search

jneilliii / OctoPrint-TPLinkSmartplug

106 stars 57 forks source link

[BUG]: Current (Amps) incorrect for 240V #273

Open nuspec opened 3 years ago

nuspec commented 3 years ago

Describe the bug When viewed in the TP-Link Smart Plug control window, the graph shows the Current and Power usage (with history). The Amperage is incorrect as it reports approximately 1 A, with the total power approximately 128W. As I am on 240V this should be approximately 0.5A.

Refering to the KASA App It shows the current Power Usage as approximately 128W.

To Reproduce

  1. Setup TPLink Smart Plug
  2. Connect to ip address and enable.
  3. Go to TP-Link Smart Plug control panel
  4. View Plot and mouse over the Current Usage plot to view value.

Expected behavior The Current (Amps) used should be calculated correctly for 240V power supplies. IE. 0.5A for 120W on 240V

jneilliii commented 3 years ago

I'm not actually sure on this one, because I pull the data direct from the device. The only math involved on the data pulled is for converting devices that report mA and mV

https://github.com/jneilliii/OctoPrint-TPLinkSmartplug/blob/e84264efb36b3c76bf235783cc735a874373ce68/octoprint_tplinksmartplug/__init__.py#L500-L524

nuspec commented 3 years ago

Thanks. I am perplexed why it is reporting 135 W / 1.05A. There doesn't seem to be a setting in the KASA app for voltage (you would think it would know). I don't think it is a power factor issue (maybe?). Is this seen by anyone else?

I have used another piece of software to verify that the numbers reported by the plugin is correct. Sorry for the raised issue.