Can only send a 15 character message

[mic-max]

Since the receiver has a 16 char buffer right now it can only receive and print the first 15 characters due to the terminal \0 bit sent. Increase this buffer to allocate 17 chars if you want a 16 character message.

(This buffer will probably be overwritten for longer transmissions in future videos, and is just a quick fix if anyone has a similar issue)

[beneater]

I'd recommend modifying this part of the receiver:

  if (bit_position == 8) {
    strncat(message, &rx_byte, 1);
  }

to look something like this:

  if (bit_position == 8) {
    if (strlen(message) >= 15) {
      strcpy(message, message + 1);
    }
    strncat(message, &rx_byte, 1);
  }

The strcpy() copies the string starting at the second character of the message to the beginning of the message. In other words, it drops the first character and shifts everything to the left.

This will allow the receiver to keep on receiving data forever and the message will just keep scrolling off the screen.