20Pcs TTP223B Digital Capacitive Touch Sensor Module Touch Switch 2 To 5.5V DC For Arduino And Raspberry Pi 11 By 10.5mm Sensing Pad Quick Tap Trigger Ideal For DIY Projects And Prototyping

20-Pack TTP223B capacitive touch sensor modules for DIY
✔️ 20pcs pack, 11x10.5mm sensing pad, 3-pin VCC/GND/SIG, 2 to 5.5V

These compact capacitive touch sensor modules use the TTP223B IC to detect touch on a 11x10.5mm sensing pad. Ideal for DIY electronics, hidden wall switches, touch lamps, or panels on non-metal surfaces. They run from 2 to 5.5V and provide a digital output to microcontrollers like Arduino or Raspberry Pi.

✅ Sensing pad size 11x10.5mm; sensing range approx 5mm
✅ Output goes high on touch; idle low
✅ 2 to 5.5V operation; recommended 3.3V or 5V
✅ 3-pin wiring: VCC, GND, SIG to MCU GPIO
✅ 4 mounting holes, 2.2mm diameter, for easy alignment
✅ Non-metal surface triggering; hidden-wall or panel use

💡 What is a capacitive touch sensor module used for in DIY projects and smart home setups?

These handy sensors turn touch into a clean digital signal that microcontrollers can act on, enabling easy, handy input control.

- easy to wire with 3 pins: VCC, GND, SIG
- works on non-metal surfaces, ideal for hidden wall switches
- compatible with Arduino and Raspberry Pi for quick prototyping
- pack of 20 for bulk projects