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solmoller / eversolar-monitor

Script to capture data and create statistics from Eversolar/zeversolar Solar Inverters. Includes easy install image files for Raspberry Pi. Working edition since 2012 :-)
https://github.com/solmoller/eversolar-monitor/blob/wiki/Introduction.md
MIT License
30 stars 20 forks source link

Anything possible when no RS485 communications module? #65

Closed ginoputrino closed 1 year ago

ginoputrino commented 1 year ago

Hi, I have recently moved into a house with an eversolar TL2000, and would like to get this software up and monitoring, but the inverter does not have the RS485 RJ45 comms module, only the socket where it should go: Imgur Photo here.

Does anyone know where I could buy an old comms module, or failing that, help me to reverse engineer the board so I could build my own?

Even a photo of someone's communications board would help.

Thanks!

wotid commented 1 year ago

I don't know where you can source one, but I can show you a picture.

Steve. 20230210_185114

solmoller commented 1 year ago

That is a ten year old inverter. I'd recommend buying an entire used unit. That way you have a Comms board and a spare unit.

Good luck!

Henrik

fre. 10. feb. 2023 07.13 skrev ginoputrino @.***>:

Hi, I have recently moved into a house with an eversolar TL2000, and would like to get this software up and monitoring, but the inverter does not have the RS485 RJ45 comms module, only the socket where it should go: Imgur Photo here https://imgur.com/a/fvh6Msn.

Does anyone know where I could buy an old comms module, or failing that, help me to reverse engineer the board so I could build my own?

Even a photo of someone's communications board would help.

Thanks!

— Reply to this email directly, view it on GitHub https://github.com/solmoller/eversolar-monitor/issues/65, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQL6EARFZAI5IMZZVDXY6TWWXMCLANCNFSM6AAAAAAUXNH26I . You are receiving this because you are subscribed to this thread.Message ID: @.***>

ginoputrino commented 1 year ago

I don't know where you can source one, but I can show you a picture.

Steve. 20230210_185114

Thanks Steve, looks like a transceiver chip and a few voltage levellers. Might be possible to put something together if I can't find the part.

ginoputrino commented 1 year ago

Hi Henrik, If I can find a secondhand one, I will totally do that. However I'm not sure how common these units were in my country (Australia). Otherwise, if I'm not successful finding parts, I will post a kicad file of what I put together. If the 7V line can provide enough current, I might even add a 5V regulator so that I can add a rpi zeroW inside the unit.

wotid commented 1 year ago

Where in Australia are you? I can mail you one of mine. Only thing is I can't get to the post office until next Saturday at the earliest.

ginoputrino commented 1 year ago

Steve, that would be awesome. I live in Sydney. How can I send you a private message?

ginoputrino commented 1 year ago

Ok, done, feel free to delete your message.

ginoputrino commented 1 year ago

Hi Guys, wanted to thank the very excellent @wotid for sending me his spare RS485 card. Since I also didn't have the plate with a cable gland and my inverter is in a location that can sometimes see some weather, I've chosen to make a very small package that could live in the inverter so that everything kept it's water tight seal.

I'm using a raspberry pi zero W, a buck converter to power it by running off the 7V line, and a very small WITMOTION RS485 to USB adapter, which I can confirm works very well.

Since the 7V line shuts down at night, I'm running the rpi with the SD card in read only mode which is a really great feature for this kind of thing, and sending data out via MQTT to my home assistant server.

PV output here: https://pvoutput.org/list.jsp?userid=111270

Pic here.

Thanks again!

wotid commented 1 year ago

Good job Gino and good to see the data going to PVOutput