int inByte = Serial.read(); // do something different depending on the character received. // The switch statement expects single number values for each case; // in this exmaple, though, you're using single quotes to tell // the controller to get the ASCII value for the character. For...
it's used for statusint myledPin=4;// my LED connected to digital pin 4int sensorValue=0;// value read from the potbool varR_LED_OnOff=0;Gizwits myGizwits;#defineKEY16#defineKEY27#defineKEY1_SHORT_PRESS1#defineKEY1_LONG_PRESS2#defineKEY2_SHORT_PRESS4#...
pinMode(ledPin, OUTPUT);digitalWrite(ledPin, LOW);Serial.begin(9600);} void loop() { // put your main code here, to run repeatedly:if (Serial.available() > 0){ char xx = Serial.read();switch (xx){ case 'a':case 'A':digitalWrite(ledPin, HIGH);flashLed = false;bre...
问如何在程序开始使用IDE的arduino uno编码后打开led却关闭EN背景:当活塞泵到达行程结束时，接近传感器就会...
switch on the decimal place LED. DP is not included in the below table* but is added in the register within the libary depending on the content being displayed.***/staticconststruct{charascii;charsegs;}MAX7219_Font[]={{'A',0b1110111},{'B',0b1111111},{'C',0b1001110},{'D',0b...
引脚D8通过电阻连接到LED正极,负极接地。 引脚D12通过电阻与蜂鸣器正极连接,负极接地。 代码部分 文末是完整的代码,将其保存为MorseCode.ino,然后打开Arduino IDE “File->Open->MorseCode.ino”,上传到Arduino。上传完成后,打开串口监视器,你将看到如下的显示内容: ...
Arduino if else code #define LED LED_BUILTINvoidsetup(void){Serial.begin(115200);Serial.println("Action of if else to demonstrate switch case");digitalWrite(LED,LOW);pinMode(LED,OUTPUT); }voidloop(void){intcommand=0;if(Serial.available()){charch=Serial.read();if(ch=='a'){command=10...
read HIGH when the switch is open, and LOW when it is closed. created 14 March 2012 by Scott Fitzgerald http://www.arduino.cc/en/Tutorial/InputPullupSerial This example code is in the public domain */ void setup() { //start serial connection ...
Warning:This code uses a simple debounce solution that wastes processor time. Note:You can find other debounce methodshere. Sketch: With simple debounce Copy Sketch #define BUTTON_PIN 2 #define LED_PIN LED_BUILTINvoidsetup(void){pinMode(BUTTON_PIN,INPUT_PULLUP);pinMode(LED_PIN,OUTPUT); ...
code is executed repeatedly, as it is a loop. digitalWrite(13,HIGH);//Step 1: The LED Turns on. delay(1000);//Step 2: Wait one second. digitalWrite(13,LOW);//Step 3: Shut the LED off. //Something's missing here: The LED will immediately turn back on as there is...