I have just started a little project which goes like this.
A Gas sensor module outputs data at 9600 baud, 8 bit, no parity, 1 stop bit, No hardware flow control (only RX TX and GND) Inverted output.
The format of the data stream is as follows:
A 12345 B 12345 C 12345 D 12345 <CR.<LF>
The...