-6%
16路 TTP229 電容式觸摸開關 數位觸摸感測器模組
原始價格：NT$80。NT$75目前價格：NT$75。 (未稅)
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16路 TTP229 電容式觸摸開關 數位觸摸感測器模組
1、板載TTP229電容式16鍵觸摸感應IC
2、板載電源指示燈
3、工作電壓：2.4V-5.5V
4、模組可以設置輸出模式、鍵輸出模式、長輸出時間和快速/低功耗選擇
5、PCB板子尺寸：49.3(mm)x64.5(mm)
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/**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 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) * Contents - Connect VCC ----- 5V GND ----- GND SCL -----> D2 SDO -----> D3 **/ #define pulse 2 #define data 3 int old = 0; void setup() { Serial.begin(9600); pinMode(pulse, OUTPUT); pinMode(data, INPUT); } void loop() { int Key = getkey(); if (Key!=0&Key!=old) { Serial.print("PUSH--->"); Serial.println(Key); } old = Key; } byte getkey(void) { byte cnt; byte num = 0; for(cnt = 1; cnt < 17; cnt++) { digitalWrite(pulse, LOW); if (digitalRead(data) == 0) num = cnt; digitalWrite(pulse, HIGH); } return num; } |
TTP229 16 Channel Digital Capacitive Switch Touch Sensor Module Compatible for Arduino
- 1. 16-key board TTP229 capacitive touch sensor IC.
- 2. Onboard power indicator.
- 3. The module can be set to output mode, the key output mode, the longest time and fast output / low power options .
- 4. Working voltage: 2.4V-5.5V.
- 5. High quality,durable and have along life.
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