Twenty Piece Capacitive Touch Switch Modules TTP223 2.5 To 5.5V Self Lock Or No Lock For Arduino Maker Friendly Touch Button Sensor 15 By 11 Millimeters Plug And Play DIY Projects

Capacitive Touch Switch Modules, 20-Pack for Arduino
✔️ 20x TTP223 capacitive touch switches, 2.5-5.5V, 15x11mm

These 20-piece plug-and-play touch switch modules use the TTP223 IC to detect finger touch and switch a TTL output. They’re handy for compact Arduino projects, DIY gadgets, and hidden control panels on plastic or glass surfaces.

✅ Power: 2.5-5.5V
✅ Trigger setting AB=00/01/10/11 for No-Lock/Self-Lock modes
✅ Size: 15mm x 11mm (0.59" x 0.43"), weight ~8g
✅ Package: 20x capacitive touch switch modules
✅ Mounting: non-metallic surfaces such as plastic or glass

💡 What is a capacitive touch switch module and how does the TTP223 sensor work in output modes? The TTP223 uses capacitive sensing to detect finger touch and outputs TTL level signals; AB pins select between self-lock and momentary modes. - Capacitive sensing detects finger touch by changes in body capacitance - AB pins select output mode: 00/01/10/11 for no-lock or self-lock - Works on 2.5-5.5V and is compatible with Arduino and other microcontrollers