Monitoring gas meter - Landis & Gyr E6S

This may be a starting block, from
Arduino / file / examples / 04communication





/*
Software serial multple serial test
Receives from the hardware serial, sends to software serial.
Receives from software serial, sends to hardware serial.

Note;
Not all pins on the Mega and Mega 2560 support change interrupts,
so only the following can be used for RX:
10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69

Not all pins on the Leonardo support change interrupts,
so only the following can be used for RX:
8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).

created back in the mists of time
modified 25 May 2012 by Tom Igoe based on Mikal Hart's example
This example code is in the public domain.

*/
#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(300);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}


Serial.println("Connection Made");

// set the data rate for the SoftwareSerial port
mySerial.begin(300);
//mySerial.println("Hello, world?");
mySerial.println("/?!");
}

void loop() // run over and over
{
if (mySerial.available())
Serial.write(mySerial.read());
if (Serial.available())
mySerial.write(Serial.read());
}