Receive Packet

Implement the receiveMICUDPpacket() function:

int receiveMICUDPpacket() {
  int size = 0;
  
  size = Udp.parsePacket();
  // Check if size is larger than 0, if yes we have received something
  if ( size > 0) {
    Serial.println("packet received");
    // We've received a packet, read the data from it
    Udp.read(packetBuffer, size); // read the packet into the buffer
    return(size);
  }
}