WAVE-117 Capacitive Touch Keypad (B)

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US$11.89
WAVE-117
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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)

 

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