How to send float over serial

Question

What\'s the best way to send float, double, and int16 over serial on Arduino?

The Serial.print() only sends val

Answer 1

Perhaps that is best Way to convert Float to Byte and Byte to Float,-Hamid Reza.

int breakDown(int index, unsigned char outbox[], float member)
{
  unsigned long d = *(unsigned long *)&member;

  outbox[index] = d & 0x00FF;
  index++;

  outbox[index] = (d & 0xFF00) >> 8;
  index++;

  outbox[index] = (d & 0xFF0000) >> 16;
  index++;

  outbox[index] = (d & 0xFF000000) >> 24;
  index++;
  return index;
}


float buildUp(int index, unsigned char outbox[])
{
  unsigned long d;

  d =  (outbox[index+3] << 24) | (outbox[index+2] << 16)
    | (outbox[index+1] << 8) | (outbox[index]);
  float member = *(float *)&d;
  return member;
}

regards. `