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标题: 键控Led灯 [打印本页]
作者: ycf    时间: 2015-12-25 17:05
标题: 键控Led灯
  1. #define PIN_LED 16
  2. #define KEY_FLASH 0

  4. void setup() {
  5.   pinMode(PIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
  6.   pinMode(KEY_FLASH, INPUT);
  7.   digitalWrite(PIN_LED,LOW);//点亮LED灯
  8. }

  10. // the loop function runs over and over again forever
  11. void loop() {
  12.   /*
  13.   digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
  14.                                     // but actually the LED is on; this is because
  15.                                     // it is acive low on the ESP-01)
  16.   delay(1000);                      // Wait for a second
  17.   digitalWrite(BUILTIN_LED, HIGH);  // Turn the LED off by making the voltage HIGH
  18.   delay(2000);                      // Wait for two seconds (to demonstrate the active low LED)
  19.   */
  20.   if(digitalRead(KEY_FLASH)==0)
  21.   digitalWrite(PIN_LED,HIGH);
  22.   else
  23.   digitalWrite(PIN_LED,LOW);
  24.   
  25. }
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