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Touch Sensor Module (Ideally For Fingers)

Touch Sensor Module (Ideally For Fingers)

Regular price $0.85 AUD
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The module is based around the touch-sensing TTP223B IC, aka a capacitive touch switch module.

In the normal state, the module outputs 'low' (see below), and is in 'low power consumption' mode. When a finger touches the sensor, the module output goes high. When the touch is discontinued, the module returns to a low-power state after approximately 12 seconds.

A status LED shows the state. There is no sensitivity adjustment available in the form of a potentiometer, but you can adjust this by optionally replacing C1 with any SMD capacitor from 0 to 50pF (see datasheet).

Can easily replace a momentary switch in many applications.


  • Power Supply: 2 - 5.5 VDC (3V Typical)
  • Mounting: Four M2 Screw Holes
  • Output High: 0.8V
  • Output Low: 0.3V
  • Output Pin Sink: 8mA (VCC = 3V, VOL = 0.6V)
  • Output Pin Source: -4mA (VCC = 3V, VOH = 2.4V)
  • Response Times:
    • Low Power: 220ms
    • High Power: 60ms
  • Size: 24 x 24 x 7.2mm
  • Weight: 2g

Datasheet for equivalent IC:

Note: Exact TTP223B revision is not specified and may vary.

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