IvanZah

I have already installed the 3rd module MCP2515. But unfortunately I have not received data from the IN port. I don't know how to deal with this((((

Hi. Tell me please, how did you manage to make two CAN modules friends via UART ports? I use the Wemos D1 mini board. If there is only one esp32_can, it works. I add the second esp32_can and both do not work. Maybe the problem is in the ESP32 board? Here is part of my yaml: esphome: name: deye-bms friendly_name: deye-bms #comment: ESPHome_For_Deye_SE-G5.1Pro esp32: board: wemos_d1_mini32 framework: type: arduino # Enable logging logger: baud_rate: 0 # disable UART logger level: WARN # Enable webserver web_server: port: 80 version: 3 log: true ota: false # Enable Home Assistant API api: encryption: key: "************************" ota: - platform: esphome password: "*****************" wifi: ssid: ******* password: ******************* # Enable fallback hotspot (captive portal) in case wifi connection fails ap: ssid: "deye" password: "*********" #spi: # id: MspSpi # clk_pin: GPIO18 # Change to your wiring needs # mosi_pin: GPIO23 # Change to your wiring needs # miso_pin: GPIO19 # Change to your wiring needs canbus: ############################################### # Порт IN (250KBPS), зовнішній модуль MCP2515 # ############################################### #- platform: mcp2515 # id: mcp2515_can # spi_id: MspSpi # cs_pin: GPIO17 # Change to your wiring needs # mode: LISTENONLY # clock: 8MHZ # use_extended_id: True - platform: esp32_can id: in_can # use_extended_id: True tx_pin: GPIO23 # CAN HIGH YELLOW rx_pin: GPIO22 # CAN LOW LIGHT-YELLOW can_id: 100 bit_rate: 250KBPS on_frame: # Напруга комірок - can_id: 0x02098001 ... ... ... ################################################### # Порт PCS (500KBPS), внутрішній CAN на ESP32_CAN # ################################################### - platform: esp32_can id: pcs_can tx_pin: GPIO05 # CAN HIGH BLUE rx_pin: GPIO04 # CAN LOW LIGHT-BLUE can_id: 200 bit_rate: 500KBPS on_frame: # Параметри заряду/розряду аккумулятора - can_id: 0x351 ... ... Thank you for your answers.

Thank you, I understand. But in my case it is not so. My inverter does not support working with BMS. Only manual settings.

Hi. Please tell me how you change the voltage.

Hi. You don't know how to change the polling interval. I think 1 second is too much.

Hi. I started to get it. There really is a CAN module needed between the ESP and the battery.

You probably forgot to say in the description that there should be a module like TJA1050 or SN65HVD230 between the ESP and the Battery? Link https://esphome.io/components/canbus/esp32_can.html

Hi ZS1SCI. I tried to use your development from github, but unfortunately I couldn't get data from the battery. From the description here and on github I made this circuit. Maybe it's not correct? PS. I have only one battery, but I'm not sure if that's the reason.