Touch Keypad

The 4*4 matrix keypad is basic key board touch sensor used for microcontroller projects. It is easy to connect and use. It has 2 wire serial output interface with auto calibration for change in environment. It can independently handle the 16 touch pads with 16 direct output pins. The Outputs can be set to CMOS/OD/OC with active high/low feature.

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Basic Electronics Components

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Capacitive Touch Buttons	16 ttp229 IC
Operating Voltage	2.4V~5.5V
Operating Current	3V No Load
Current	Typical 2.5uA
Modes	16 Key
Touch Sensor	Yes
Size	49.3 x 64.5 mm
Colour	Blue