Multiple DS18B20 and DallasTemperature library

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Re: Multiple DS18B20 and DallasTemperature library

By martinayotte
- Fri Feb 12, 2016 9:22 pm #41010
xtal wrote:I have 7 parasitic connected to a [ link USB] connected to pc using LogTemp
AC-outside - air in/air out/liquid line/suction line
Attic- Temperature-return plenum-supply plenum
been working good for 4 years/ sometimes lose outside sensor -lead coroision

Interesting !
Are this LogTemp on Linux ?
What USB link with OneWire are you using ? (i2c-tiny ?)
What is your 2 wires Parasitic looks like (I presume not only pullup) ?
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Re: Multiple DS18B20 and DallasTemperature library

By xtal
- Sat Feb 13, 2016 8:41 am #41028 Martin

LogTemp by http://www.MRsoft.fi , I think its windows only
There is probably other LogTemps out there.....
Link USB is a serial converter usb - RJ45 connector -- there may be a straight serial version avail
Link USB by iButtonLink,LLC - Download the user guide, take a look....
Send serial ascii to converter , which turns into 1-w feeding the RJ45 connector
It's a little pricy about $30-35 , but does a good job, and could be script driven

PC ---> usb/rj45 --> term strip |----30ft--------->term strip------ 4 10 ft wires -----DS18B20 on each wire
_________________________ | ----20ft--------->term strip------ 3 5ft wires -------DS18B20 on each wire
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