ESP32 Touch Sensor Capacitive Touch Module Project

The ESP32 Touch Sensor Capacitive Touch Module project demonstrates how to interface a capacitive touch sensor with an ESP32 microcontroller to detect touch inputs. ESP32 has built-in capacitive touch pins which make it convenient to detect touch without additional hardware.

Components Needed

Power Supply

Block Diagram

Circuit Setup

Connecting the Touch Sensor to ESP32:

Instructions

Setup:

Initialize Serial communication using

No need to set pinMode for touch pins as they are automatically configured.

Operation:

Use
Print the touch value to the Serial Monitor.

Compare the touch value against a defined threshold
Print "Touch detected!" if the touch value is below the threshold.
Print "Touch detected!" if the touch value is below the threshold.

Output:

Display the raw touch value continuously

Indicate touch detection based on the threshold.