Cheap Internet temperature logger

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chris246810

Cheap Internet temperature logger

Post by chris246810 » Wed Mar 15, 2017 4:08 pm

Been playing around with raspberry and arduino type projects recently. While browsing I came across this board called nodemcu.
Following some instructions I found online I have made this little temperature logger which sends data to the Internet every few seconds and displays it on a graph using thingspeak.
It was relatively easy to put together following the instructions and cost maybe 10-15 quid in parts (mostly from aliexpress)

Could be an interesting little project for those who like a bit of tinkering.
Can't remember the exact website where I got the instructions but if you search thingspeak nodemcu temperature logger you should be able to find it.
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JabbA

Re: Cheap Internet temperature logger

Post by JabbA » Wed Mar 15, 2017 4:33 pm

They're great little devices, aren't they! I replaced the ST-1000s in my fermenter and kegorator with one. If you fancy a bit more control over the UI, have a look at NodeRED.

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Cheers,
Jamie

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Wed Mar 15, 2017 4:44 pm

Nice. How easy was that to set up? I know next to nothing about coding. My project so far have all been just following step by step instructions.

Currently making a brewpi for my fermentation but might look into using this for my keezer if it's not too difficult.
I bought a few of them as they were really cheap, thinking of using them for monitoring air and water temps for my hydroponic tomatoes as summer is just around the corner. Possibly even monitoring ph values of nutrient solution if I can work out how to do it.

JabbA

Re: Cheap Internet temperature logger

Post by JabbA » Wed Mar 15, 2017 4:50 pm

chris246810 wrote:I know next to nothing about coding
Same here! I only got into palying with Arduino after seeing it for the first time on here!

NodeRED is really easy to get to grips with, just a case of dragging nodes together and wiring them up! The ESP 8266 sends data via MQTT over wifi to my RaspberyPi, but there are plenty of cloud based hosts.

Cheers,
Jamie

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Wed Mar 15, 2017 5:25 pm

Sweet, I'll have a play with that then

Rad

Re: Cheap Internet temperature logger

Post by Rad » Fri Mar 17, 2017 5:49 pm

Check out the BrewPiLess project. That's what I'll start using soon. Much simpler to build than a full BrewPi and pretty much equivalent in functionality.

JabbA

Re: Cheap Internet temperature logger

Post by JabbA » Fri Mar 17, 2017 6:17 pm

That's for that Rad, I'll have a more indepth look. I'm wanting to implement steped fermentation profiles and it'll be interesting to see how he's done it.

Cheers,
Jamie

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alexlark
Under the Table
Posts: 1387
Joined: Thu May 02, 2013 12:29 pm
Location: Rhondda, South Wales

Re: Cheap Internet temperature logger

Post by alexlark » Sun Mar 19, 2017 12:15 pm

Rad, you bought any components yet for that BrewPiLess build?

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Sun Mar 19, 2017 7:35 pm

Thanks rad, i hadn't heard of the brewpiless before.
Just changed my thingspeak logger over to a brewpiless, was relatively easy to do, seems almost as good as brewpi and It does thingspeak logging too so I can check temps from anywhere.
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Might even make another so I can use the pi out of my existing brewpi for something else

roscoe

Re: Cheap Internet temperature logger

Post by roscoe » Mon Mar 20, 2017 12:06 am

the Sonoff TH is completely hackable has a relay and socket for a temp probe, even in a kinda box
ESP8266 based
cost me about £8.50 inc del

AnthonyUK

Re: Cheap Internet temperature logger

Post by AnthonyUK » Mon Mar 20, 2017 10:32 am

roscoe wrote:the Sonoff TH is completely hackable has a relay and socket for a temp probe, even in a kinda box
ESP8266 based
cost me about £8.50 inc del
You can also buy the basic type for £4 and add a DS18b20 using the custom firmware available which makes it much more useful.

Here's one I've flashed.

Image

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Mon Mar 20, 2017 10:41 am

Do they do a 2 relay version or can they be linked together somehow?

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Mon Mar 20, 2017 10:58 am

What size are these things. I'm wondering if they could be made to fit inside a standard single or double lighting/socket backbox

AnthonyUK

Re: Cheap Internet temperature logger

Post by AnthonyUK » Mon Mar 20, 2017 11:02 am

chris246810 wrote:Do they do a 2 relay version or can they be linked together somehow?
There are duo and quad versions.

http://sonoff.itead.cc/en/products/sonoff/sonoff-dual
chris246810 wrote:What size are these things. I'm wondering if they could be made to fit inside a standard single or double lighting/socket backbox
They do a wifi switch so it doesn't even need to be fitted where the switch goes. In the ceiling would be ideal.

chris246810

Re: Cheap Internet temperature logger

Post by chris246810 » Mon Mar 20, 2017 11:14 am

Sweet. I'm buying some of these. Hopefully can find somewhere in the UK that have them at a decent price. I hate waiting for stuff from china

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