// Serial Chat main() { int ret; clear(); puts("Serial Chat\n"); ret = seropen(57600, "8N1C", 50); puts("seropen() - " + ret + "\n"); while (1) { if (event(0)==1) // grafitti written sersend(key()); if (serdata()) // data waiting puts((char)serrecv()); // save batteries sleep(10); } // This line included for completeness serclose(); }