Capacitive touch button module for Arduino or standalone

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Capacitive touch button module, Arduino or standalone, capacitance sensor key



The module is based on a touch-sensing IC (TTP223B) capacitive touch switch module. In the normal state, the module output low, low power consumption; When a finger touches the corresponding position, the module output high, if not touched for 12 seconds, switch to low-power mode.

Jog type : the initial state is low , high touch , do not touch is low ( similar touch of a button feature )

Module can be installed in such as surface plastic, glass of non-metallic materials

In addition to the thin paper ( non-metallic ) covering the surface of the module , as long as the correct location of the touch , you can make hidden in the walls, desktops and other parts of buttons


Low power consumption

Power supply for 2 ~ 5.5V DC

Can replace the traditional touch of a button

Four M2 screws positioning holes for easy installation





Power supply voltage VCC: 2V Min, 3V Typical, 5.5V Max

Output high VOH: Typical 0.8VCC

Output low VOL : 0.3VCC Max

Output Pin Sink Current (@ VCC = 3V, VOL = 0.6V): 8mA Typical

Output pin pull-up current (@ VCC = 3V, VOH = 2.4V): 4mA Typical

Response time (low power mode): 220mS Max

Response time (touch mode): 60mS Max

Size: 24 x 24 x 7.2 mm

Touch Sensor Interface :(the last picture show)

Control Interface : A total of three pins (GND, VCC, SIG), GND to ground , VCC is the power supply , SIG digital signal output pin ;

Power Indicator : Green LED, power on the right that is shiny ;

Touch area : Similar to a fingerprint icon inside the area , you can touch the trigger finger .

Positioning holes : 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install , to achieve inter- module combination ;