10Pcs TTP223 Capacitive Touch Key Module - Self-Locking/Non-Locking, Single Channel Touch Sensor for Arduino Integration
10Pcs TTP223 Capacitive Touch Key Module - Self-Locking/Non-Locking, Single Channel Touch Sensor for Arduino Integration
Product Parameters Operating Voltage: 2.0V–5.5V DC (Wide Range, 3.3V/5V Compatible) Output Signal: High/Low TTL Response Time: ≤60ms (Fast Mode), ≤220ms (Low Power Mode @3V) Touch Sensing Distance: Up to 5mm Sensitivity Adjustment: External Capacitor 0–50pF Power Consumption: 1.5mA (Active), 5μA (Standby Typical) Operating Temperature: -20°C to +70°C Auto-Calibration: Re- calibration every 4.0s Key Pin Functions VCC: Power Supply Positive (2.0V–5.5V DC), connect to regulated source with 0.1μF decoupling capacitor to GND . GND: Power & Signal Ground (Isolate from digital noise sources) . OUT: Digital Output Signal: Default: Low at idle, High when touched (Direct Mode) Configurable via solder jumpers: AB=00: Momentary High TTL (No-lock) AB=01: Latching High TTL (Self-lock) AB=10: Momentary Low TTL (No-lock) AB=11: Latching Low TTL (Self-lock) . FAQ Q1: First Power-On Unresponsive? A: Wait 0.5s stabilization period (post-power-on). Avoid touching during this phase . Q2: False Triggers or Inconsistent Response? A: ① Adjust sensitivity via external capacitor (0–50pF); ② Ensure no metal/EMI interference near sensor . Q3: Output Signal Stuck High/Low? A: Verify solder jumper configuration (AB pads): Desired momentary action → Set AB=00 or AB=10. Desired latching action → Set AB=01 or AB=11 . Q4: Can It Work Behind Walls? A: Yes! Mount behind plastic/glass ≤5mm thickness. Sensitivity tuning required for sealed enclosures
Product Features
- Compact & Versatile DesignMeasuring just 15x11mm, this TTP223 Touch Key Module is Suitable for projects requiring a compact yet efficient input solution. Suitable for DIY electronics, home automation, and retrofit applications, its small footprint ensures seamless integration without compromising functionality.
- Effortless Touch ControlExperience the convenience of capacitive touch technology with this module's self-locking and non-locking modes. Whether you need a toggle switch for smart lighting or a momentary touch for interactive displays, this module adapts to your needs with precision.
- Reliable PerformancePowered by a wide voltage range of 2.5-5.5V, the TTP223 ensures stable operation across various devices. The high TTL level output guarantees consistent signal transmission, making it a dependable component in any electronic project.
- User-Friendly IntegrationDesigned for simplicity, this touch switch sensor is easy to integrate into existing systems. Whether you're a hobbyist or a seasoned engineer, enjoy hassle-free installation and configuration with clear mode settings and intuitive operation.
- Enhanced CompatibilitySuitable for single-channel applications, this touch key module is compatible with a range of microcontrollers and development boards. Elevate your projects with the flexibility and reliability this module offers, from Arduino to Raspberry Pi applications.