A project I started years ago is finally coming together. This is a control panel with pages for different areas of your solar power system. I made a pcb that monitors












1. grid voltage and current and kWh.
2. Inverter output voltage, amps, kw, and kWh.
3. Monitoring up to 2 strings of pv.
4. Rpi4 with 512b ssd for data logging, receiving i2c data and sending to the control panel along with various pertinent data.
5. Home automation will be added as well with setup for off the shelf WiFi devices.

The pics are just one of many versions as I add and adjust each page. I use a PowMr inverter
That has rs232 and rs485 available. Most likely the ra232 will be used to make available data that’s normally
available on the “Solar Of Things” app on iOS. I have already added one browser app to control a 16 channel
WiFi relay board. There will be a browser app for monitoring the system for use locally and https:// remote.
with my browser app I can get real-time data unlike the iOS app that uses solar.siseli.com and update every few minutes.
Edited 2026-10-04 00:37 by Solarnewbie

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Is there a southern hemisphere version? It's hard to read the inverted screens.    

  greybeard said  

Is there a southern hemisphere version? It's hard to read the inverted screens.    

I really don’t know how they got inverted. They were right side up when I uploaded them. Had this trouble at Anotherpower.com when they were still around. They died a slow death. Not quite as much traffic here as there used to be. Eventually I want to offer kits for the sensor board and config files and code for hmi panels from DWIN. They’re not cheap but real easy to configure with the free software. The. You just need the mcu to talk with the panel. Every data variable, text variable and button has a unique address so the code uses the addresses. Simple.

Looks good, that is a serious amount of monitoring you are doing.
Does the battery monitoring give you state of charge too?
I had an idea that you were retiring to live in in the Phillipines but your location is still USA. did you move

Pete