中国建设银行车主卡网站,爱站关键词查询,微信小程序开通要钱吗,嵊州网站学院 班级 学号 姓名 日期 成绩 实验题目 按键和中断 实验目的 实现闪灯功能转换 硬件原理 无 关键代码及注释 /* Button Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached… 学院 班级 学号 姓名 日期 成绩 实验题目 按键和中断 实验目的 实现闪灯功能转换 硬件原理 无 关键代码及注释 /* Button Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. The circuit: * LED attached from pin 13 to ground * pushbutton attached to pin 2 from 3.3V * 10K resistor attached to pin 2 from ground * Note: on most Arduinos there is already an LED on the board attached to pin 13. created 2005 by DojoDave http://www.0j0.org modified 30 Aug 2011 by Tom Igoe modified Apr 27 2012 by Robert Wessels This example code is in the public domain. http://www.arduino.cc/en/Tutorial/Button */ // constants wont change. Theyre used here to // set pin numbers: const int buttonPin PUSH2; // the number of the pushbutton pin const int ledPin1 GREEN_LED; // the number of the LED pin const int ledPin2 YELLOW_LED; const int ledPin3 RED_LED; int ledState LOW; int ledState1 LOW; int ledState2 LOW; int ledState3 LOW; volatile bool state HIGH; int count 0; // variables will change: int buttonState 0; // variable for reading the pushbutton status long previousMillis 0; // will store last time LED was updated long term 0; // the follow variables is a long because the time, measured in miliseconds, // will quickly become a bigger number than can be stored in an int. long interval 1000; void setup() { // initialize the LED pin as an output: pinMode(ledPin1, OUTPUT); pinMode(ledPin2, OUTPUT); pinMode(ledPin3, OUTPUT); //digitalWrite(ledPin,state); pinMode(buttonPin,INPUT_PULLUP); attachInterrupt (buttonPin ,blink ,RISING); } void blink(){ state !state; } void loop(){ unsigned long currentMillis millis(); if(stateHIGH){ if(currentMillis - previousMillis interval) { // save the last time you blinked the LED previousMillis currentMillis; // if the LED is off turn it on and vice-versa: if (ledState LOW) ledState HIGH; else{ ledState LOW; } // set the LED with the ledState of the variable: digitalWrite(ledPin1, ledState); digitalWrite(ledPin2, ledState); digitalWrite(ledPin3, ledState); } } else{ if(currentMillis - previousMillis interval) { previousMillis currentMillis; if (ledState1 LOW ledState2 LOW ledState3 LOW) ledState1 HIGH; else if(ledState1 HIGH){ ledState1 LOW; ledState2 HIGH; } else if(ledState2 HIGH){ ledState2 LOW; ledState3 HIGH; } else if(ledState3 HIGH){ ledState3 LOW; ledState1 HIGH; } digitalWrite(ledPin1, ledState1); digitalWrite(ledPin2, ledState2); digitalWrite(ledPin3, ledState3); } } } 实验步骤 在上次作业基础上加上了按钮中断 实验结果 思考与反馈 无
