Vender Teclado Capacitivo 4x4 16 Teclas Ttp229 I2c P/ Arduino Raspberry ESP32 melhor preço

Pronta entrega BR, envios de segunda a sexta Teclado Capacitivo 16 teclas TTP229 Operating voltage:2.4V~5.5V Built-in regulator Stand-by current At 3V, and sleep mode slow sampling rate 8Hz: => Typical 2.5uA for 16 input keys => Typical 2.0uA for 8 input keys 8 Key or 16 key modes Separate outputs to 8 keys in 8 key mode 2 wires serial output interface for both 16 key and 8 key mode Outputs can be set to CMOS/OD/OC with active high/low 2 Wires serial interface can select active high or low by option Optional Multi-key or single-key Provides two kinds of sampling rate: slow sampling rate 8Hz and fast sampling rate 64Hz at sleep mode Optional maximum key-on time about 80sec Auto calibration at power up (keypad must not be touched for 0.5 seconds after power up) Auto calibration for changes in environment PINOUT 1.....VCC (2.4 - 5.5V) 2.....GND 3.....SCL (serial clock in) 4.....SDO (serial data out) 5.....OUT 1 (key 1 state) 6.....OUT 2 (key 2 state) 7.....OUT 3 (key 3 state) 8.....OUT 4 (key 4 state) 9.....OUT 5 (key 5 state) 10...OUT 6 (key 6 state) 11...OUT 7 (key 7 state) 12...OUT 8 (key 8 state)