DS18B20 sensor[s] on ESP

General
21

I just ordered a few of the ESP32-C3 super minis to play with... even though they can have WIFI signal issues (work arounds are published).

I am going to create some i2c sensor based 'Zone' monitors, since my house has a number of 'Zones'... do to its design. I did this with Pi Zeros years ago, that updated a database, and let me watch how my house climate changes, room to room, zone to zone.

Get this, I can tell where people are in what room, based on the humidity level changes! Go figure.

22

And to some extent, what they are getting up to! :flushed_face:

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23

@jbudd, well that would need a camera! LOL

24

I've got several setup (DS18B20, Tasmota, D1 Mini) - 6 sensors per ESP device (max it'll handle reliably). Rock solid :slight_smile:

25

Which GPIO pin do you use? And which flavour of Tasmota?

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HTH :slight_smile:

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27

I use ESPEasy, which is similar to Tasmota and works very well with 18DS20.

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28

Iā€™m not going to help here but Iā€™ve been using ESP 32ā€™s and Tasmota for years and have not experienced any issues. Not with connectivity nor with WiFi issues. Currently have about 6-8 temperature sensors about the house.

29

Thanks for all the feedback.

The consensus of opinion seems to be that it should work.
So I have ordered some more sensors and will try again and report back.

30

Maybe a bit late, but do get the sensors from a reputable source, there are a lot of fakes about.

31

Happy Go Lucky Store, Shenzhen City.
As reputable as the Baron of Foy I should think.
They do stock a range of form factors though, which is encouraging.

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32

Can you post a link to that store - i have not seen a couple of those form factors before and they could come in handy

Craig

33

This is the link for the sensors. https://www.aliexpress.com/item/1005007010180076.html

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34

I've had a couple of those and most of them were China clones, but working as expected and reasonably accurate.

With one recent batch though, I wasn't able to change the accuracy, it was fixed at maximum (12-bit). Which is annoying, because the reading takes a lot longer, especially with multiple devices one the bus.

I didn't buy on Aliexpress, but a "trusted" vendor/reseller here in Germany. So that won't spare you from counterfeits these days :confused:

In case anyone is interested, here's a good documentation on how to distinguish these clones and their pitfalls.

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