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The reported Phase A frequency is 1Hz lower than measure with a Fluke multimeter. (59hz in ESPHome vs. 60Hz on Fluke). Is there a way to calibrate frequency like we are able to calibrate voltage? It is also surprising to me that the frequency is exactly 1Hz too low, might this be a bug in the calculation? Are other folks seeing exactly 60Hz (or 50Hz) reported? |
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Replies: 2 comments 2 replies
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Use a sensor filter in ESPhome to add +1 to the value. |
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Some folks are seeing too high or just right: #88. I personally do not capture this information since I don't see the point. To fix this, I'd suggest using Keep in mind the Vue has a resolution of maybe ±0.5 here. It is still very imprecise even if you calibrate it to be accurate. |
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implemented the calibrate_linear filter. Works like a charm. thank you both for the help. |
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I'll add that accurate frequency measurement is helpful in off-grid battery/solar applications that use frequency shifting to adjust inverter output. I love my Vue2 with ESPHome. Thanks so much for the great work! |
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Some folks are seeing too high or just right: #88. I personally do not capture this information since I don't see the point.
To fix this, I'd suggest using
calibrate_linearfilter instead of adding 1:calibrate_linear: ["0 -> 0", "59 -> 60"]. Hopefully I got the syntax right there.Keep in mind the Vue has a resolution of maybe ±0.5 here. It is still very imprecise even if you calibrate it to be accurate.