void setup() {
	/*** SETUP section */
	// the twelite main class
	the_twelite
		<< TWENET::appid(APP_ID)    // set application ID (identify network group)
		<< TWENET::channel(CHANNEL) // set channel (pysical channel)
		<< TWENET::rx_when_idle();  // open receive circuit (if not set, it can't listen packts from others)
​
	// Register Network
	auto&& nwk = the_twelite.network.use<NWK_SIMPLE>();
	
	uid = random(1, 5); // set uid by random() (1..4)
	nwk	<< NWK_SIMPLE::logical_id(uid); // set Logical ID. (0xFE means a child device with no ID)
​
	/*** BEGIN section */
	SerialParser.begin(PARSER::ASCII, 128); // Initialize the serial parser
	the_twelite.begin(); // start twelite!
​
	/*** INIT message */
	Serial << "--- WirelessUart (id=" << int(uid) << ") ---" << mwx::crlf;
}

SerialParser.begin(PARSER::ASCII, 128); 

while(Serial.available())  {
	if (SerialParser.parse(Serial.read())) {
		Serial << ".." << SerialParser;
		const uint8_t* b = SerialParser.get_buf().begin();
		uint8_t addr = *b; ++b; // the first byte is destination address.
		transmit(addr, b, SerialParser.get_buf().end());
	}
}

if (the_twelite.receiver.available()) {
	auto&& rx = the_twelite.receiver.read();
	
	// check the packet header.
	const uint8_t* p = rx.get_payload().begin();
	if (rx.get_length() > 4 && !strncmp((const char*)p, (const char*)FOURCHARS, 4)) {
		Serial << format("..rx from %08x/%d", rx.get_addr_src_long(), rx.get_addr_src_lid()) << mwx::crlf;
​
		smplbuf_u8<128> buf;
		mwx::pack_bytes(buf			
				, uint8_t(rx.get_addr_src_lid())            // src addr (LID)
				, make_pair(p+4, rx.get_payload().end()) );	// data body
​
		serparser_attach pout;
		pout.begin(PARSER::ASCII, buf.begin(), buf.size(), buf.size());
		Serial << pout;
	}
}

:FE00112233X
​
:FE001122339C
​

:03AABBCC00112233X
​
:03AABBCC0011223366
​