FAQ

Mostly about the power output of the solar system I have set up in my home.

• 2 x 580 watt Jinko Tiger N-type panels.
• 4 x 300 watt brandless Chinese panels.
• PowMr 2400w Inverter.
• PowMr 60A MPPT contoller.
• 2 x old mostly dead sealed lead acid batteries, that can still deliver 1 amp each.

The battery pair works as low capacity buffer and are not for power storage.

This is a 24 volt system.

First I am collecting the data from the Inverter which uses Voltronic motherboard like 80% of other Chinese inverter.

There's a RS232 port on the inverter's side that looks like an Ethernet port. The box comes with an ethernet to RS232 cable.

Then used a RS232 to USB converter to connect it to USB port. Added another USB to micro-USB converter and connected to a Raspberry PI Zero 2 W that was running at my control room.

Used a program to read from the RS232 every few seconds and send that data to a MQTT server running on this machine. And then displaying live data on this page, fetching from the MQTT server.

That's the jest of it.

Sure. Download the sources used for data collection here.

https://github.com/sanjirhabib/voltronic