BMS data not available

[robertdiers]

Hi,

After connecting to my local network I tried to read data from 2 different daly BMS. Sadly I cannot see any values in HTML GUI. GUI itself is working fine. Do I need to use the ADUM or what are u using to read the debug log? Sorry I do not have experience with serial dev. Just used tasmotizer to flash the debug image.

Thanks Robert

[softwarecrash]

hello, for the debug log you need a usb-uart dongle. can you show me your wireing? its look like the esp cant read data from the bms

[robertdiers]

Hi, I used the orignal cable. Black to black, green to green, white to white, red to yellow (as i did not had red pin). I tried less -f for /dev/ttyUSB0 but there doesnt seems to be an output. ![Uploading 20220806_111118.jpg…]()

[robertdiers]

[robertdiers]

[softwarecrash]

ah directly connected the bms to the esp. some bms dont like that, the bms have often not enugh power to pull down the rx pin from the esp, take a look at the readme, i have two versions for solve this problem. so you need the ADUM, or simple a transistor

[robertdiers]

Thanks - thats the info I need. Just have to buy the hardware first...

[softwarecrash]

please give feedback when it works or you have other problems

[robertdiers]

Yes, I will - thanks so far

[PanicMan]

Look at the readme page, either the ADUM or the transistor, both worked for me 👍

[robertdiers]

Yes, I already ordered the transistors. Will give feedback if that works.

[robertdiers]

Hi, it works great with BC327-25 transistor. Thanks for your help!

[robertdiers]

[softwarecrash]

Hi, it works great with BC327-25 transistor. Thanks for your help!

great! so happy logging :) please close the issue when no more problems

[robertdiers]

Fixed