The TTP223B Touch Detection Sensor Module detects a single finger touch by measuring capacitance change and outputs on the SIG pin. The capacitive touch sensor module runs on 2V to 5.5V at 4mA current and responds in 220ms, making it a practical physical button replacement.
The touch sensor arduino builds use just three SIG VCC GND wires. A non-obvious detail is that the TTP223B output stays high for as long as your finger stays on the pad. If project needs a pulse per touch, detect the rising edge in code using state tracking in loop.
Students and UI builders use the ttp223b touch sensor with Arduino IDE and MicroPython on a single GPIO. StemVolt provides this sensor with trusted quality, ensuring reliable performance.
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Features:
- Response time of 220ms picks up touch input fast enough for button replacement use
- Three-pin interface connects directly to breadboard without extra components
- TTP223B model type provides a stable single-channel capacitive output on every touch
Technical specifications:
| Specification | Details |
|---|---|
| Model Type | TTP223B Touch Sensor |
| Operating Voltage | 2V to 5.5V |
| Operating Current | 4 mA |
| Response Time | 220mS |
| PINs | SIG, VCC, GND |
Applications:
- Desk lamp touch switch uses TTP223B Touch Detection Sensor Module to toggle relay on finger contact
- Battery-powered name badge activates an LED display when user touches the capacitive pad
- Capacitive doorbell button uses touch sensor arduino setup to trigger chime on single touch
Package includes:
- 1 x TTP223B Touch Detection Sensor Module
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