#include <SPI.h>          //Library for using SPI Communication 
#include <mcp2515.h>      //Library for using CAN Communication (https://github.com/autowp/arduino-mcp2515/)
#include <DHT.h>          //Library for using DHT sensor 
 
#define DHTPIN 5
#define DHTTYPE DHT22
 
struct can_frame canMsg;
 
MCP2515 mcp2515(10);
 
DHT dht(DHTPIN, DHTTYPE);     
 
 
void setup()
{
  while (!Serial);
  Serial.begin(115200);
  SPI.begin();               
  dht.begin();               
  mcp2515.reset();
  mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ); 
  mcp2515.setNormalMode();
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
}
 
 
void loop()
{
  int h = dht.readHumidity();       
  int t = dht.readTemperature();    
  int p = analogRead(A0);
  Serial.print("Hőmérséklet: ");
  Serial.println(t);
  Serial.print("Pára: ");
  Serial.println(h);
  Serial.print("data: ");
  Serial.println(p);
  int light = map(p, 0, 1024, 0,255);
  analogWrite(3, light);
  
  canMsg.can_id  = 0x036;            
  canMsg.can_dlc = 8;                
  canMsg.data[0] = h;                
  canMsg.data[1] = t;                
  canMsg.data[2] = light;            
  canMsg.data[3] = 0x00;
  canMsg.data[4] = 0x00;
  canMsg.data[5] = 0x00;
  canMsg.data[6] = 0x00;
  canMsg.data[7] = 0x00;
 
  mcp2515.sendMessage(&canMsg);      
  digitalWrite(4, HIGH);
  delay(1000);
  digitalWrite(4, LOW);
  delay(500);
}