The HVT-1820 is a minor modification of the KIT-1820 which was specifically developed for users of the Home Vision home automation system.
Data is returned in multiple lines in the following format. There is no single line option.
0 122 1 039 2 255 3 255 4 255 5 255 6 255 7 255The first field refers to the channel and the second is the temperature in degrees F plus 50 degrees. That is, a data reading of 122 is interpretted as a temperature reading of 122 - 50 or 72 degrees F. A data reading of 39 is similarly interpretted as a temperature reading of -11 degrees F.
If a DS1820 is not found on a channel a value of 255 is returned.
The idea here is to keep all data unsigned, avoid decimals, provide a fixed field length of three and provide a reading in degrees F.
Please note that I know absolutely nothing about the
On the flip side, you really don't need a Home Vision system to use this kit. The operation is the same as the KIT-1820. The only modification is the format of the returned data.
Please order this as HVT-1820.