TTP223 Touch Module
🌟 TTP223 Capacitive Touch Sensor Module
Overview
A compact, low‑power capacitive touch sensor module featuring the TTP223 touch detector IC. It acts as a seamless replacement for mechanical buttons, offering a sleek touch-sensitive interface. Suitable for Arduino, ESP32, and Raspberry Pi projects.
Key Features
Power supply: 2 V – 5.5 V
On‑board LED indicator for touch feedback
Configurable modes: momentary or toggle, active‑high or active‑low (via jumpers)
No library needed — easy interface via digital input
Low power consumption (~1.5 μA standby)
Touch sensitivity is configurable via an external capacitor
Technical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage (VCC) | 2.0 – 5.5 V |
| Touch Output (OUT) | Digital HIGH pulse on touch (momentary mode) |
| Idle Current | ~1.5 μA (typ.), up to 3 μA |
| Response Time | Fast mode: <60 ms; Low power mode: ~220 ms |
| Detection Range | ~5 mm (finger touch) |
| Module Size | ~29 × 16 mm |
| Operating Temp Range | –40 °C to +85 °C |
Wiring with Arduino
VCC → 5 V
GND → GND
OUT → Digital pin (e.g., D2)
Use pinMode(2, INPUT); in your setup
A simple digitalRead(2) will tell you if the sensor is touched
✅ Resources
🎥 YouTube Tutorial: https://youtu.be/JuV29EQ96uQ?si=-7bAx78eO0REFK08