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All prices US$ - All orders receive free delivery, worldwide - Click here to learn more
All prices US$ - All orders receive free delivery, worldwide - Touch here to learn more

TTP223 Latching/Momentary Single Channel Touch Sensor - Five Pack

$7.95
SKU 74135281

Add a nice capacitive-sensing button to your project with these Latching/Momentary Single Channel Touch Sensors from PMD Way. 

They're easy to use, simply connect between 2.5 and 5.5V DC to the Vcc/GND pins, and the output pin to a transistor base or microcontroller input, etc.

The onboard LED indicate button status so you can easily tell the status, or just have fun blinking the LED. 

This board is also useful if you're interested in making your own touch-device as you can prototype with the TTP223B IC with this unit then build the IC into your own PCB.

These boards are sold in packs of five.

Using your sensor:

PCB holes are configured for standard 0.1"/2.54mm pin spacing.

Wiring:

  • Vcc - connect to power supply of between 2.5 and 5.5V DC
  • GND - connect to GND
  • I/O - this is the output from the switch circuit, which is conned to your microcontroller/dev board's input

Switching type:

Note that there are two pairs of pads on the PCB, labeled A and B. If you short those pads in various combinations, you can change the operation of the switch. 

 Switch Operation A B
Momentary, touch HIGH blank blank
Monentary, touch LOW short blank
Latching, touch HIGH  blank short
Latching, touch LOW short short

 

Dimensions:

TTP223 Latching/Momentary Single Channel Touch Sensors in packs of five from PMD Way with free delivery worldwide