Method parseFeedback

src/DFPlayerMini_Fast.cpp:1003–1176

/ ! @brief Parse MP3 player query responses. @return True if success, false if error. */ /

 */
 /**************************************************************************/
bool DFPlayerMini_Fast::parseFeedback()
{
	while (true)
	{
		if (_serial->available())
		{
			uint8_t recChar = _serial->read();

			if (_debug)
			{
				Serial.print("Rec: ");
				Serial.println(recChar, HEX);
				Serial.print("State: ");
			}

			switch (state)
			{
			case find_start_byte:
			{
				if (_debug)
					Serial.println("find_start_byte");

				if (recChar == dfplayer::SB)
				{
					recStack.start_byte = recChar;
					state = find_ver_byte;
				}
				break;
			}
			case find_ver_byte:
			{
				if (_debug)
					Serial.println("find_ver_byte");

				if (recChar != dfplayer::VER)
				{
					if (_debug)
						Serial.println("ver error");

					state = find_start_byte;
					return false;
				}

				recStack.version = recChar;
				state = find_len_byte;
				break;
			}
			case find_len_byte:
			{
				if (_debug)
					Serial.println("find_len_byte");

				if (recChar != dfplayer::LEN)
				{
					if (_debug)
						Serial.println("len error");

					state = find_start_byte;