· 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
Features:
· 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
Specification:
Item | Min | Typical | Max | Unit |
Power supply voltage VCC | 2.0 | 3 | 5.5 | V |
Output high VOH | - | 0.8VCC | - | V |
Output low VOL | - | - | 0.3VCC | V |
Output Pin Sink Current (@ VCC = 3V, VOL = 0.6V) | - | 8 | - | mA |
Output pin pull-up current (@ VCC = 3V, VOH = 2.4V) | - | 4 | - | mA |
Response time (low power mode) | - | - | 220 | mS |
Response time (touch mode) | - | - | 60 | mS |
Size | 24x24x7.2 | 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 ;
