No idea..i cut my jk 4s485 connector
Monitor JK BMS with Solar Assistant?
- Thread starter Redbeardbeer
- Start date
I got my RS485 to USB adapter and waiting for the JK RS485 thingy to arrive so I can hook it up just like JK shows in the Howto. Two questions, will I be able to graph the BMS data in Solar Assistant? Do I need some kind of USB driver in the Raspberry 3 for the adapter? It has a CH340 chip it says.
using the jk rs485 didn't work for me...i thought most did not use that, instead they cut the wire off of it and use that.
look over this thread and you will see it, but yeah essentially, more like 3 wires
It might work and it might not. Mine did not with any method.
can you list exactly what you used?
NCSolarGarage
13.2kW Off-Grid
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- Sep 23, 2021
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I'm using Home Assistant, not Solar assistant, but will SA not allow you to just connect via BT using an ESP32?
I'm able to run wireless with the ESP32 connecting to the JK via BT, then uploading the data via WIFI, but I'm not sure how the SA interfaces. In my scenario, its easier than fiddling with those tiny cables, and wondering if it might be an option for SA also.
I'm able to run wireless with the ESP32 connecting to the JK via BT, then uploading the data via WIFI, but I'm not sure how the SA interfaces. In my scenario, its easier than fiddling with those tiny cables, and wondering if it might be an option for SA also.
Ah ok. I will just do without it. Sadly.
If your bms has a console port and uses pylontech protocol - check out this project which is set up to report to home assistant .
It will work with either esp32 or raspberry pi.
Pages · ClassicDIY/PylonToMQTT Wiki
Reads data from the Sage BMS console port and publishes to MQTT - Pages · ClassicDIY/PylonToMQTT Wiki
github.com
I'd rather not have another rasp pi. Have one already with solar assistant. Don't think jk bms support pylontech. Solar Assistant will have to do. It does provide battery info but not accurate of course.If your bms has a console port and uses pylontech protocol - check out this project which is set up to report to home assistant .
It will work with either esp32 or raspberry pi.
Pages · ClassicDIY/PylonToMQTT Wiki
Reads data from the Sage BMS console port and publishes to MQTT - Pages · ClassicDIY/PylonToMQTT Wiki
Hi i just finish setup my connection with inverter must pv1800 and bms jk 8s
for help i can tell you buy cheapest usb ttl converter what you found and it wil work ! i use ft232 rs232 ttl inverter price like 10Euro and its not working then i order cheapest 1 euro in Poland and its working great in my case i use 8s bms witch 7s settings focus on the connector i have opositive way according to picture from seller i should have +21v on right but on my right pin its gnd! look on the picture
ps to connect to the bms i use connector from old laptop fan its 3 pin
for help i can tell you buy cheapest usb ttl converter what you found and it wil work ! i use ft232 rs232 ttl inverter price like 10Euro and its not working then i order cheapest 1 euro in Poland and its working great in my case i use 8s bms witch 7s settings focus on the connector i have opositive way according to picture from seller i should have +21v on right but on my right pin its gnd! look on the picture
ps to connect to the bms i use connector from old laptop fan its 3 pinAttachments
Any basic FT232/PL2303/CP2102 and similar based converter should do fine. Something like this for example:
Those are for the RS-485 module though, not when connecting to the TTL port directly without the converter.
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