#include <SPI.h>;
#include <mcp2515.h>;

struct can_frame _frame;
MCP2515 mcp2515(10);

bool flag = false;


void setup() {
  Serial.begin(9600);
  SPI.begin();

  mcp2515.reset();
  mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ); //Sets CAN at speed 500KBPS and Clock 8MHz
  mcp2515.setNormalMode();

  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(A3, OUTPUT);

}

int i = 0;
bool debugState = false;

void SendCanPackage(bool state)
{
  _frame.can_id = 0x001;
  _frame.can_dlc = 4;
  _frame.data[0] = 5;
  _frame.data[1] = state;
  _frame.data[2] = 0x00;
  _frame.data[3] = 0x00;
  mcp2515.sendMessage(&_frame);


}

void loop() {

  int analogValue = analogRead(A3);
  if (analogValue > 756 && !debugState)
  {
    debugState = true;
    SendCanPackage(debugState);
  }
  if (analogValue < 300 && debugState)
  {
    debugState = false;
    SendCanPackage(debugState);

  }

  if (mcp2515.readMessage(&_frame) == MCP2515::ERROR_OK)
  {
    int meyPinId = _frame.data[0];
    int state = _frame.data[1] > 0;
    Serial.println("CAN FRAME ------------");
    Serial.print("0x");
    Serial.println( _frame.can_id ^ CAN_EFF_FLAG, HEX);
    Serial.println( _frame.can_dlc);

    for (int i = 0; i < _frame.can_dlc ; i++)
    {
      Serial.println( _frame.data[i], HEX);
    }
    Serial.println("----------------------");


    if (meyPinId == 1)
    {
      digitalWrite(2, state);
    }
    if (meyPinId == 2)
    {
      digitalWrite(3, state);
    }
    if (meyPinId == 3)
    {
      digitalWrite(4, state);
    }
    if (meyPinId == 4)
    {
      digitalWrite(5, state);
    }
    if (meyPinId == 5)
    {
      digitalWrite(6, state);
    }
    if (meyPinId == 6)
    {
      digitalWrite(7, state);
    }
    if (meyPinId == 7)
    {
      digitalWrite(8, state);
    }
    if (meyPinId == 8)
    {
      digitalWrite(9, state);
    }


  }

  delay(20);

}