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tobyweston / temperature-machine

Data logger for multiple DS18B20 temperature sensors on one or more machines
Apache License 2.0
67 stars 22 forks source link

A few suggestions / feature requests #42

Closed Quaxo76 closed 6 years ago

Quaxo76 commented 6 years ago

Hello, after successfully using this system for a few days I have some suggestions, which are not bug reports but more like "feature requests"...

1) It would be nice to have the current version printed somewhere on the web page... just for reference, and to know if an update worked fine. Maybe near the copyright message on the bottom? Or as an "about" entry on the side menu...

2) I noticed that the numeric temperature value updates automatically, but the graph doesn't. It would be nice to have it update automatically - in real time or even just every x minutes. That would allow us to leave a browser window open, with a constantly up-to-date graph being shown.

3) The main graph and the 24-hour small graph are very smooth. But the 1-week and 1-month are "stepped". I suppose a reading is taken every so often, and then replicated for several pixels, until the new reading is taken. But this means that the graphs are quite "messy" and a bit meaningless if the temperature oscillates regularly, as is the case where a thermostat keeps the temp within a certain range. If for example 2 or 3 readings happen to be taken when the temperature is at the max value, then the following reading happens when the temp is at the minimum, then another when it's at max again... the graph would show a long "high temp" phase, followed by a low peak. This is not very representative. It would be nice if every "horizontal segment" could be made to show the average value of all the readings of the respective time interval. Even better would be if every pixel had its own value, to avoid the "stepped" look...

4) It would be nice to have an option to configure the y-axis range (especially on the main graph, but also on the smaller ones); maybe an option to leave it to automatic, or manually set a range with minimum and/or maximum temperature... The same goes for the "green zones" on the long term graphs. Ideally these should be configurable from the web page, but a config file would do as well. This would also avoid the "compressing" effect of spurious spikes...

5) One last thing... I've written three short scripts that save the small graphs to three folders (the 1-day at the end of the day, the 1-week at the end of the week, and the 1-month at the end of the month) to keep them for future reference. They are activated using cron. Maybe others could be interested in this, and it could be made an option in the software?

Thank you again for a wonderful piece of software! Cristian

tobyweston commented 6 years ago

Thanks for the thoughts.

  1. 22

  2. This is deliberate, my use case is that I leave the browser open then might come back a few days later and still want to see what it has been plotting. I've laboured this decision though and recognise the need for it. I may well make it switchable.
  3. Can you share some examples? I suspect this is the nature of the aggregated views for > 24 hr charts. It has to drop data. Have a look at RRD and how it handles archive data.
  4. Can do
  5. Good idea, if you share you scripts I'll at least add them to the docs site. Raise an issue and we can discuss and evolve the idea there.

Can you create issues for each please? One issue: one feature. It makes it easier for me to manage and code against single issues then close and track each, one at a time.

Thanks again

tobyweston commented 6 years ago

Think these are all covered off in #46, #47, #45 and #44 (thanks for adding those), so I'll close this one.