Re: [Owfs-developers] Calibration of DS18B20 sensors?

2014-04-07 Thread Jerry Scharf
Joris, I am only writing this because I am a geek and like to play with reading accuracy. The 18B20s are not precision temperature sensors and should not be relied on to given anything better than .5-1C accuracy and .25-.5C repeatability. There is more than just a single calibration run that g

Re: [Owfs-developers] Calibration of DS18B20 sensors?

2014-04-07 Thread Michael Markstaller
On 07.04.2014 12:41, paul.alfille wrote: > > You can heat them one at a time. Yes, thats the easiest way I also used many times: just putting your finger on one gives pretty immidiate results. On a side note about "calibration": most times you only calibrate your measurement-errors (environment

Re: [Owfs-developers] Calibration of DS18B20 sensors?

2014-04-07 Thread paul.alfille
You can heat them one at a time.  Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Mick Sulley Date:04/07/2014 5:52 AM (GMT-05:00) To: "OWFS (One-wire file system) discussion and help" Subject: Re: [Owfs-developers] Calibration of DS1

Re: [Owfs-developers] Calibration of DS18B20 sensors?

2014-04-07 Thread Mick Sulley
You have to connect it and read the ID. On 06/04/14 23:05, Joris Meijerink wrote: > Hi, > > Anybody here tried to calibrate the 1-wire temperature sensors > additional to the factory calibration? Only reference I've found sofar > is this one: > http://yosemitefoothills.com/Thermometers/Thermomete