Digital Capacitive Touch Sensor Module (TTP223B)



  • Power supply: 2.0, 3, 5.5 V.
  • Output Voltage: 9.03 – 0.8 V
  • Response time: 60 mS
  • Output Pin Sink Current: 8 mA
  • Output pin pull-up current: 4 mA
  • Response time (low power mode) : 220 mS
  • Size : 24 x 24 x 7.2 mm

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Capacitive Touch Sensor Module uses the touch-sensing IC TTP223 to sense the touch input. The touching detection IC is designed for replacing the traditional direct button key with a diverse pad size. The module has a single touchpad, power the module with 2 ~ 5.5V DC and the touchpad is all active to sense the input.

Single Channel Capacitive Touch Sensor Module is easy to interface. It can be used along with a microcontroller or an Arduino or even without one. When a capacitive load (such as a human hand) is in close proximity to the sense-pad, the sensor detects the change in capacitance and activates the switch. Custom sense-pads can be made from nearly any conductive material and these sensors can detect touch through thin layers of non-conductive materials such as glass, plastic, fabric, or even wood.


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