TTP229 - 16 Channel Capacitive Touch Sensor Module

TTP229 - 16 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.

16 Channel Capacitive Touch Sesnor Module uses the touch-sensing IC TTP229 to sense the touch input thus making it easy to add capacitive touch input to your project. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. The module has 16 touch pads. Power the module with 2.4 ~ 5.5V DC and the touch pad is all active to sense the input.

Thus, the 16 Channel Capacitive Touch Sensor Module can be hidden in wall or other places, a perfect alternative to get rid of the conventional push-button troubles. A total of 16 pads are available on this module. The sense-pads can also be extended with a wire or almost any conductive material.

16 Channel Capacitive Touch Sensor Module Specifications:-

Onboard TTP229 capacitive touch sensor IC

Operating voltage 2.4V~5.5V.

Built-in regulator with external enable / disable option.

Operating current, @VDD=3V no load.

At low power mode typical 2.5uA.

At fast mode typical 9.0uA; @VDD=3V.

PCB Size: 49.3 x 64.5 mm

The response time about 100mS at fast mode, 200mS at low power mode 

Provides Fast mode and Low Power mode selection by pad option (LPMB pin).

Provides direct mode or toggle mode CMOS output or open drain output.

Active high or active low by pad option (TOG/OD/AHLB pin). Provides 2 output pins TPQ0D, TPQ2D that have no diode protection, active low.

Have the maximum on time 120sec / 64sec / 16sec / infinite by pad option (MOT1, MOT0 pin); After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled.

Auto calibration for life, and the re-calibration period is about 4.0sec, when key has not be touched.

Application: Wide consumer products; Button key replacement.