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Post by playersz28 on Aug 15, 2019 19:16:58 GMT
I started a quick experiment, I downloaded Tera Term to my Windows 10 computer. In the TT setup it showed that COM3 9600BAUD was connected, which is the connection to the Rover via RS232/USB cable. Now the only problem is the missing command set that allows you to talk to the Rover. Will Renogy be releasing the command set for communication with the Rover, or is there a download, of the command set, available somewhere. Not sure how many people are using the RS232/USB cable, but it seems that this device is no longer supported by Renogy, maybe a public release of the command set is in order. While thinking about that, maybe a public release of the command set for the BT module is in order also. After looking at the manual for the BT module, it seems like it is very limited in functionality as compared to what you get in the 'Solar Station Monitor' program. Just my 2 cents. I asked for it last year and Admin posted it in this thread Modbus doc
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raydas
Solar Devotee
Posts: 166
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Post by raydas on Aug 15, 2019 20:25:12 GMT
Thanks, got it. Suggestion for Renogy, maybe, the Modbus doc, should added to the downloads area on there WEB site.
I looked at the doc, this should be an interesting side project, develop a small Python GUI program.
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Post by Admin on Aug 15, 2019 21:54:29 GMT
Thanks, got it. Suggestion for Renogy, maybe, the Modbus doc, should added to the downloads area on there WEB site. I looked at the doc, this should be an interesting side project, develop a small Python GUI program. Hello, please see here: Here: renogy.boards.net/thread/266/rover-modbus
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Post by playersz28 on Aug 16, 2019 14:13:37 GMT
Thanks, got it. Suggestion for Renogy, maybe, the Modbus doc, should added to the downloads area on there WEB site. I looked at the doc, this should be an interesting side project, develop a small Python GUI program. Google for "epsolar modbus python" and you'll find a number of different projects that'll have some stuff to get you started. This is an older shot of one of the screens mine generates. I've since modified it a bit for more data.
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Post by retrodaredevil on Aug 24, 2019 17:19:43 GMT
My monitor app is based off of EPsolarserver code and runs on a Pi installed in my RV. I also have an ESP8266 reading a shunt via INA219. Still using the ESP because the INA lib is Python and I haven't got around to converting it to C++. I also log RV location by picking up the NEMA data from an old phone. I know you said that we could Google the epsolar modbus, but I was wondering if you had any experience with a specific problem here: renogy.boards.net/thread/559/setting-voltage-values-working-program . I'm trying to set some values. Also, have you come across any inconsistency in the documentation, such as having to divide kWH by 1000 instead of 10000? You don't have to post your code, I'm just trying to understand the data the rover gives as best as possible. I don't exactly trust the documentation 100% right now (explained in the other thread I just created).
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Post by playersz28 on Aug 26, 2019 12:12:20 GMT
My monitor app is based off of EPsolarserver code and runs on a Pi installed in my RV. I also have an ESP8266 reading a shunt via INA219. Still using the ESP because the INA lib is Python and I haven't got around to converting it to C++. I also log RV location by picking up the NEMA data from an old phone. I know you said that we could Google the epsolar modbus, but I was wondering if you had any experience with a specific problem here: renogy.boards.net/thread/559/setting-voltage-values-working-program . I'm trying to set some values. Also, have you come across any inconsistency in the documentation, such as having to divide kWH by 1000 instead of 10000? You don't have to post your code, I'm just trying to understand the data the rover gives as best as possible. I don't exactly trust the documentation 100% right now (explained in the other thread I just created). I'm not setting anything with my app, just monitoring. I used the desktop app to configure the Rover initially. I would say you're right about the kwh as I doubt my system as generated 19,000+kwh in 78 days as show in that screen shot. The docs aren't all that good, typical of most Chinese products. They can engineer them, just don't know how to write tech docs. I found the most info when searching for epsolar as that's what the Renogy products are.
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nicola
Solar Newcomer
Posts: 1
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Post by nicola on Jan 22, 2020 15:27:41 GMT
So is it possible to buy a RJ12 to USB adapter? And if not, why?
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Post by retrodaredevil on Jan 22, 2020 20:36:10 GMT
To my knowledge, there are no available RJ12 to USB adapters that are internally wired correctly, so unless you find a cable that you are sure is wired correctly, you should try creating a cable manually.
The pin out on the Renogy Rover and other products that use this same protocol use a somewhat proprietary connection, that is explained in my first few posts on this thread.
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