WAVE-117 Capacitive Touch Keypad (B)

WAVE-117 Capacitive Touch Keypad (B)

Features
Onboard 8 capacitive touchkeys and 1 linear capacitive touch sensor
Features TONTEK TonTouch touch pad detector IC TTP229-LSF, supports up to 16 keys with adjustable sensitivity
Built-in LDO
The system re-calibrates automatically when all keys are not detected touch more than about 4 seconds
Configurable functions:
8 keys OR 16 keys option
8 separate outputs OR serial output
single-key OR multi-key feature
Sampling rate and sampling length at sleep mode
Maximum key-on time

Specifications
Interface : I2C OR I/Os
Keys : 8/16
Sampling rate : 8Hz/64Hz
Operating voltage : 2.4V-5.5V
Operating temperature : -40c to +85c
Storage temperature : -50c to +125c
Dimensions : 4.7CM × 6.8CM
Mounting holes size : 3 × 3MM
How to Use
After power-on have about 0.5sec stable-time. During the time do not touch the key pad, and all functions are disabled
16 keys mode : short all the onboard jumpers, output via serial port, and the linear touch sensor is enabled
8 keys mode : short the SLWPTM and WPSCT, open all the other jumpers, output via OUT0-OUT7
Applications
Consumer Products
Mechanical Switch/Button Replacement

Dimensions


Resources:
Demo codes, schematics, datasheets, etc.
Wiki: www.waveshare.com/wiki/Capacitive_Touch_Keypad_(B)