MG SmartHub almost works

[bec-aus]

Hi, I have imported this OCPP package into Home Assistant and used it with my MG Charge Hub. It is version 1.0.0.0.7b107_MG. Everything displays well, and the Reset button works, however I can't get it to update any settings. The 2 examples I've tried are:

• Setting the charging power - I simply can't see what to update to do this (sliding the Maximum current slider doesn't seem to do anything)

• Remotely stopping Charging. Just about anything I try, like changing the charge control toggle gets an error that says: 'Fail to call service homeassistant/turn_off. ProtocolError: Payload for Action is incomplete, {'cause': "'transactionID' is a required property"}

This error message may be from testing some other setting, but ProtocolError: Payload for Action is incomplete, {'cause': "'transactionID' is a required property"} seems to be common to each thing I have tried.

Please advise either any other testing that would be helpful, or how I can remotely set the charging current. (Setting the current through the MG supplied web page does work, but I can't figure out how to automate it to maximise my solar consumption) I have created a helper that tells me the current I want to tell the charger to supply.

[callifo]

I've got a Chargehub and haven't seen the same issue. That's not to say the charger is flawless, it has a lot of software bugs that I have been annoying MG to fix.

Your firmware is old, get this one of this page, https://mgmotor.com.au/charge-hub-support/
Run the update. If you dont see the firmware version reflected in the webpage, flash it again. Mine took a few goes.

Here is a snip of my settings, so if anything looks vastly different.

[philkernick]

Was there anything else you needed to configure in your automation to get it to start charging?
Mine will start charging and then 4 seconds later report SuspendedEVSE. If I adjust the charging current, it will start charging again for 4 seconds before stopping.

It did work perfectly with ChargeHQ, but I have to migrate away as they are turning off the service in September 2026.

[bec-aus]

Do you have the latest firmware on your charger? I think it is: 1.0.8b1.0.8. It fixed a problem where charging the car would do pretty much what you describe. I must admit sofar I haven't thought about moving on from ChargeHQ. And it neatly solved a problem I had with running my own OCPP server so haven't thought about it for some time.   My EV is at my daughter's at present so can't test any ideas until it returns. Brian

…

On 20/07/2026 6:06 pm, philkernick wrote: Was there anything else you needed to configure in your automation to get it to start charging? Mine will start charging and then 4 seconds later report SuspendedEVSE. If I adjust the charging current, it will start charging again for 4 seconds before stopping. It did work perfectly with ChargeHQ, but I have to migrate away as they are turning off the service in September 2026. — Reply to this email directly, view it on GitHub <#1130?email_source=notifications&email_token=BDFZW5KCVAPJRIHRASMLTJL5FXHIBA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNZWHE3TMMZTUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVRTG633UMVZF6Y3MNFRWW#discussioncomment-17697633>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BDFZW5L4BNKPKKCQGJKJ6W35FXHIBAVCNFSNUABHKJSXA33TNF2G64TZHMZTGNRQGU2DKMJVHNCGS43DOVZXG2LPNY5TMNBZHA4DKONBOYBA>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/BDFZW5LAZM7UKK3ZXTVVGQD5FXHIBA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNZWHE3TMMZTUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android <https://github.com/notifications/mobile/android/BDFZW5ITVJ7VPPU5MTBI6S35FXHIBA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNZWHE3TMMZTUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[callifo]

I'm still running latest on mine, personally I thought the latest 1.0.8x was a step backwards, on mine at least you can't suspend the Ev charging by switching to 0A max anymore. It kept sending me a rejected message if I try and restart the charging from SuspendedEVSE state. To work around I need to stop the charging and then start it again.

Asked MG Australia how to downgrade but they said not possible and they've basically now abandoned the unit. So it still works ok but I've got a lot of work arounds in automations to address software defects.

[philkernick]

I'll do the firmware update today and hopefully that will get me a little further. Can you please share your workarounds (publicly or privately)?

[callifo]

Away from home at the moment, will when I get back

[callifo]

There is a lot of specific stuff for my instance so I hope its useful. A lot of the monitoring is done by an (external) currrent clamp, so you will need to substitute that.

- id: ev_charger_monitor_status
  alias: 'EV Charger Monitor Status'
  mode: queued
  initial_state: 'on'
  trace:
      stored_traces: 20
  trigger:
    - trigger: time_pattern
      minutes: '/10'
      id: 'time'
    - trigger: state
      entity_id: sensor.charger_reconnects
      to: 
      id: 'reconnect'
    - trigger: numeric_state
      entity_id: input_number.ev_charger_reconnect_count
      above: 8
      id: 'reboot'
    - trigger: time
      at: '00:01:00'
      id: 'nightly-reboot'
    - trigger: homeassistant
      event: start
      id: 'start'
    - trigger: homeassistant
      event: shutdown
      id: 'shutdown'
    - trigger: template
      value_template: "{{ is_state('switch.charger_charge_control','off') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) and not (is_state('sensor.charger_status_connector','SuspendedEV')) }}"
      for: '00:10:00'
      id: 'stuck off'
    - trigger: template
      value_template: "{{ is_state('switch.charger_charge_control','on') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) and (states('number.charger_maximum_current') | float(default=0) == 0) }}"
      for: '00:02:00'
      id: 'stuck on'
    - trigger: template # Charge rate doesnt align with current setting (but not in the last 1.5%)
      value_template: "{{ is_state('switch.charger_charge_control','on') and (6 <= states('number.charger_maximum_current') | float(default=0) <= 100) and ((-10000.0 <= (states('sensor.ev_charger_current_consumption_alignment') | float(default=0)) < -260.0) or (260.0 < (states('sensor.ev_charger_current_consumption_alignment') | float(default=0)) <= 10000.0)) and (400 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) and (is_state('sensor.charger_car_connected','Other') or (is_state('sensor.charger_car_connected','MG4') and states('number.mg4_target_soc') | float(default=80) > states('sensor.mg4_soc_stateful') | float(default=80))) }}"
      for: '00:02:00'
      id: 'unaligned'
    - trigger: template # Car not accepting charge (but not in the last 1.5%) (not applicable to non-MG)
      value_template: "{{ is_state('switch.charger_charge_control','on') and (6 <= states('number.charger_maximum_current') | float(default=0) <= 100) and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 200) and (is_state('sensor.charger_car_connected','MG4') and states('number.mg4_target_soc') | float(default=80) > states('sensor.mg4_soc_stateful') | float(default=80)) }}"
      for: '00:02:00'
      id: 'car_reject'
    - trigger: template # Looks like its charging, but consuming no power (but not in the last 1.5%)
      value_template: "{{ is_state('switch.charger_charge_control','on') and is_state('sensor.charger_status_connector','Charging') and (6 <= states('number.charger_maximum_current') | float(default=0) <= 100) and (0 <= states('sensor.ev_charger_current_consumption') | float(default=0) <= 20) and (is_state('sensor.charger_car_connected','Other') or (is_state('sensor.charger_car_connected','MG4') and states('number.mg4_target_soc') | float(default=80) > states('sensor.mg4_soc_stateful') | float(default=80))) }}"
      for: '00:03:00'
      id: 'not_charging'
    - trigger: template # Charger not responding
      value_template: "{{ 5000 < (states('sensor.now_timestamp_second') | int(default=0) - as_timestamp(states('sensor.charger_heartbeat'),'') | int(default=0)) < 315360000 }}"
      for: '01:01:00'
      id: 'not_responding'
    - trigger: template
      value_template: "{{ is_state('switch.charger_charge_control','off') and is_state('binary_sensor.charger_status_connected','on') and is_state('sensor.charger_status_connector','Finishing') }}"
      for: '00:10:00'
      id: 'not_available'
    - trigger: state # Charger rejecting start requests
      entity_id: binary_sensor.ev_charger_reject_transaction
      from: 'off'
      to: 'on'
      for: '00:00:10'
      id: 'trans_reject'
  condition:
    - condition: state
      entity_id: automation.ev_charger_handler
      state: 'on'
  action:
    - choose:
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'time' }}"
          sequence:
            - action: input_number.set_value
              data:
                entity_id: input_number.ev_charger_reconnect_count
                value: 0
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'start' }}"
          sequence:
            - action: input_number.set_value
              data:
                entity_id: input_number.ev_charger_reconnect_count
                value: 0
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'reconnect' }}"
          sequence:
            - action: input_number.increment
              entity_id: input_number.ev_charger_reconnect_count
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'reboot' }}"
          sequence:
            - action: >
                {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                script.turn_on
                {% else %}
                script.do_nothing
                {% endif %}
              target:
                entity_id: script.send_push_message
              data:
                variables:
                  to_user: nick
                  urgent: false
                  message: 'EV Charger is stuck in a reconnect loop, attempting reboot.'
            - action: button.press
              target:
                entity_id: button.charger_reset
            - action: input_number.set_value
              data:
                entity_id: input_number.ev_charger_reconnect_count
                value: 0
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'nightly-reboot' }}"
            - condition: template
              value_template: "{{ 6 < ((as_timestamp(now()) | int(default=0) - as_timestamp(states('sensor.uptime')) | int(default=0))/3600) < 1000000 }}"
            - condition: state
              entity_id: input_boolean.schedule_reboot
              state: 'off'
          sequence:
            - action: button.press
              target:
                entity_id: button.charger_reset
            - action: input_number.set_value
              data:
                entity_id: input_number.ev_charger_reconnect_count
                value: 0
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'shutdown' }}"
          sequence:
            - action: button.press
              target:
                entity_id: button.charger_reset
            - action: input_number.set_value
              data:
                entity_id: input_number.ev_charger_reconnect_count
                value: 0
        - conditions:
            - condition: template
              value_template: "{{ 'stuck' in trigger.id }}"
          sequence:
            - repeat:
                while:
                  - condition: or
                    conditions:
                      - condition: template
                        value_template: "{{ is_state('switch.charger_charge_control','off') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) }}"
                      - condition: template
                        value_template: "{{ is_state('switch.charger_charge_control','on') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) and (states('number.charger_maximum_current') | float(default=0) == 0) }}"
                sequence:
                  - choose:
                      - conditions:
                          - condition: template
                            value_template: "{{ is_state('switch.charger_charge_control','off') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) }}"
                        sequence:
                          - action: >
                              {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                              script.turn_on
                              {% else %}
                              script.do_nothing
                              {% endif %}
                            target:
                              entity_id: script.send_push_message
                            data:
                              variables:
                                to_user: nick
                                urgent: false
                                message: "EV Charger was showing stuck off but still charging. Setting to charger to 0A"
                          - action: switch.turn_off
                            entity_id: switch.charger_charge_control
                          - delay: '00:00:05'                      
                          - action: number.set_value
                            target:
                              entity_id: number.charger_maximum_current
                            data:
                              value: 0
                      - conditions:
                          - condition: template
                            value_template: "{{ is_state('switch.charger_charge_control','on') and (20 < states('sensor.ev_charger_current_consumption') | float(default=0) < 10000) and (states('number.charger_maximum_current') | float(default=0) == 0) }}"
                        sequence:
                          - action: number.set_value
                            target:
                              entity_id: number.charger_maximum_current
                            data:
                              value: 6
                          - action: >
                              {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                              script.turn_on
                              {% else %}
                              script.do_nothing
                              {% endif %}
                            target:
                              entity_id: script.send_push_message
                            data:
                              variables:
                                to_user: nick
                                urgent: false
                                message: "EV Charger was showing as on, with 0A max set, but still charging the car. Charger has been set to 6A."
                          - delay: '00:00:30'
                  - delay: '00:30:00'
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'unaligned' }}"
          sequence:
            - repeat:
                while:
                  - condition: template
                    value_template: "{{ is_state('switch.charger_charge_control','on') and (6 <= states('number.charger_maximum_current') | float(default=0) <= 100) and ((-10000.0 <= (states('sensor.ev_charger_current_consumption_alignment') | float(default=0)) < -260.0) or (260.0 < (states('sensor.ev_charger_current_consumption_alignment') | float(default=0)) <= 10000.0)) }}"
                sequence:
                  - action: >
                      {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                      script.turn_on
                      {% else %}
                      script.do_nothing
                      {% endif %}
                    target:
                      entity_id: script.send_push_message
                    data:
                      variables:
                        to_user: nick
                        urgent: false
                        message: "EV Charger was set to {{ states('number.charger_maximum_current') | int(default=6) }}A but power consumption unaligned by {{ states('sensor.ev_charger_current_consumption_alignment') | float(default=0) }}W."
                  - action: number.set_value
                    target:
                      entity_id: number.charger_maximum_current
                    data:
                      value: >
                        {% if states('number.charger_maximum_current') | int(default=0) == 6 %}
                        7
                        {% elif -100 <= states('sensor.ev_charger_current_amps') | int(default=0) < 0 and (-100 <= (states('number.charger_maximum_current') | int(default=0) + states('sensor.ev_charger_current_amps') | int(default=0)) <= 6) %}
                        6
                        {% elif -100 <= states('sensor.ev_charger_current_amps') | int(default=0) < 0 and (6 < (states('number.charger_maximum_current') | int(default=0) + states('sensor.ev_charger_current_amps') | int(default=0)) <= 32) %}
                        {{ (states('number.charger_maximum_current') | int(default=0) + states('sensor.ev_charger_current_amps') | int(default=0)) }}
                        {% else %}
                        {{ states('number.charger_maximum_current') | int(default=0) - 1 }}
                        {% endif %}
                  - delay: '00:01:00'
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'car_reject' }}"
          sequence:
            - action: >
                {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                script.turn_on
                {% else %}
                script.do_nothing
                {% endif %}
              target:
                entity_id: script.send_push_message
              data:
                variables:
                  to_user: nick
                  urgent: false
                  message: "EV Charger was set to {{ states('number.charger_maximum_current') | int(default=6) }}A car is not charging and only drawing {{ states('sensor.ev_charger_current_consumption') | float(default=0) }}W "
            - action: switch.turn_off
              entity_id: switch.charger_charge_control
            - delay: '00:00:10'
            - wait_template: "{{ is_state('switch.charger_charge_control','off') }}"
              timeout: '00:00:20'
              continue_on_timeout: 'false'
            - action: number.set_value
              target:
                entity_id: number.charger_maximum_current
              data:
                value: 6
            - delay: '00:00:03'
            - wait_template: "{{ is_state('switch.charger_charge_control','off') and (states('number.charger_maximum_current') | float(default=0) == 6) }}"
              timeout: '00:00:20'
              continue_on_timeout: 'false'
            - action: switch.turn_on
              entity_id: switch.charger_charge_control
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'not_charging' }}"
          sequence:
            - action: switch.turn_off
              entity_id: switch.charger_charge_control
            - action: >
                {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                script.turn_on
                {% else %}
                script.do_nothing
                {% endif %}
              target:
                entity_id: script.send_push_message
              data:
                variables:
                  to_user: nick
                  urgent: false
                  message: "EV Charger showed it was charging, but providing 0W to car. Charger will be reset shortly."
            - delay: '00:00:10'
            - action: button.press
              target:
                entity_id: button.charger_reset
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'not_responding' }}"
          sequence:
            - action: >
                {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                script.turn_on
                {% else %}
                script.do_nothing
                {% endif %}
              target:
                entity_id: script.send_push_message
              data:
                variables:
                  to_user: nick
                  urgent: false
                  message: "EV Charger has stopped responding, OCPP Heartbeat has not updated in at least an hour. Charger will reset shortly."
            - action: button.press
              target:
                entity_id: button.charger_reset
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'not_available' }}"
          sequence:
            - action: switch.turn_off
              target:
                entity_id: switch.charger_availability
            - delay: '00:00:20'
            - wait_template: "{{ is_state('switch.charger_availability','off') }}"
              timeout: '00:01:00'
              continue_on_timeout: 'true'
            - action: switch.turn_on
              target:
                entity_id: switch.charger_availability
        - conditions:
            - condition: template
              value_template: "{{ trigger.id == 'trans_reject' }}"
          sequence:
            - action: >
                {% if is_state('input_boolean.automation_ev_charger_handler_debug','on') %}
                script.turn_on
                {% else %}
                script.do_nothing
                {% endif %}
              target:
                entity_id: script.send_push_message
              data:
                variables:
                  to_user: nick
                  urgent: false
                  message: "EV Charger has rejected requests to start charging. Charger will reset shortly."
            - action: button.press
              target:
                entity_id: button.charger_reset
      default:
        - action: script.do_nothing