Arduino造轮子—红外遥控器

今天练习的程序是实现红外遥控器的控制，首先，通过太极创客的视频来看看最终的实现结果：

本次程序例程来自太极创客官网，此平台的Arduino教程深入浅出，对于想学习Arduino的同学，首推太极创客团队。(๑•̀ㅂ•́)و✧

以下便是今天练习的造轮子程序：

#include <IRremote.h>
#include <EEPROM.h>

#define codeTypeEAddr 0
#define codeLenEAddr 1
#define toggleEAddr 2
#define codeValueEAddr 3
#define RECV_PIN 11

#define BUTTON_PIN 12
#define STATUS_PIN LED_BUILTIN

IRrecv irrecv(RECV_PIN);
IRsend irsend;

decode_results results;

int codeType;
unsigned long codeValue;
unsigned int rawCodes[RAWBUF];
int codeLen;
int toggle;

int lastButtonState;

void setup(){
	Serial.begin(9600);
    irrecv.enableIRIn();
    pinMode(BUTTON_PIN,INPUT_PULLUP);
    pinMode(STATUS_PIN,OUTPUT);
    delay(10);
    loadEepromValues();
}

coid loop(){
    int buttonState=!digitalRead(BUTTPN_PIN);
    if(lastButtonState==HIGH&&buttonState==LOW){
        Serial.println("Reseased");
        irrecv.enableIRIn():
    }
    
    if(buttonState){
        Serial.println("Pressed, sending");
        digitalWrite(STATUS_PIN,HIGH);
        sendCode(lastButtonState==buttonState);
        digitalWrite(STATUS_PIN,LOW);
        delay(50);
    }else if(irrecv.decode(&result)){
        degitalWrite(STATUS_PIN,HIGH);
        storeCode(&result);
        irrecv.resume();
        digitalWrite(STATUS_PIN,LOW);
    }
    lastButtonState=buttonState;
}

void storeCode(decode_result *resukts){
    codeType=results->decode_type;
    int count=result->rawlen;
    if(codeType==UNKNOWN){
        Serial.println("Receive unknown code, saving as raw");
        codeLen=result->rawlen-1;
        for(int i=1;i<=codeLen;i++){
            if(i%2){
                rawCodes[i-1]=results->rawbuf[i]*UNECPERTICK-MARK_EXCESS;
                Serial.print(" m");
            }else{
                rawCodes[i-1]=result->rawbuf[i]*USECPERTICK+MARK_EXCESS;
                Serial.println(" s");
            }
            Serial.print(rawCodes[i-1],DEC);
        }
        Serial.println("");
    }else{
        if(codeType==NEC){
            Serial.print("Received NEC: ");
            if(result->value==REPEAT){
                Serial.println("repeat; ingnoring.");
                return;
            }  
        }else if(codeType==SONY){
            Serial.println("Received SONY: ");
        }else if(codeType==PANASONIC){
            Serial.println("Received PANASONIC: ");
        }else if(codeType==JVC){
            Serial.println("Received JVC: ");
        }else if(codeType==RC5){
            Serial.println("Received RC5: ");
        }else if(codeType==RC6){
            Serial.println("Received RC6: ");
        }else{
            Serial.print("Unexpected codeType ");
            Serial.println(codeType, DEC);
            Serial.println("");
        }
        Serail.println(result->value,HEX);
        codeValue=result->value;
        codeLen=result->bits;
    }
    writeEepromVal();
}

void sendCode(int repeat){
    if(codeType==NEC){
        if(repeat){
            irsend.sendNEC(REPEAT,codeLen);
            Serial.println("Sent NEC repeat");
        }else{
            irsend.sendNEC(codeValuecodeLen);
            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==PANASONIC){
        irsend.sendPanasonic(codeValue,codeLen);
        Serial.print("Sent Panasonic");
        Serial.println(codeValue,HEX);
    }else if(codeType==JVC){
        irsend.sendJVC(codeValue,codeLen);
        Serial.print("Sent JVC");
        Serial.println(codeValue,HEX);
    }else if(codeType==RC5||codeType==RC6){
        if(!repeat){
            toggle=1-toggle;
        }
        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("Senr RC6")
            Serial.println(codeValue,HEX);
        }
    }else if(codeType==UNKNOWN){
        irsend.sendRaw(rawCodes,codeLen,38);
        Serial.println("send raw");
    }
}

void loadEepromValues(){
    codeType=EEPROM.read(codeTypeEAddr);
    delay(10);
    codeLen=EEPROM.read(codeLenEAddr);
    delay(10);
    toggle=EEPROM.read(toggleEAddr);
    delay(10);
    codeType=EEPROM.read(codeTypeEAddr);
    delay(10);  //
    EEPROM.get(codeValueEAddr,codeValue);
}

void writeEepromValue(){
    EPPROM.write(codeTypeEAddr, codeType);
    delay(10);
    EEPROM.write(codeLenEaddr,codeLen);
    delay(10);
    EEPROM.write(toggleledEAddr,toggleEAddr);
    delay(10);
    EEPROM.put(codeValueEAddr,codeValue);
    delay(10);
}

心得：
此例程使用了Arduino第三方库，且视频中也没有详细的代码解释，所以在造轮子的过程中总是磕磕绊绊，这就需要不断地查阅第三方库所附带的源码以及各种文档与手册；

这次造轮子其实是在看完视频一周之后才开始着手，当遇到磕绊而去查看过去的笔记的时候，真后悔当初没有把笔记录详细。记笔记的时候总是有这样的傲慢：现在懂了=永远懂了。这次造轮子的手足无措就是对自己的警示。记笔记一定要详细，这样就会不会“笔记用时方恨少”！