Raspberry Pi Touch Keypad

The touch keypad supports all revisions of the Raspberry Pi board.

It has 16 capacitive keys.
It has a TTP229LSF touch controller that supports up to 16 keys with adjustable sensitivity
the system automatically recalibrates every 4 seconds.

Specifications:

• interfaces: I2C
• number of keys: 16
• acquisition speed: 8 Hz
• insulation: 6 kV
• operating voltage: 2.4 to 5.5 V
• operating temperature: -40 ° to plus 85 ° centigrade
• dimension: 8.5 cm x 5.6 cm

How to use it:

You have the documentation and source codes to use the keypad via this link on the manufacturer's site.

Connectors used:

• VCC
• GND
• SDA: I2C SDA
• SCL: I2C SCL
•  

Dimensions: