Method parse

src/Packet.cpp:119–283

*/

uint8_t Packet::parse(const uint8_t& recChar, const bool& valid)
{
	bool packet_fresh = (packetStart == 0) || ((millis() - packetStart) < timeout);

	if(!packet_fresh) //packet is stale, start over.
	{
		if (debug)
			debugPort->println("ERROR: STALE PACKET");

		bytesRead   = 0;
		state       = find_start_byte;
		status      = STALE_PACKET_ERROR;
		packetStart = 0;

		return bytesRead;
	}

	if (valid)
	{
		switch (state)
		{
		case find_start_byte: /////////////////////////////////////////
		{
			if (recChar == START_BYTE)
			{
				state       = find_id_byte;
				packetStart = millis();	//start the timer
			}

			break;
		}

		case find_id_byte: ////////////////////////////////////////////
		{
			idByte = recChar;
			state  = find_overhead_byte;
			break;
		}

		case find_overhead_byte: //////////////////////////////////////
		{
			recOverheadByte = recChar;
			state           = find_payload_len;
			break;
		}

		case find_payload_len: ////////////////////////////////////////
		{
			if ((recChar > 0) && (recChar <= MAX_PACKET_SIZE))
			{
				bytesToRec = recChar;
				payIndex   = 0;
				state      = find_payload;
			}
			else
			{
				bytesRead = 0;
				state     = find_start_byte;