Features 1. Onboard 8 capacitive touchkeys and 1 linear capacitive touch sensor 2. Features TONTEK TonTouch touch pad detector IC TTP229-LSF, supports up to 16 keys with adjustable sensitivity and built-in LDO 3. The system re-calibrates automatically when all keys are not detected touch more than about 4 seconds 4. Configurable functions: - 8 keys OR 16 keys option - 8 separate outputs OR serial output - Single-key OR multi-kye feature - Sampling rate and sampling length at sleep mode - Maximum key-on time
Specifications 1. Interface: I2C OR I/Os 2. Keys: 8/16 3. Sampling rate : 8Hz/64Hz 4. Human Body Mode: 6KV 5. Operating voltage: 2.4V-5.5V 6. Operating temperature: -40 degree C to +85 degree C 7. Storage temperature: -50 degree C to +125 degree C 8. Dimensions: 4.7CM x 6.8CM 9. Mounting holes size: 3 x 3MM
How to Use 1. After power-on have about 0.5sec stable-time. During the time do not touch the key pad, and all functions are disabled 2. 16 keys mode : short all the onboard jumpers, output via serial port, and the linear touch sensor is enabled 3. 8 keys mode : short the SLWPTM and WPSCT, open all the other jumpers, output via OUT0-OUT7