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DS18B20 HEX code — time to pull it off October 13, 2011

Posted by rik94566 in 1-wire, aquaponic automation, aquaponics, arduino, CEA, Controlled Environment Agriculture, DIY aquaponics, DS18B20, HEX code, indoor aquaponics, One-wire, sensor, Sensor Hub, Stainless Steel Temp Probe, Temperature Probe.
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To accomplish this task 4 things are needed:

DS18B20 temp probe

4.7Kohm resistor

your arduino

sketch that will do the actual work for you.


3-wire configuration

I will be using the Sketch that I pulled down from hacktronics website —  you can get there also.


HEX code sketch details

Here is what the sketch will look when it is run:


write the HEX code down somewhere so you do not forget it and make sure you know which probe the HEX code goes with.



1. terry king - October 13, 2011

No, DON’T write it down!

Cut and paste from Serial window to a text file!!

One of those vibrator type or rotary engravers work well to put ID numbers on your sensors.

Regards, Terry King
…On the Mediterranean in Italy

2. rik94566 - October 14, 2011

Terry – what do you mean by DON’T wire it down?


3. Marylouise Brola - October 20, 2011

Admiring the hard work you put into your website and in depth information you provide. It’s great to come across a blog every once in a while that isn’t the same old rehashed material. Excellent read! I’ve saved your site and I’m including your RSS feeds to my Google account.

rik94566 - October 20, 2011

Marylouise – thanks for the comments. The reason I started this blog is because I felt that all I was reading was nothing more than rehash of the same information. So I agree with you and try to bring a new level of understanding to body of knowledge that seems to me to be overly complex for non-engineer types.

4. plr - October 26, 2011

plr articles hey there,
just came across you on aol. Nice article, I was just thinking about something similar. May start out blogging myself! Many thanks plr ebook

5. woodworking - May 10, 2014

I really like it when people get together and share ideas.
Great site, stick with it!

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