一块扩展板完成Arduino的10类37项实验（代码+图形+仿真）

实验方案三，有点像了，就是程序复杂些了，暂时这样吧（以后再尝试简化）

11 LED_RGB：全彩 LED 彩虹变化

[mw_shl_code=c,true]/*
Eagler8实验程序列表
11 LED_RGB：全彩 LED 彩虹变化
*/

#define LEDR 9
#define LEDG 10
#define LEDB 11
int i = 0;

void setup()
{
  pinMode(LEDG,OUTPUT);
  pinMode(LEDB,OUTPUT);
  pinMode(LEDR,OUTPUT);
}

void loop()
{
  analogWrite(LEDR,255);
  delay(1000);    //hong
  analogWrite(LEDG,120);
  delay(1000);   //cheng
  analogWrite(LEDR,255);
  analogWrite(LEDG,220);
  delay(1000);   //huang
  analogWrite(LEDR,0);
  analogWrite(LEDG,255);
  delay(1000);   //lv  
  analogWrite(LEDB,255);
  delay(1000);   //qing
  analogWrite(LEDG,0);
  analogWrite(LEDB,255);
  delay(1000);   //lan
  analogWrite(LEDR,255);
  analogWrite(LEDG,0);
  delay(1000);   //zi
  analogWrite(LEDG,255);
  delay(1000);   //bai   
  
  analogWrite(LEDG,0);
  analogWrite(LEDB,0);
  analogWrite(LEDR,255);
  delay(1000);   //zi   
  for(i=0;i<255;i++)
  {
    analogWrite(LEDG,i);
    delay(10);
  }
  for(i=255;i>0;i--)
  {
    analogWrite(LEDR,i);
    delay(10);
  }
   for(i=0;i<255;i++)
  {
    analogWrite(LEDB,i);
    delay(10);
  }
  for(i=255;i>0;i--)
  {
    analogWrite(LEDG,i);
    delay(10);
  }
   for(i=0;i<255;i++)
  {
    analogWrite(LEDR,i);
    delay(10);
  }
   for(i=0;i<255;i++)
  {
    analogWrite(LEDG,i);
    delay(10);
  }
  analogWrite(LEDG,0);
  analogWrite(LEDB,0);
  analogWrite(LEDR,0);
}[/mw_shl_code]

图形编程，估计与实验十相类似，差别不大

12 红外控制，接收红外命令控制板载LED灯亮灭

/*
Eagler8实验程序列表
12 红外控制，接收红外命令控制板载LED灯亮灭（1号键灭，2号键亮，控制距离1-8米，兼容市面上大部分红外遥控器）
说明：开关按键可以自己定义
*/

#include <IRremote.h>

int RECV_PIN = 8;
int LED_PIN = 13;

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn();
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, HIGH);
}

void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    if (results.value == 0xFFA25D)
    {
      digitalWrite(LED_PIN, LOW);
    } else if (results.value == 0xFF629D)
    {
      digitalWrite(LED_PIN, HIGH);
    }
    irrecv.resume();
  }
  delay(100);
}
复制代码

任何键均可控制

13 IRrecord：串口显示读取的红外遥控代码

[mw_shl_code=c,true]/*
Eagler8实验程序列表
13 IRrecord：串口显示读取的红外遥控代码
*/

#include <IRremote.h>

int RECV_PIN = 8;
int BUTTON_PIN = 12;
int STATUS_PIN = 13;

IRrecv irrecv(RECV_PIN);
IRsend irsend;

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
  pinMode(BUTTON_PIN, INPUT);
  pinMode(STATUS_PIN, OUTPUT);
}

// Storage for the recorded code
int codeType = -1; // The type of code
unsigned long codeValue; // The code value if not raw
unsigned int rawCodes[RAWBUF]; // The durations if raw
int codeLen; // The length of the code
int toggle = 0; // The RC5/6 toggle state

// Stores the code for later playback
// Most of this code is just logging
void storeCode(decode_results *results) {
  codeType = results->decode_type;
  int count = results->rawlen;
  if (codeType == UNKNOWN) {
    Serial.println("Received unknown code, saving as raw");
    codeLen = results->rawlen - 1;
    // To store raw codes:
    // Drop first value (gap)
    // Convert from ticks to microseconds
    // Tweak marks shorter, and spaces longer to cancel out IR receiver distortion
    for (int i = 1; i <= codeLen; i++) {
      if (i % 2) {
        // Mark
        rawCodes[i - 1] = results->rawbuf*USECPERTICK - MARK_EXCESS;
        Serial.print(" m");
      }
      else {
        // Space
        rawCodes[i - 1] = results->rawbuf*USECPERTICK + MARK_EXCESS;
        Serial.print(" s");
      }
      Serial.print(rawCodes[i - 1], DEC);
    }
    Serial.println("");
  }
  else {
    if (codeType == NEC) {
      Serial.print("Received NEC: ");
      if (results->value == REPEAT) {
        // Don't record a NEC repeat value as that's useless.
        Serial.println("repeat; ignoring.");
        return;
      }
    }
    else if (codeType == SONY) {
      Serial.print("Received SONY: ");
    }
    else if (codeType == RC5) {
      Serial.print("Received RC5: ");
    }
    else if (codeType == RC6) {
      Serial.print("Received RC6: ");
    }
    else {
      Serial.print("Unexpected codeType ");
      Serial.print(codeType, DEC);
      Serial.println("");
    }
    Serial.println(results->value, HEX);
    codeValue = results->value;
    codeLen = results->bits;
  }
}

void sendCode(int repeat) {
  if (codeType == NEC) {
    if (repeat) {
      irsend.sendNEC(REPEAT, codeLen);
      Serial.println("Sent NEC repeat");
    }
    else {
      irsend.sendNEC(codeValue, codeLen);
      Serial.print("Sent NEC ");
      Serial.println(codeValue, HEX);
    }
  }
  else if (codeType == SONY) {
    irsend.sendSony(codeValue, codeLen);
    Serial.print("Sent Sony ");
    Serial.println(codeValue, HEX);
  }
  else if (codeType == RC5 || codeType == RC6) {
    if (!repeat) {
      // Flip the toggle bit for a new button press
      toggle = 1 - toggle;
    }
    // Put the toggle bit into the code to send
    codeValue = codeValue & ~(1 << (codeLen - 1));
    codeValue = codeValue | (toggle << (codeLen - 1));
    if (codeType == RC5) {
      Serial.print("Sent RC5 ");
      Serial.println(codeValue, HEX);
      irsend.sendRC5(codeValue, codeLen);
    }
    else {
      irsend.sendRC6(codeValue, codeLen);
      Serial.print("Sent RC6 ");
      Serial.println(codeValue, HEX);
    }
  }
  else if (codeType == UNKNOWN /* i.e. raw */) {
    // Assume 38 KHz
    irsend.sendRaw(rawCodes, codeLen, 38);
    Serial.println("Sent raw");
  }
}

int lastButtonState;

void loop() {
  // If button pressed, send the code.
  int buttonState = digitalRead(BUTTON_PIN);
  if (lastButtonState == HIGH && buttonState == LOW) {
    Serial.println("Released");
    irrecv.enableIRIn(); // Re-enable receiver
  }

  if (buttonState) {
    Serial.println("Pressed, sending");
    digitalWrite(STATUS_PIN, HIGH);
    sendCode(lastButtonState == buttonState);
    digitalWrite(STATUS_PIN, LOW);
    delay(50); // Wait a bit between retransmissions
  }
  else if (irrecv.decode(&results)) {
    digitalWrite(STATUS_PIN, HIGH);
    storeCode(&results);
    irrecv.resume(); // resume receiver
    digitalWrite(STATUS_PIN, LOW);
  }
  lastButtonState = buttonState;
}[/mw_shl_code]

Mind+只用简单的三行程序，就能读出红外遥控器各个按键的编码