TTP223 - 1 Channel Capacitive Touch Sensor Module Blue Color

1. Input Voltage: 2 Volt-5.5 Volts DC. 
2. The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V. 
3. Sensitivity can adjust by the capacitance(0~50pF). 
4. Stable touching detection of the human body for replacing traditional direct switch key. 
5. Provides direct mode toggle mode by pad option (TOG pin). 
6. After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabled. 
7. Auto calibration and Re-calibration period is about 4.0 sec when the key has not be touched.