Low Cost Digital serial port RS232 thermometer - vera plugin?

Other Devices & Integrations Climate Control & Temperature Sensors
1

I have purchased a low-cost Digital serial port RS232 thermometer from ebay, and I’m trying to interface it with vera

Although this thermometer uses the serial port, it is based on 1-wire, and not serial protocol.
Can anyone suggest how to make it work with vera?

Here are the instructions from the seller:

You must install digitemp or owfs. http://www.digitemp.com/ http://owfs.org/ I am using digitemp: :~# digitemp_DS9097 -i -s /dev/ttyS0 :~# digitemp_DS9097 -q -t 0 -c .digitemprc
2

IMHO you might be barking up the wrong tree. Vera is a low resource device and can easily be overloaded. This type of communication has to generate all the timing sequences to talk on a one wire network. I think finding a true RS232 device would be a better option. Guessed has an interface for a general purpose A/D multi purpose adapter that could easily pick up an external temperature probe.
Here is typical c code for talking on a one wire network:

// Read and return the page data and SHA-1 message authentication code (MAC)
// from a DS2432.
//
int ReadPageMAC(int page, unsigned char *page_data, unsigned char *mac)
{
int i;
unsigned short data_crc16, mac_crc16;

    // set the speed to 'standard'
    SetSpeed(1);

    // select the device
    if (OWTouchReset()) // Reset the 1-Wire bus
            return 0; // Return if no devices found

    OWWriteByte(0xCC); // Send Skip ROM command to select single device

    // read the page
    OWWriteByte(0xA5); // Read Authentication command
    OWWriteByte((page << 5) & 0xFF); // TA1
    OWWriteByte(0); // TA2 (always zero for DS2432)

    // read the page data
    for (i = 0; i < 32; i++)
            page_data[i] = OWReadByte();
    OWWriteByte(0xFF);

    // read the CRC16 of command, address, and data
    data_crc16 = OWReadByte();
    data_crc16 |= (OWReadByte() << 8);

    // delay 2ms for the device MAC computation
    // read the MAC
    for (i = 0; i < 20; i++)
            mac[i] = OWReadByte();

    // read CRC16 of the MAC
    mac_crc16 = OWReadByte();
    mac_crc16 |= (OWReadByte() << 8);

    // check CRC16...
    return 1;

It’s not so easy!
Regards
Tim Alls