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TTP223 Touch Key Switch Module – the compact, reliable solution for modern touch‑sensing applications. Designed for both self‑locking and no‑locking modes, this single‑channel capacitive switch offers instant response, low power consumption, and easy integration into any electronic project.
Product Overview
Whether you’re building a smart home controller, a DIY robotics kit, or an industrial touch panel, the TTP223 Touch Key Switch Module delivers precise touch detection with minimal wiring. Its small footprint (3.5 mm × 3.5 mm) and low voltage operation (3.3 V–5.5 V) make it ideal for space‑constrained designs.
Key Features
- Single‑channel capacitive touch sensor
- Self‑locking (S) and no‑locking (N) output modes
- Ultra‑low power consumption (≤ 200 µA in standby)
- Wide supply voltage range (3.3 V to 5.5 V)
- High sensitivity & fast response time (< 30 ms)
- Built‑in debounce and noise immunity
- Compact 3.5 mm × 3.5 mm package
Technical Specifications
Operating Voltage: 3.3 V – 5.5 V
Current Consumption: < 200 µA (standby), < 1 mA (active)
Output Type: Open‑drain (S) or push‑pull (N)
Response Time: < 30 ms
Package: 3.5 mm × 3.5 mm, 3‑pin
Applications
• Touch‑controlled switches and buttons
• Smart home devices (lighting, HVAC, door locks)
• Industrial touch panels and control panels
• Wearable electronics and IoT gadgets
• Educational kits and hobbyist projects
Installation & Usage
1. Connect VCC to your power supply (3.3 V–5.5 V).
2. Tie GND to the ground plane.
3. Connect the OUT pin to a microcontroller GPIO (use a pull‑up resistor for self‑locking mode).
4. Configure the desired mode via the module’s pin or software if available.
5. Test touch response by gently touching the sensor pad.
With the TTP223 Touch Key Switch Module, enjoy reliable touch sensing in a minimal form factor—perfect for next‑generation user interfaces.
Price: $ 0.41