Here is a simple capacitive touch switch circuit for electronics hobbyists. Even though the circuit uses smd components, construction of the touch sensor switch is not very hard because the whole ...

The TTP223 is a capacitive touch button, which means it does not have moving parts like a regular button. You can activate it by just touching 🖐️ the sensing area regardless of the applied pressure.

Components Required Arduino Uno or Nano 16x2 LCD Display (with I2C module for easier wiring) Touch Sensor (e.g., TTP223) Jumper Wires Breadboard (optional) Wiring Connections LCD Display (I2C) VCC -> ...