Hi!

I’m implementing my weather station exporter to Windy.Stations https://github.com/shchuko/acurite-bridge

I’m not sure I’ve understood how to report ‘rainin’, so currently I simply disabled reporting this parameter and need your support.

Please correct me if I’m wrong

0. Pre-conditions: my station reports current precipitation accumulation, not increase, evety ~30..60 seconds. So I'm calculating rainin myself
1. At 1:05 precipitation accumulation was 1.0 inch
2. At 2:15 precipitation accumulation changed to 1.01 inch (increase +0.01 inch)
3. At 2:25 precipitation accumulation changed to 1.015 inch (increase +0.005 inch)
4. No more rain than, next few hours precipitation accumulation was 1.015 inch

My station reports the data once a minute. I guess that I have to report rainin this way:

• At 1:05 rainin=0.0
• [...] (no rain this period)
• At 2:14 rainin=0.0
• At 2:15 rainin=0.01 (accumulation increase 1.0 -> 1.01; +0.01)
• At 2:16 rainin=0.01 (last hour increase is still 0.01)
• [...] (accumulation reported by station was not changed)
• At 2:24 rainin=0.01
• At 2:25 rainin=0.015 (accumulation increase 1.01 -> 1.015; +0.005)
• At 2:26 rainin=0.015 (last hour increase is still 0.015)
• [...] (no more rain)
• At 3:14 rainin=0.015 (last hour increase is still 0.015)
• At 3:15 rainin=0.005 (increase recorded at 2:15 is out of “last hour window”, so now last hour increase is 0.005)
• At 3:16 rainin=0.005 (last hour increase is still 0.005)
• [...] (no more rain)
• At 3:24 rainin=0.005 (last hour increase is still 0.005)
• At 3:25 rainin=0.0 (increase recorded at 2:25 is out of “last hour window”, so now last hour increase is 0.0)

tl;dr I’m using a sliding 1-hour window and reporting the precipitation increase over the last hour. If the increase is too old to be in this window, it’s dropped and not reported.

Am I right here?