Can't enable RS485

[clydebarrow]

I have a Jakiper 48V100 battery with Pace BMS. When I connect to it with pbmstools I can see all the data, but the CANBus and RS485 protocol selection drop-downs are empty. Clicking Read shows a "successful" message, but still does not populate the list, and there is a a red "interruption" message in the status bar lower right.

Any ideas? Is there more than one variation of the pbmstools software?

I have the password, and I have tried th Jakiper tool, but it has no selection for the RS485 protocol.

[syssi]

Could you try to talk to your manufacturer and ask about another firmware with RS485 support for your battery bank? This is just an idea. I don't know how to make sure RS485 is supported or not.

[TreshanAyesh]

Hi, we successfully connected and read data from a battery to the serial monitor. But there is an issue with mqtt not connecting. Does it have something to do with home assistant? Can we use a mqtt broker to connect to node red?

[syssi]

The mqtt component of ESPHome is able talk to any MQTT broker and can be used with any Home Automation software / it's not limited to Home Assistant. Could you attach a USB cable to your ESP board and provide a ESPHome log? It will supply all needed details whats going on.

[TreshanAyesh]

This is the error we get ehrn connecting to mqtt. the logger level is set to very verbose. The mqtt component is asking for a IP but we are not much sure about this ip

[syssi]

Could you provide your YAML configuration too? It looks like the configuration of the mqtt section is wrong.

[TreshanAyesh]

this is the yaml file we use to test the mqtt alone now

substitutions:
  name: pace-bms
  device_description: "Monitor and control a PACE BMS via RS485 (Modbus)"
  tx_pin: GPIO16
  rx_pin: GPIO17

esphome:
  name: ${name}
  comment: ${device_description}
  project:
    name: "syssi.esphome-pace-bms"
    version: 1.0.0

esp32:
  board: esp32doit-devkit-v1
  framework:
    type: esp-idf

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

logger:
  level: DEBUG

mqtt:
  broker: https://test.mosquitto.org
  port: 1883
  username: !secret mqtt_username
  password: !secret mqtt_password

sensor:
  - platform: adc
    id: adc_sensor_1
    name: ADC1 Value
    pin: GPIO34
    update_interval: 5s

web_server:
  port: "80"

[syssi]

Please pass the FQDN or IP address here:

mqtt:
  broker: 192.168.1.1
  port: 1883
  username: !secret mqtt_username
  password: !secret mqtt_password

MQTT-URLs aren't supported here.