From touch buttons in appliances to interactive art installations, the TTP223 capacitive touch sensor brings a sleek, modern way to detect human touch — no moving parts, just pure capacitive magic ✨👆
The TTP223 detects changes in capacitance when a finger approaches or touches its surface. That means you can build touch-activated switches that are durable, responsive, and stylish — much like the invisible buttons you tap on modern devices.
The TTP223 is widely used in:
- Touch-activated switches
- Home automation systems
- Wearable devices
- Interactive DIY projects
- Consumer electronics that rely on clean, button-less interfaces
The module offers single-key capacitive sensing with several configuration options:
- Digital output (D0) goes HIGH or LOW depending on touch status.
- Supports momentary or toggle output modes (via onboard solder pads).
- Configurable features like active HIGH/LOW, fast/slow response, and low-power mode.
This makes the TTP223 ideal for touch lamps, smart switches, hidden buttons, and all kinds of minimal, futuristic interfaces.
- ESP32 (38 Pin) – Reads the sensor output and drives the on-screen feedback.
- OLED Display – Shows live touch state information.
- TTP223 Capacitive Touch Sensor – The star of this build! A compact and reliable capacitive touch detector.
Project repository:
👉 Coming soon to PropelX Labs GitHub! 🚀
https://github.com/propelxlabs/SensorSunday_5_TTP223_Touch
Includes:
- Wiring guide ✋⚡
- ESP32 example code
- Optional OLED visualization
See the TTP223 in action this Sensor Sunday with PropelX Labs!
Bring intuitive, human-friendly touch interaction to your next project 🌟🔌
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