A few questions about the APP trends.
Device time: from where is it taken? Or, better, how is the device synchronized?
In the trend a temperature value is reported every 15 minutes, what is shown is the instantaneous value at the 15th minute or the average of the values over the 15 minutes?
In the APP I can find a record of data for each day, Where are that data stored, on the device or on the web? How many days will be kept?
Many thanks for your help.
Hello,
The time of the APP is synchronized with the time of the mobile phone. The APP will record data every 15 minutes according to time changes. It displays the instantaneous value of the 15th minute.
The data of ITC-308WIFI is uploaded to the cloud, and it can retain the data for 7 days.
So it is: ITC-308WIFI (connect to 2.4GHz wifi) ā app (cloud) ā phone (wifi/ mobile network).
Hi Tania
15 min. is quite low frequency. Is there any way to increase it to at least every 5 min.? Every minute would be perfect.
Hello,
May I know in what scenarios do you need this function?
Is its temperature fluctuation relatively large?
I want to know if many people need this feature? If the demand is relatively large, I can submit it as a market proposal. Maybe engineers can improve it in the future.
Thank you 
Iām using it to control the central heating in my home. Iām not really using the trend chart because of the lack of precision.
Actually, Iād like to have more indicators on the chart:
is there an API to collect the data from the device or the app?
Sorry, the API is not provided.
I will send it as a suggestion to the engineer, thank you.
Hello,
thank you to all for go inside this topic. Iām using the ITC-308 wifi to control beer fermentationās.
If the data on the trend could be more detailed it will be more usefull in order to better set the heating/cooling differential values.
To have at least 1 minute of resolution will be great.
Another question: at which frequency are updated the āreal timeā data on the APP?
Tank you
Hello,
The real-time data of the APP is updated based on the readings of ITC-308WIFI, it may have a delay of 5-10 seconds.
im having issue and post a topic also
Frequency is also too low for my uses.
Iām using the ITC-308 Wifi as a valve controler on solar panels to heat my pool. This work fine, but the low recording frequency doesnt allow me to see in the recorded data when the valve was closed or openedā¦
A recording frequency faster than once per minute would certainly allow such detectionā¦ Some recording of the heating/cooling status of the ITC-308 (at each status changes) would certainly also do the thing.
Your stuff is just next to the best thing for data analysis at an affordable price. Just a few more tweaks and gadgets, and you will be the sole leader in the datalogging tools and daisy chainning controlers available to mass market!
(and the addition of an API would open your tools to larger still market of datasavvy users)
Thanks for the consideration you have for your users!
k
Is there any update or plan yet to make the data sampling frequency configurable in the app? Thanks
In general any food DIY projects are interested in maintaining temperature and humidity to within a 5 degrees C (or F equivalent) or 5-10% RH. Yes, in many of these applications the temp/humidity changes this much in about 15 mins and you loose all the visibility regarding how these changes happen with only a 15 min window. Competing devices are faster and most wifi temp/humidity monitors are faster (including IBS-TH3 which can be as low as 10mins). Bluetooth monitors are almost instantaneous.
I am using a 308 to control the temperature of a chest freezer - bypassing the freezer thermostat. This works well, but I wasnāt aware of the 15minute lag on the plots. No wonder it doesnāt reflect what the unit screen says! I would like to see much much shorter lag times - instantaneous would be perfect, but even 1 minute would be much better.
The smooth line in the plot is misleading - now that I read that it is only recording every 15 minutes, I can see that I can only read the temperature with the pop out windows on the plot at these intervals. The plot should not be smoothed, but plotted as straight lines between points shown as symbols. This would make it obvious what is being shown.