created python heater to contron the hln heater

systems/brain/services/heater.nix

@@ -0,0 +1,33 @@
+{
+  pkgs,
+  inputs,
+  ...
+}:
+{
+  networking.firewall.allowedTCPPorts = [ 8124 ];
+
+  systemd.services.heater-api = {
+    description = "Tuya Heater Control API";
+    after = [ "network.target" ];
+    wantedBy = [ "multi-user.target" ];
+
+      environment = {
+        PYTHONPATH = "${inputs.self}/";
+      };
+
+    serviceConfig = {
+      Type = "simple";
+      ExecStart = "${pkgs.my_python}/bin/python -m python.heater.main --host 0.0.0.0 --port 8124";
+      EnvironmentFile = "/etc/heater.env";
+      Restart = "on-failure";
+      RestartSec = "5s";
+      StandardOutput = "journal";
+      StandardError = "journal";
+      NoNewPrivileges = true;
+      ProtectSystem = "strict";
+      ProtectHome = "read-only";
+      PrivateTmp = true;
+      ReadOnlyPaths = [ "${inputs.self}" ];
+    };
+  };
+}

systems/brain/services/home_assistant.nix

@@ -22,6 +22,7 @@
             victron_modbuss = "!include ${./home_assistant/victron_modbuss.yaml}";
             battery_sensors = "!include ${./home_assistant/battery_sensors.yaml}";
             gps_location = "!include ${./home_assistant/gps_location.yaml}";
+            heater = "!include ${./home_assistant/heater.yaml}";
             van_weather = "!include ${./home_assistant/van_weather_template.yaml}";
           };
         };
@@ -71,6 +72,7 @@
           pymetno # for met.no weather
           uiprotect # for ubiquiti integration
           unifi-discovery # for ubiquiti integration
+          jsonpath # for rest sensors
         ];
       extraComponents = [ "isal" ];
       customComponents = with pkgs.home-assistant-custom-components; [

systems/brain/services/home_assistant/heater.yaml

@@ -0,0 +1,41 @@
+rest:
+  - resource: http://localhost:8124/status
+    scan_interval: 30
+    sensor:
+      - name: "Heater Setpoint"
+        unique_id: heater_setpoint
+        value_template: "{{ value_json.setpoint }}"
+        unit_of_measurement: "F"
+        device_class: temperature
+      - name: "Heater State"
+        unique_id: heater_state
+        value_template: "{{ value_json.state }}"
+      - name: "Heater Error Code"
+        unique_id: heater_error_code
+        value_template: "{{ value_json.error_code }}"
+    binary_sensor:
+      - name: "Heater Power"
+        unique_id: heater_power
+        value_template: "{{ value_json.power }}"
+        device_class: running
+
+rest_command:
+  heater_on:
+    url: http://localhost:8124/on
+    method: POST
+  heater_off:
+    url: http://localhost:8124/off
+    method: POST
+  heater_toggle:
+    url: http://localhost:8124/toggle
+    method: POST
+
+template:
+  - switch:
+      - unique_id: heater_switch
+        name: Heater
+        state: "{{ is_state('binary_sensor.heater_power', 'on') }}"
+        turn_on:
+          - action: rest_command.heater_on
+        turn_off:
+          - action: rest_command.heater_off