Hopefully this is a minor change to mqtt.h connect call - see upstream docs at https://pubsubclient.knolleary.net/api#connect to add in some extra parameters

if (mqtt_client.connect(clientId.c_str(),myConfig.mqtt_username,myConfig.mqtt_password)) {

Possibly look at the way tasmota does it? they have (for example)
tele/tasmota_id/LWT Online which reverts to
tele/tasmota_id/LWT Offline when no heartbeat / keepalive detected -- this allows Home Assistant to mark the sensor as unavailable (https://www.home-assistant.io/docs/mqtt/birth_will/ for docs)

I'm getting these errors nonstop in home assistant logs

2023-09-02 13:58:25.589 ERROR (MainThread) [homeassistant.components.mqtt.models] Exception raised when updating state of sensor.epever_solar_monitor_battery_temperature_2, topic: 'solar/status' with payload: b'{"batt_volt":"Normal","batt_temp":"Normal","charger_mode":"Float"}'
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 591, in state
    numerical_value = int(value)
                      ^^^^^^^^^^
ValueError: invalid literal for int() with base 10: 'Normal'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/mqtt/models.py", line 270, in process_write_state_requests
    entity.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 746, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 808, in _async_write_ha_state
    state = self._stringify_state(available)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 752, in _stringify_state
    if (state := self.state) is None:
                 ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 595, in state
    raise ValueError(
ValueError: Sensor sensor.epever_solar_monitor_battery_temperature_2 has device class 'temperature', state class 'None' unit 'C' and suggested precision 'None' thus indicating it has a numeric value; however, it has the non-numeric value: 'Normal' (<class 'str'>)
2023-09-02 13:58:25.599 ERROR (MainThread) [homeassistant.components.mqtt.models] Exception raised when updating state of sensor.epever_solar_monitor_battery_temperature, topic: 'solar/status' with payload: b'{"batt_volt":"Normal","batt_temp":"Normal","charger_mode":"Float"}'
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 591, in state
    numerical_value = int(value)
                      ^^^^^^^^^^
ValueError: invalid literal for int() with base 10: 'Normal'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/mqtt/models.py", line 270, in process_write_state_requests
    entity.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 746, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 808, in _async_write_ha_state
    state = self._stringify_state(available)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 752, in _stringify_state
    if (state := self.state) is None:
                 ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 595, in state
    raise ValueError(
ValueError: Sensor sensor.epever_solar_monitor_battery_temperature has device class 'temperature', state class 'None' unit 'C' and suggested precision 'None' thus indicating it has a numeric value; however, it has the non-numeric value: 'Normal' (<class 'str'>)

Once dark the device stops reporting stats but they are reported when using the eperver wifibox01

No about page with info such as version/contact etc
no confirmation when data has been saved for MQTT/influxdb

The code as is gives the above compilation error in Arduino IDE with most recent 2.7.4 ESP8266 library.

Change:
WiFiManager.h to ESPAsyncWifiManager.h and use the library: alanswx/ESPAsyncWiFiManager

Any chance this codebase would run on an esp32?
Thanks!

Hello

will it be possible to set the hostname to "epever" from the gui?

best regards
Niels

There should be a way to set the ID of the device being queried.

has anyone succeeded in adding the sensors to the energy dashboard in home-assistant? None of the sensors are selectable...

I have Load On in the settings but on Live it shows OFF. Also the output is On now. It appears that I need to do On/Off/On
to register the change to On, but if I just do one On it will never turn On and interestingly after On/Off/On the Load status is shown as Off.

I've connected the charge controller included temperature probe to the controller but it's not showing in Home Assistant's data collected by mqtt. Don't know if this is known or not, but it should be supported.

Hi,

thanks for your great development.

Would it be possible to add an option under the settings tab, where you can specify how often the GUI/InfluxDB/MQTT request and send new data in seconds?

That would be awesome :)

I see the pre-compiled files and I see the src/RS485-WiFi-EPEver.ino.
How can I compile the .ino in the Arduino IDE? I'd like to make one or two tweaks...

Regards, M

No live data, no historical data, but load switch works. Any hints how to debug? (not sure if it relates to #6, as ther is no sun right now)

Heya!

I've tried to connect to HiveMQ today, however it seems that TLS doesn't seem to be supported.
Would it be possible to add this feature?

Thanks!

Heya!

I tested my adapter out today and discovered that the "Reboot" function on the Settings page doesn't properly reconnect to the Epever. I had to un- and replug it to make it read values again.
It may also be an issue with enabling MQTT, as I've tested it out a lot and (at least seemingly) disabling MQTT helped to make it reconnect faster or more reliably after a reboot, but I can't tell for sure as I haven't specifically tested this behavior.

the IP address that shows up 192.168 4.*** is wrong for my network, I cant connect to it. How to change network IP for my network 192.168.1.****?

[enhancement - danger of overcommitting myself] - Would you be interested in having a checkbox later so that if MQTT was enabled it could also publish the magic incantation so that it showed up in Home Assistant? ie https://www.home-assistant.io/docs/mqtt/discovery/

Hello,

thanks for this great project. I have ESP8266 NodeMcu RX/TX pins connected to MAX485 module whithout RE and DE pins. Everything is fine except I cant see ambient temp value. What I can do to read ambient temperature? Temp sensor is connected to controller and Solar Station Monitor can read values. Thank you.

Peter

Hi,

thanks for your amazing project.
Using MQTT with iobroker many bad name entries, please see screenshot.

Hey Colin, thanks for the quick delivery.
I got everything set up and I wonder why all values are "0".

Seems there is no connection to my Epever Controller.
Tried the same connection values (Baudrate and ID) on my PC with a RS to USB-Dongle and it worked.

Any hints?