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Temperature data loggiing


cwr

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With my heating system now operation I'm eager to get a data logger on it to see how it's performing and get it set up. Just need a data logger with about 4 channels...

I've used Pico hardware in the past, but the price of these is somewhat excessive for all I need, so looking for a more cost effect alternatives.

I know others on here have made their own loggers, which I'd love to do but genuinely don't have the time right now to learn how to. Maybe someday.

A couple of options include these:

 

https://www.ebay.co.uk/itm/115424989748

 

https://www.amazon.co.uk/Instruments-Channel-Thermometer-Thermocouple-Temperature-Main-Unit-88598/dp/B00M9Z3JJ8/?_encoding=UTF8&pd_rd_w=GsnH3&content-id=amzn1.sym.31c9090c-9b65-4f91-bf37-04dd92281172&pf_rd_p=31c9090c-9b65-4f91-bf37-04dd92281172&pf_rd_r=XK0SMPSNAWYRM7Z4QR67&pd_rd_wg=RjsLH&pd_rd_r=27d9a663-062f-439f-abf8-d542a29b5631&ref_=pd_gw_ci_mcx_mi

 

Has anyone any experience of either f these, or recommendations of other options?

 

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8 hours ago, cwr said:

I know others on here have made their own loggers, which I'd love to do but genuinely don't have the time right now to learn how to.

There was a time I had no idea how to make one.  A DS18B20 based temperature logger was the second project I did.

The advantage of making your own is that code is easily available (could post mine up) and if you use a Raspberry Pi W of some sort, you have bluetooth and wifi built in.

Edited by SteamyTea
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1 hour ago, SteamyTea said:

There was a time I had no idea how to make one.  A DS18B20 based temperature logger was the second project I did.

The advantage of making your own is that code is easily available (could post mine up) and if you use a Raspberry Pi W of some sort, you have bluetooth and wifi built in.


Getting your hands on a Raspberry Pi is a problem at the moment. March 2023 is the earliest at the moment. 

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  • 4 weeks later...

Thanks for the replies folks.

So the eBay one would need coding? I can deal with taking data from a .csv file fine but just don't have the time right now to get into programming. 

Tempted tho to buy a couple of raspberry pi's for the future.

In the meantime, I've found these:

 

https://www.ebay.co.uk/itm/272131903720

 

Got a couple order to see what they are like.

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  • 2 months later...
On 06/11/2022 at 20:37, cwr said:

Just need a data logger with about 4 channels...

~~~~

A couple of options include these:

 

https://www.ebay.co.uk/itm/115424989748

 

 

On 06/11/2022 at 21:56, Radian said:

I'm slightly more attracted to the Latvian one on ebay. Fairly low risk financially, although you'd need to do a bit of coding to automate the data collection. Maybe a macro in Excell or something in node-red.

 

They've a new version which can take an SD card for simpler data transfer. It also appears to include the Bluetooth module. Works out around £75 incl. VAT and delivery for an 8Ch temp logger.

 

https://www.ebay.com/itm/115695655888

 

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43 minutes ago, IanR said:

They've a new version which can take an SD card for simpler data transfer. It also appears to include the Bluetooth module. Works out around £75 incl. VAT and delivery for an 8Ch temp logger.

 

Funny coincidence, today I hooked up a Raspberry Pi with a pair of 1-wire sensors to make a radiator balancing kit. 8 sensors would be equally do-able:

 

IMG_20230204_221922867.thumb.jpg.ff640b41688460197862d7460b25c2be.jpg

 

This one is wirelessly sending the readings over MQTT to a client app on my phone for the display. Will be strapping the Pi to a USB battery bank for moving it from rad to rad.

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3 minutes ago, Radian said:

Funny coincidence

Mine is still chugging along very reliable.

 

view-source:http://7apbx6oiuuxtkegq7idqbwgwcjzbjvmwdqcddnesnptjkvd7qkvhkxyd.onion/data/1wire-4-2-2023.html

 

5 minutes ago, Radian said:

Will be strapping the Pi to a USB battery bank for moving it from rad to rad.

I must get around to charging up my old solar powered 5V battery banks, I am sure I can find the box they have been hiding in for the last 5 years.

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On 04/02/2023 at 22:24, Radian said:

Funny coincidence, today I hooked up a Raspberry Pi with a pair of 1-wire sensors to make a radiator balancing kit. 8 sensors would be equally do-able:

You can daisy chain up to around 20 DS18B20s quite happily, though you may want to use overlayFS and Log2RAM if you are using an SD card as your system device.  A battery backup hat (PiHut has few) might also be useful as well as a strip board hat if you want to bring all of your OW devices back to a central connection board 

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