload the sketch which you can get from here.

You will also need this library.

You are done, touch the plate and the LED shoud light up. You can modify the sketch and for other “capacitive” needs.

Arduino Capacitive Sensor In less Than 2 Minutes