#include <CAN.h>

#define TX_GPIO_NUM   5
#define RX_GPIO_NUM   4

void setup() {
  Serial.begin (115200);
  while (!Serial);
  delay (1000);

  Serial.println ("CAN Sender");

  // Set the pins
  CAN.setPins (RX_GPIO_NUM, TX_GPIO_NUM);

  // start the CAN bus at 500 kbps
  if (!CAN.begin(500E3)) {
    Serial.println("Starting CAN failed!");
    while (1);
  }
}

void loop() {
  // send packet: id is 11 bits, packet can contain up to 8 bytes of data
  Serial.print("Sending packet ... ");

  CAN.beginPacket(0x18);
  CAN.write(1);
  //CAN.write('e');
  //CAN.write('l');
 // CAN.write(3);
//  CAN.write(100);
  CAN.endPacket();

  Serial.println("done");

  delay(10);
/*
  // send extended packet: id is 29 bits, packet can contain up to 8 bytes of data
  Serial.print("Sending extended packet ... ");

  CAN.beginExtendedPacket(0xabcdef);
  CAN.write('w');
  CAN.write('o');
  CAN.write('r');
  CAN.write('l');
  CAN.write('d');
  CAN.endPacket();

  Serial.println("done");

  delay(1000);
  */
}