#include <SoftwareSerial.h>

#include "ELMduino.h"

SoftwareSerial mySerial(2, 3); // RX, TX

#define ELM_PORT mySerial

#define BUZZER 10

ELM327 myELM327;

int green = 8;

int red = 9;

uint32_t rpm = 0;

uint32_t kph = 0;

uint32_t engineload = 0;

uint32_t enginetemp = 0;

uint32_t throttleposition = 0;

uint32_t intakeairtemp = 0;

int32_t fueltype = 0;

const int beepFrequencyS1 = 1500; //1000Hz, 연결성공시 부저 주파수1

const int beepFrequencyS2 = 2500; //1000Hz, 연결성공시 부저 주파수2

const int beepFrequencyF = 750; //500Hz, 연결실패시 부저 주파수

const int beepDurationS = 150; //1.0sec ,성공시 지속시간, (31~65535 Hz)

const int beepDurationF = 450; //0.35sec ,실패시 지속시간,

unsigned long pre_time = 0;

unsigned long cur_time = 0;

int ledState = LOW;

void setup()

{

pinMode(green, OUTPUT);

pinMode(red, OUTPUT);

pre_time = millis();

#if LED_BUILTIN

pinMode(LED_BUILTIN, OUTPUT);

digitalWrite(LED_BUILTIN, LOW);

#endif

Serial.begin(38400);

ELM_PORT.begin(38400);

Serial.println("Attempting to connect to ELM327...");

if (!myELM327.begin(ELM_PORT))

{

Serial.println("Couldn't connect to OBD scanner");

do {

digitalWrite(red, HIGH);

digitalWrite(green, LOW);

tone(BUZZER, beepFrequencyF, beepDurationF);

delay(850); //ELM327 연결 실패시 0.85초 간격으로 Fail 부저 울림

} while (1);

}

Serial.println("Connected to ELM327");

digitalWrite(green, HIGH);

digitalWrite(red, LOW);

tone(BUZZER, beepFrequencyS1, beepDurationS);

delay(600);

tone(BUZZER, beepFrequencyS1, beepDurationS);

delay(600);

tone(BUZZER, beepFrequencyS1, beepDurationS);

delay(600);

tone(BUZZER, beepFrequencyS2, beepDurationS);

delay(600);

noTone(10);

//ELM327 연결 성공시 Success 부저 4회 울림

}

void loop()

{

cur_time = millis();

float tempRPM = myELM327.rpm();

int32_t tempVEHICLE_SPEED = myELM327.kph();

float tempENGINE_LOAD = myELM327.engineload();

float tempENGINE_COOLANT_TEMP = myELM327.enginetemp();

float tempTHROTTLE_POSITION = myELM327.throttleposition();

float tempINTAKE_AIR_TEMP = myELM327.intakeairtemp();

float tempFUEL_TYPE = myELM327.fueltype();

digitalWrite(red, LOW);

if (cur_time = pre_time >= 500)

{

pre_time = cur_time;

if (ledState == LOW) {

ledState = HIGH;

}

else {

ledState = LOW;

}

digitalWrite(green, ledState);

}

if (myELM327.status == ELM_SUCCESS)

{

rpm = (uint32_t)tempRPM;

Serial.print("RPM : "); Serial.println(rpm);

kph = (int32_t)tempVEHICLE_SPEED;

Serial.print(kph); Serial.println("km/h");

engineload = (uint32_t)tempENGINE_LOAD;

Serial.print("EngineLoad : "); Serial.print(engineload); Serial.println("%");

enginetemp = (uint32_t)tempENGINE_COOLANT_TEMP;

Serial.print("EngineCoolantTemp : "); Serial.print(enginetemp); Serial.println("˚C");

throttleposition = (uint32_t)tempTHROTTLE_POSITION;

Serial.print("ThrottlePosition : "); Serial.print(throttleposition); Serial.println("%");

intakeairtemp = (uint32_t)tempINTAKE_AIR_TEMP;

Serial.print("IntakeAirTemp : "); Serial.print(intakeairtemp); Serial.println("˚C");

fueltype = (int32_t)tempFUEL_TYPE;

Serial.print("FuelType : "); Serial.print(fueltype);

if (fueltype == 0)

Serial.println("Not Available");

else if (fueltype == 1)

Serial.println("Gasoline");

else if (fueltype == 2)

Serial.println("Methanol");

else if (fueltype == 3)

Serial.println("Ethanol");

else if (fueltype == 4)

Serial.println("Disel");

else if (fueltype == 5)

Serial.println("LPG");

else if (fueltype == 6)

Serial.println("CNG");

else if (fueltype == 7)

Serial.println("Propane");

tone(BUZZER, beepFrequencyS2, beepDurationS);

delay(500);

}

else

digitalWrite(green, LOW);

if (cur_time - pre_time >= 1300)

{

pre_time = cur_time;

if (ledState == LOW) {

ledState = HIGH;

}

else {

ledState = LOW;

}

digitalWrite(red, ledState);

}

printError();

}

void printError()

{

Serial.print("Received: ");

for (byte i = 0; i < myELM327.recBytes; i++)

Serial.write(myELM327.payload[i]);

Serial.println();

if (myELM327.status == ELM_SUCCESS)

Serial.println(F(" ELM_SUCCESS"));

else if (myELM327.status == ELM_NO_RESPONSE)

Serial.println(F(" ERROR: ELM_NO_RESPONSE"));

else if (myELM327.status == ELM_BUFFER_OVERFLOW)

Serial.println(F(" ERROR: ELM_BUFFER_OVERFLOW"));

else if (myELM327.status == ELM_UNABLE_TO_CONNECT)

Serial.println(F(" ERROR: ELM_UNABLE_TO_CONNECT"));

else if (myELM327.status == ELM_NO_DATA)

Serial.println(F(" ERROR: ELM_NO_DATA"));

else if (myELM327.status == ELM_STOPPED)

Serial.println(F(" ERROR: ELM_STOPPED"));

else if (myELM327.status == ELM_TIMEOUT)

Serial.println(F(" ERROR: ELM_TIMEOUT"));

else if (myELM327.status == ELM_TIMEOUT)

Serial.println(F(" ERROR: ELM_GENERAL_ERROR"));

tone(BUZZER, beepFrequencyF, beepDurationF);

delay(100);

}

각 상태에서 LED 초록 빨강으로 표시하려고 하는데 열씸히 코딩했는데 깜빡이지를 않네.... 정답을알려도 ㅠㅠㅠ 머가리 부서진다

아그리고 printerror 나오는 속도가 기본예제보다 ㅈㄴ 느려졌는데 이건 printerror 이전 내용이 늘어나서 연산할게 많아져서 printerror 까지 오래걸려서 그런거야 아님 내가 코딩한것중에 좃같이 delay 잘못넣은거 땜에 그런거야?? 머가리 터져버리겠어 형들..