This keypad features Onboard 8 capacitive touchkeys and 1 linear capacitive touch sensor.It is based on TONTEK TonTouch touch pad detector IC TTP229-LSF, supports up to 16 keys with adjustable sensitivity and 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-kye feature
Sampling rate and sampling length at sleep mode
Maximum key-on time
