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.
 
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.