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Today.ini: Difference between revisions
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Steve Loft never shared his souce code, so what follows is just a guess at how the update might work. The frequency at which data is read from a weather station varies depending on the type, but is at least every 30 seconds. | Steve Loft never shared his souce code, so what follows is just a guess at how the update might work. The frequency at which data is read from a weather station varies depending on the type, but is at least every 30 seconds. | ||
The indications are that Cumulus 1 has an internal one minute timer that triggers the logging of readings (after conversion to units selected) to an internally held | The indications are that Cumulus 1 has an internal one minute timer that triggers the logging of readings (after conversion to units selected) to an internally held [[Recent history|recent history database]] and the comparison of those readings against existing internally held extremes/totals. The file is updated immediently afterwards, each update only changes those lines (within sections) where the extreme/total/count/time has changed, and other lines retain the same content as before the update. | ||
Whilst you are strongly advised not to manually edit the file with Cumulus running, because access to the file cannot be shared, if you are able to complete the edit between one real-time interval and the next, any change you make is retained. | Whilst you are strongly advised not to manually edit the file with Cumulus running, because access to the file cannot be shared, if you are able to complete the edit between one real-time interval and the next, any change you make is retained. | ||