Waterproof Temperature Probe (DS18B20)

Adam Black

started a topic about 1 year ago

Hello,

There doesn't seem to be a wiring guide for the Waterproof Temperature Probe (DS18B20) that's sold in the Konnected store. Can someone please help me figure out how to wire this up?

@Support - It would probably be a good idea to either link to the answer on the product page or create a new link in the "How to Wire" section. Some of us require a bit of hand-holding :)

Thanks in Advance!

A

Adswalter
said about 1 year ago

Ds18b20 - see attachment. Red - 3.3 or 5v - constant power Yellow - Digital - konnected zone of choice Black - Ground - ground Resistor needed when using long wires or multiple sensors. In Smartthings Once wired and configured you will have to wait approx. 3-6mins before the sensor shows up in the things menu with its Id number as its name.

PiTemp02.jpg
(36.6 KB)
A

Adam Black
said about 1 year ago

Thank you!
E

Edward Ramski
said 10 months ago

This is an old topic but I have a question. The diagram shows the mentioned resistor but it is labeled as a 4K7 Ohm resistor whicj is obvously a typo. So what is correct? is it a 4K, a 47K.
A

Adswalter
said 10 months ago

No typo, some people like to use that format where the k takes the place of the . 4k7 = 4.7k, 4700 Ohms
A

Adswalter
said 10 months ago

A spec of dirt on a schematic that's supposed to read 47k gets interpreted as 4.7k could be very problematic
E

Edward Ramski
said 10 months ago

Is that a Europe thing? Worked in Electronics 46 years, Retired now since 2015. Never seen it annotated that way. I still learn something new every day.
A

Adswalter
said 10 months ago

Unsure of the origin of this practice but its considered RKM code.
B

Brian Egge
said 4 months ago
FWIW, you must upgrade your firmware > 2.2.3 first. Once added you will see in the logs something like this:
46dff7e0-4d4e-45da-b4a4-f10123456789 9:14:15 PM: debug Adding new thing attached to Konnected: 680123456789|9|28DD544A211901DE 46dff7e0-4d4e-45da-b4a4-f10123456789 9:14:15 PM: debug Adding new thing attached to Konnected: 680123456789|9|28DD544A211901DE
This you will see a device named 28DD544A211901DE in your Things. At first the temperature may be way off, but this will correct on the next poll cycle. The default polling is every three minutes, but you can adjust this in the Device Handler code.

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