No-code, plug-and-play monitoring for your heat pump - Air Source Heat Pumps (ASHPs)

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sun, 27 Jul 2025 14:10:33 +0000

To update an ESP device using ESPHome in Home Assistant, you have several methods depending on how your device is set up:

## Through Home Assistant UI (Easiest Method)

1. **Navigate to ESPHome Dashboard**
- Go to Settings → Add-ons → ESPHome → Open Web UI

1. **Update via the Dashboard**
- Find your device in the ESPHome dashboard
- Click the three dots menu next to your device
- Select “Install” or “Update”
- Choose “Wirelessly” if the device is already connected to your network

If your ESP device is already running ESPHome and connected to WiFi:

1. **Make your configuration changes** in the YAML file
2. Use the “Install” button in the web interface and select “Wirelessly”

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sun, 27 Jul 2025 13:51:24 +0000

It is in the ESPHome settings, click on the device and edit and then add the new code. then do an OTA update

RE: No-code, plug-and-play monitoring for your heat pump

benson — Sun, 27 Jul 2025 13:34:27 +0000

If there any more sensors that are holding registers that you would like to have a switch for let me know, it is pretty easy to create. Might be worth reaching out to the creator and see if he will update the yaml. It is a cool little family project.

Thanks so much for having a look! Only slight problem is, I have no idea where to access the code for the controller, and how to change it 😆 . Is this all in home assistant somewhere?

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sun, 27 Jul 2025 12:12:24 +0000

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sun, 27 Jul 2025 12:07:25 +0000

I think I may have found it, it looks like it is holding register 5 bit number 5, which means you should be able to read and write to it but it is only in there as a binary sensor not a switch. If you replace the switch portion of heatpump.yaml this should give you the switch. Obvs back up before changing lol!!

switch:
  - platform: factory_reset
    name: Restart with Factory Default Settings
  # Register: 0 -> Bit 2
  - platform: modbus_controller
    modbus_controller_id: "${devicename}"
    name: "${entity_prefix} Power DHW T5S"
    id: "${devicename}_power_dhw_t5s"
    register_type: holding
    entity_category: config
    address: 0x0
    bitmask: 0x4
  - platform: modbus_controller
    modbus_controller_id: "${devicename}"
    name: "${entity_prefix} Function Setting Holiday Away"
    id: "${devicename}_function_setting_holiday_away_switch"
    register_type: holding
    address: 0x5
    bitmask: 0x20  # Bit 5
    icon: mdi:airplane
  # Register: 5 -> Bit 12
  - platform: modbus_controller
    modbus_controller_id: "${devicename}"
    name: "${entity_prefix} Weather Compensation Zone 1"
    id: "${devicename}_weather_compensation_zone_1"
    register_type: holding
    entity_category: config
    address: 0x5
    bitmask: 0x1000
  # Register: 5 -> Bit 13
  - platform: modbus_controller
    modbus_controller_id: "${devicename}"
    name: "${entity_prefix} Weather Compensation Zone 2"
    id: "${devicename}_weather_compensation_zone_2"
    register_type: holding
    entity_category: config
    address: 0x5
    bitmask: 0x2000

  # Register: 7
  - platform: modbus_controller
    modbus_controller_id: "${devicename}"
    name: "${entity_prefix} Forced Water Tank Heating On/Off"
    id: "${devicename}_forced_water_tank_heating_on_off"
    icon: mdi:fire-alert
    address: 0x7
    register_type: holding
    entity_category: config
    write_lambda: |-
      uint16_t value = 0;

      if (x == 1) {
        ESP_LOGI("main", "Set forced water tank heating ON");
        value = 1;
      } else {
        ESP_LOGI("main", "Set forced water tank heating OFF");
        value = 2;
      }

      esphome::modbus_controller::ModbusCommandItem set_payload_command = esphome::modbus_controller::ModbusCommandItem::create_write_single_command(${devicename}, 0x7, value);
      ${devicename}->queue_command(set_payload_command);

      return {};

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sat, 26 Jul 2025 15:49:21 +0000

https://youtu.be/5rFWcukwCzU?si=QPCph-pzOf5ehnAL
https://tailscale.com

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sat, 26 Jul 2025 14:41:25 +0000

Tailscale is kind of like a vpn connection (on steroids) you down load it onto each device you want in your tailnet load the integration into home assistant and you now have secure access to your network and home assistant from anywhere in the world. And as a Yorkshireman the best thing is it is free!

RE: No-code, plug-and-play monitoring for your heat pump

benson — Sat, 26 Jul 2025 13:42:28 +0000

@benson I use tailscale very easy to setup and rock solid.

Is that a workaround whereby you need your own domain? I did have a look at that option and thought in fairness I don't mind paying what is a comparatively small amount to support the development of HA. Plus, I guess I'd have to pay to get a domain anyway? Granted it would likely be much less than the subscription.

RE: No-code, plug-and-play monitoring for your heat pump

benson — Sat, 26 Jul 2025 13:38:19 +0000

@grantmethestrength thanks! I did use that entity search function a lot when sorting which ones I wanted, albeit the midea nomenclature is rather confusing. I think that "enable heating" one basically means actual heating mode on the ASHP rather than turning the central heating on. Not quite sure what the holiday home setting does but it is the away one I need and that only appears to be listed as a sensor. I might email him and ask.

RE: No-code, plug-and-play monitoring for your heat pump

Grantmethestrength — Sat, 26 Jul 2025 13:38:18 +0000

@benson I use tailscale very easy to setup and rock solid.