TTP223B digital sensor for Arduino
Features:
- Type: capacitive touch sensor;
- module is assembled on a chip TTP223B;
- The sensor works on a capacitive technology;
- LED indication of power;
- the power supply module: 2 - 5.5;
- Sensitivity: 0 - 50 pF;
- response time (low power mode): 220 ms;
- response time (active): 60 ms;
- Dimensions (L x W x H): 24 x 24 mm 7.5;
- Weight: 3 g
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Work TTP223B digital sensor for Arduino based on electrical capacitance of the human body. Triggering module switching occurs at the touch of a finger on the touch sensor. At rest, - the output of the module a low voltage level when the sensor is touched - there is a high voltage level. After 12 seconds of inactivity, the module goes into low power mode.
In order to use digital sensor you must first install it into place. Then you need to connect the appropriate terminals of the module powered by Arduino-controller (or other microprocessor-based control device).
For convenience, the board has an LED that lights when the unit is powered on. On the module has four holes for mounting on a flat surface.
TTP223B digital sensor for Arduino has one 3-pin connector. Designation of contacts:
- SIG (digital output);
- VCC (power supply);
- GND (common contact).
The device is powered on or Arduino controller, microprocessor control another device, or from an external power source (battery power supply). Supply voltage module 2 - 5.5 V.
TTP223B digital sensor for Arduino is used for electrical switching (on / off) and is an excellent replacement for traditional mechanical buttons (keys). Is more reliable because there are no moving parts and low power consumption.
Sensor TTP223B can be used as a button for start / stop equipment. In addition, it can be used in transport as a button to open the door.
TTP223B digital sensor for Arduino - An alternate name: capacitive touch sensor (touch) touch button.