JK BMS CAN bus comms now possible for inverters that support Goodwe and Pylontech batteries

knd said:

ok i'll try use this like 0,01V

can You explain me these settings
View attachment 213249

should I have these ON or OFF?

and I'd like to thank Your patience

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esphome-jk-bms-can/documents/README/Auto_Charge_Voltage_Logic.md at main · Sleeper85/esphome-jk-bms-can

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chaosnature said:

What GPio are we using for this ESP32 model?
View attachment 213493


tx_pin: GPIO1
rx_pin: GPIO2.......?

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esphome-jk-bms-can/config/config_atom-s3-lite-esp32-s3.yaml at main · Sleeper85/esphome-jk-bms-can

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Sleeper85 said:

esphome-jk-bms-can/config/config_atom-s3-lite-esp32-s3.yaml at main · Sleeper85/esphome-jk-bms-can

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chaosnature said:

I am about the only person not managing to get this to work and i have so many of the Atom Lite chips lying around -this is now a little frustrating

anyone can find out what i might be doing wrong

i perform first use 1st to have the DHCP release ip which i have used as the static config on the wifi section

Code attached .....

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chaosnature said:

O.k - i figured it out -solved my own problem

means I was one of the first if not the first to really know how to flash an S3 on this project as i was one of the first to purchase it for this process and i did exactly what i did now except i didn't follow it all the way through to the final step which is to do an update over the wireless.

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chaosnature said:

I have documented the process in the below link:

How to Flash Atom S3 with EspHome - HA

I struggled with flashing Esp32 S3 Atom lite with the project I was actively involved for the Rs485/CAN battery Comm conversion unlike fasling Esp32 dev kit chip, its not as straightforward. but i finally found a way around it. 1. Make sure the GPIO is correct or else you will end up with a...

diysolarforum.com

Hope it helps other HA EspHome users.

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knd said:

hello again why in the config with ATOM esp32 lite need to use:

Code:

# +--------------------------------------+
# | ESP32 CAN/serial port pins           |
# +--------------------------------------+
# GPIO pins your CAN bus transceiver ATOMIC CANBus Base (CA-IS3050G)
  can_tx_pin: GPIO5
  can_rx_pin: GPIO6

but connection is like on pic below GPIO 1 and 2 or i dont know smth

View attachment 212773

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can_tx_pin: GPIO2
can_rx_pin: GPIO1