CAN and RS485 BMS Emulated Protocols for DIY Battery to work with LV and HV Invertors - JK BMS JBD Daly 123Smart - OEM Battery

[mrconstantin84]

Ok.

So I it is like this. Jkbms -> jk rs485 -> esp32 to connect to your device ?

Why can’t I connect to bt then?

BT Connection:

Jk Name - the name u have on device on ur phone app

BT protocol 12S

Serial interface OFF

OR

Serial Connection

BT Protocol OFF

Serial protocol JKBMS

Hardware connection for Serial

jkbms -> esp32 without rs485 adaptor.

 

[Lieberkind]

BT Connection:

Jk Name - the name u have on device on ur phone app

BT protocol 12S

Serial interface OFF

OR

Serial Connection

BT Protocol OFF

Serial protocol JKBMS

Hardware connection for Serial

jkbms -> esp32 without rs485 adaptor.

View attachment 30549

But the max485 uses these pins on esp

At the moment use do not use the jk rs485 adaptor. And if I read the schematic right, I connect rx/tx to esp on pin d18 and d19.

 

[ch-pk]

Hi. I have a problem. wanted to update via OTA but it didn't work. no idea why. I'm trying to flash it again but it doesn't work anymore. how do you get the bin file on it? Are you doing that with bootloader.bin .......... on which range 0x0 , 0x10000 ???? it just doesn't want to.

 

[Lieberkind]

I get connected on serial connection, but no data from bms.

Only cell count.

 

[mrconstantin84]

I get connected on serial connection, but no data from bms.

Only cell count.

do u have data on bt?

 

[Lieberkind]

do u have data on bt?

Yes

do u have data on bt?

But charge discharge and balancing are off

If I use ble 02s I get all data from by bms

 

[mrconstantin84]

Hi. I have a problem. wanted to update via OTA but it didn't work. no idea why. I'm trying to flash it again but it doesn't work anymore. how do you get the bin file on it? Are you doing that with bootloader.bin .......... on which range 0x0 , 0x10000 ???? it just doesn't want to.

i Tested on my boards and OTA work fine



check if ur boards is in boot mode when u try to flash it again press boot button before

 

[mrconstantin84]

Yes

But charge discharge and balancing are off

If I use ble 02s I get all data from by bms

Select interface BT CAN and u will have also the charge discharge and balance

i will check about the serial.

what pin do u use for rx tx

 

[ch-pk]

Ich habe auf meinen Boards getestet und OTA funktioniert einwandfrei

View attachment 30553

Überprüfen Sie, ob sich Ihr Board im Boot-Modus befindet, wenn Sie versuchen, es erneut zu flashen. Drücken Sie vorher die Boot-Taste

Mit welchem Programm flashst du es? und welche Einstellungen? Ich bekomme es nicht mehr hin.

 

[Lieberkind]

Select interface BT CAN and u will have also the charge discharge and balance

i will check about the serial.

what pin do u use for rx tx

I have disconnected the max485 and connected the gps port from bms to 16 and 17.

 

[mrconstantin84]

Mit welchem Programm flashst du es? und welche Einstellungen? Ich bekomme es nicht mehr hin.

ESP32 DEV KIT1



if u want to write with boot and partion table



hope is fine now

 

[mrconstantin84]

I have disconnected the max485 and connected the gps port from bms to 16 and 17.

if the wires are ok u can put this settings and serial need to work

 

[Lieberkind]

if the wires are ok u can put this settings and serial need to work

View attachment 30555View attachment 30556

Thanks.

Now it works with 1 bms.

Is it possible to connect 2 bms via ttl?

 

[mrconstantin84]

Thanks.

Now it works with 1 bms.

Is it possible to connect 2 bms via ttl?

If u have serial data on first u can connect second on bt, just out the bt protocol on 12s not off and the name of the second jk

 

[Lieberkind]

Now I got 2 bms online. Ttl and bt.

I just got info data from one. Is this correct?

I get a lot of blank pages when I trying to get info.

 

[mrconstantin84]

Now I got 2 bms online. Ttl and bt.

I just got info data from one. Is this correct?

I get a lot of blank pages when I trying to get info.

U need to have 2 tables with the cell values, the gray table from btop need to be one for serial one for bt. the settings part is same for both.

The new webpage data are uploaded one at 3 seconds.
The serial and can is evry 1 sec

 

[Lieberkind]

U need to have 2 tables with the cell values, the gray table from btop need to be one for serial one for bt. the settings part is same for both.

The new webpage data are uploaded one at 3 seconds.
The serial and can is evry 1 sec

Ok.

I don’t know why I get blank pages.

And I get strange % in serial connection

 

[ch-pk]

ESP32 DEV KIT1

View attachment 30554

if u want to write with boot and partion table

View attachment 30557

hope is fine now

Super. Jetzt hat funktioniert es. Danke nochmal.

 

[mrconstantin84]

Ok.

I don’t know why I get blank pages.

And I get strange % in serial connection

i fix a bug and upload 4.2b, try and see if ur soc is ok now.

Do u use CAN connection for the invertor?
if u not use it put CAN protocol OFF, the interface will wait for some can msg, can make more delay in ur webpage

 

[mrconstantin84]

Super. Jetzt hat funktioniert es. Danke nochmal.

dont forgot to send some fhoto from invertor