chore(deps-dev): Bump @eslint/js from 9.38.0 to 9.39.0

Bumps [@eslint/js](https://github.com/eslint/eslint/tree/HEAD/packages/js) from 9.38.0 to 9.39.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Commits](https://github.com/eslint/eslint/commits/v9.39.0/packages/js)

---
updated-dependencies:
- dependency-name: "@eslint/js"
  dependency-version: 9.39.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.all-contributorsrc

@@ -0,0 +1,22 @@
+{
+  "files": ["README.md"],
+  "imageSize": 100,
+  "commit": false,
+  "commitType": "docs",
+  "commitConvention": "angular",
+  "contributors": [
+    {
+      "login": "remiolivier",
+      "name": "remiolivier",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1379047?v=4",
+      "profile": "https://github.com/remiolivier",
+      "contributions": ["code"]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "skipCi": true,
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "projectName": "mysa2mqtt",
+  "projectOwner": "bourquep"
+}

.github/dependabot.yml

@@ -8,7 +8,7 @@ updates:
   - package-ecosystem: 'npm' # See documentation for possible values
     directory: '/' # Location of package manifests
     schedule:
-      interval: 'daily'
+      interval: 'weekly'
     labels:
       - 'dependencies'
     commit-message:

.github/workflows/ci.yml

@@ -63,6 +63,8 @@ jobs:
     if: github.event_name == 'workflow_dispatch'
     needs: build
     runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.version.outputs.version }}
     permissions:
       contents: write # to be able to publish a GitHub release
       issues: write # to be able to comment on released issues

.prettierignore

@@ -0,0 +1 @@
+README.md

README.md

@@ -1,6 +1,13 @@
 # mysa2mqtt
 
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
+
 [![NPM Version](https://img.shields.io/npm/v/mysa2mqtt)](https://www.npmjs.com/package/mysa2mqtt)
+[![Docker Hub](https://img.shields.io/docker/pulls/bourquep/mysa2mqtt)](https://hub.docker.com/r/bourquep/mysa2mqtt)
 [![CodeQL](https://github.com/bourquep/mysa2mqtt/actions/workflows/github-code-scanning/codeql/badge.svg)](https://github.com/bourquep/mysa2mqtt/actions/workflows/github-code-scanning/codeql)
 [![CI: lint, build and release](https://github.com/bourquep/mysa2mqtt/actions/workflows/ci.yml/badge.svg)](https://github.com/bourquep/mysa2mqtt/actions/workflows/ci.yml)
 
@@ -17,13 +24,13 @@ home automation platforms.
 
 ## Supported hardware
 
-| Model Number | Description                                               | Supported                                                        |
+| Model Number | Description                                               | Supported                                                            |
-| ------------ | --------------------------------------------------------- | ---------------------------------------------------------------- |
+| ------------ | --------------------------------------------------------- | -------------------------------------------------------------------- |
-| `BB-V1-X`    | Mysa Smart Thermostat for Electric Baseboard Heaters V1   | ✅ Tested and working                                            |
+| `BB-V1-X`    | Mysa Smart Thermostat for Electric Baseboard Heaters V1   | ✅ Tested and working                                                |
-| `BB-V2-X`    | Mysa Smart Thermostat for Electric Baseboard Heaters V2   | ⚠️ Should work but not tested                                    |
+| `BB-V2-X`    | Mysa Smart Thermostat for Electric Baseboard Heaters V2   | ⚠️ Partially working, in progress                                    |
-| `BB-V2-X-L`  | Mysa Smart Thermostat LITE for Electric Baseboard Heaters | ⚠️ Should work but not tested; does not report power consumption |
+| `BB-V2-X-L`  | Mysa Smart Thermostat LITE for Electric Baseboard Heaters | ⚠️ Partially working, in progress; does not report power consumption |
-| `unknown`    | Mysa Smart Thermostat for Electric In-Floor Heating       | ⚠️ Should work but not tested                                    |
+| `unknown`    | Mysa Smart Thermostat for Electric In-Floor Heating       | ⚠️ Should work but not tested                                        |
-| `AC-V1-X`    | Mysa Smart Thermostat for Mini-Split Heat Pumps & AC      | 🚫 Not supported (yet)                                           |
+| `AC-V1-X`    | Mysa Smart Thermostat for Mini-Split Heat Pumps & AC      | 🚫 Not supported (yet)                                               |
 
 ## Disclaimer
 
@@ -117,6 +124,11 @@ For development or custom modifications:
 The application can be configured using either command-line arguments or environment variables. Environment variables
 take precedence over command-line defaults.
 
+> [!IMPORTANT]
+> The `M2M_TEMPERATURE_UNIT` option must match Home Assistant's unit system (Settings → General → Unit System)
+> so setpoints and readings are interpreted correctly. If mismatched, climate entities will show incorrect values (e.g.
+> 21°C treated as 21°F) and commands may result in unexpected temperatures.
+
 ### Required Configuration
 
 | CLI Option            | Environment Variable | Description                      |
@@ -144,6 +156,7 @@ take precedence over command-line defaults.
 | `-l, --log-level`         | `M2M_LOG_LEVEL`         | `info`         | Log level: `silent`, `fatal`, `error`, `warn`, `info`, `debug`, `trace` |
 | `-f, --log-format`        | `M2M_LOG_FORMAT`        | `pretty`       | Log format: `pretty`, `json`                                            |
 | `-s, --mysa-session-file` | `M2M_MYSA_SESSION_FILE` | `session.json` | Path to Mysa session file                                               |
+| `-t, --temperature-unit`  | `M2M_TEMPERATURE_UNIT`  | `C`            | Temperature unit (`C` = Celsius, `F` = Fahrenheit)                      |
 
 ## Usage Examples
 
@@ -212,13 +225,11 @@ When using Home Assistant, devices will be automatically discovered and appear i
 ### Common Issues
 
 1. **Authentication Failures**
-
    - Verify your Mysa username and password
    - Check if session.json exists and is valid
    - Try deleting session.json to force re-authentication
 
 2. **MQTT Connection Issues**
-
    - Verify MQTT broker hostname and port
    - Check MQTT credentials if authentication is required
    - Ensure the MQTT broker is accessible from your network
@@ -363,7 +374,6 @@ copyright notice and license text in any copy of the software or substantial por
 ## Acknowledgments
 
 - [mysa-js-sdk](https://github.com/bourquep/mysa-js-sdk) - Mysa API client library
-
   - This library would not be possible without the amazing work by [@dlenski](https://github.com/dlenski) in his
     [mysotherm](https://github.com/dlenski/mysotherm) repository. He's the one who reversed-engineered the Mysa MQTT
     protocol which is being used by this library.
@@ -371,3 +381,26 @@ copyright notice and license text in any copy of the software or substantial por
 - [mqtt2ha](https://github.com/bourquep/mqtt2ha) - MQTT to Home Assistant bridge library
 - [Commander.js](https://github.com/tj/commander.js) - Command-line argument parsing
 - [Pino](https://github.com/pinojs/pino) - Fast JSON logger
+
+## Contributors ✨
+
+Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/remiolivier"><img src="https://avatars.githubusercontent.com/u/1379047?v=4?s=100" width="100px;" alt="remiolivier"/><br /><sub><b>remiolivier</b></sub></a><br /><a href="https://github.com/bourquep/mysa2mqtt/commits?author=remiolivier" title="Code">💻</a></td>
+    </tr>
+  </tbody>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification.
+Contributions of any kind welcome!

package.json

@@ -46,29 +46,29 @@
     "build": "tsup"
   },
   "dependencies": {
-    "commander": "14.0.0",
+    "commander": "14.0.1",
-    "dotenv": "16.5.0",
+    "dotenv": "17.2.3",
-    "mqtt2ha": "4.0.0",
+    "mqtt2ha": "4.1.2",
-    "mysa-js-sdk": "1.1.2",
+    "mysa-js-sdk": "2.0.0",
-    "pino": "9.7.0",
+    "pino": "10.1.0",
-    "pino-pretty": "13.0.0"
+    "pino-pretty": "13.1.2"
   },
   "devDependencies": {
     "@commander-js/extra-typings": "14.0.0",
-    "@eslint/js": "9.28.0",
+    "@eslint/js": "9.39.0",
-    "@semantic-release/npm": "12.0.1",
+    "@semantic-release/npm": "13.1.1",
-    "@types/node": "22.15.30",
+    "@types/node": "24.9.2",
-    "conventional-changelog-conventionalcommits": "9.0.0",
+    "conventional-changelog-conventionalcommits": "9.1.0",
-    "eslint": "9.28.0",
+    "eslint": "9.39.0",
-    "eslint-plugin-jsdoc": "50.7.1",
+    "eslint-plugin-jsdoc": "61.1.11",
     "eslint-plugin-tsdoc": "0.4.0",
-    "prettier": "3.5.3",
+    "prettier": "3.6.2",
-    "prettier-plugin-jsdoc": "1.3.2",
+    "prettier-plugin-jsdoc": "1.5.0",
-    "prettier-plugin-organize-imports": "4.1.0",
+    "prettier-plugin-organize-imports": "4.3.0",
-    "semantic-release": "24.2.5",
+    "semantic-release": "25.0.1",
     "tsup": "8.5.0",
-    "tsx": "4.19.4",
+    "tsx": "4.20.6",
-    "typescript": "5.8.3",
+    "typescript": "5.9.3",
-    "typescript-eslint": "8.33.1"
+    "typescript-eslint": "8.46.2"
   }
 }

src/logger.ts

@@ -22,7 +22,7 @@ SOFTWARE.
 */
 
 import { Logger } from 'mqtt2ha';
-import { pino } from 'pino';
+import pino from 'pino';
 
 export class PinoLogger implements Logger {
   constructor(private readonly logger: pino.Logger) {}
@@ -32,7 +32,7 @@ export class PinoLogger implements Logger {
     if (obj) {
       this.logger.debug(obj, message, ...meta);
     } else {
-      this.logger.debug(message, ...meta);
+      this.logger.debug(null, message, ...meta);
     }
   }
 
@@ -41,7 +41,7 @@ export class PinoLogger implements Logger {
     if (obj) {
       this.logger.info(obj, message, ...meta);
     } else {
-      this.logger.info(message, ...meta);
+      this.logger.info(null, message, ...meta);
     }
   }
 
@@ -50,7 +50,7 @@ export class PinoLogger implements Logger {
     if (obj) {
       this.logger.warn(obj, message, ...meta);
     } else {
-      this.logger.warn(message, ...meta);
+      this.logger.warn(null, message, ...meta);
     }
   }
 
@@ -59,7 +59,7 @@ export class PinoLogger implements Logger {
     if (obj) {
       this.logger.error(obj, message, ...meta);
     } else {
-      this.logger.error(message, ...meta);
+      this.logger.error(null, message, ...meta);
     }
   }
 }

src/main.ts

@@ -64,8 +64,24 @@ async function main() {
     await client.login(options.mysaUsername, options.mysaPassword);
   }
 
+  rootLogger.debug('Fetching devices and firmwares...');
   const [devices, firmwares] = await Promise.all([client.getDevices(), client.getDeviceFirmwares()]);
 
+  rootLogger.debug('Fetching serial numbers...');
+  const serialNumbers = new Map<string, string>();
+  for (const [deviceId] of Object.entries(devices.DevicesObj)) {
+    try {
+      const serial = await client.getDeviceSerialNumber(deviceId);
+      if (serial) {
+        serialNumbers.set(deviceId, serial);
+      }
+    } catch (error) {
+      rootLogger.error(error, `Failed to retrieve serial number for device ${deviceId}`);
+    }
+  }
+
+  rootLogger.debug('Initializing MQTT entities...');
+
   const mqttSettings: MqttSettings = {
     host: options.mqttHost,
     port: options.mqttPort,
@@ -82,7 +98,9 @@ async function main() {
         device,
         mqttSettings,
         new PinoLogger(rootLogger.child({ module: 'thermostat', deviceId: device.Id })),
-        firmwares.Firmware[device.Id]
+        firmwares.Firmware[device.Id],
+        serialNumbers.get(device.Id),
+        options.temperatureUnit
       )
   );
 

src/options.ts

@@ -54,7 +54,6 @@ function getPackageVersion(): string {
  *
  * @param value - The value to parse.
  * @returns The parsed integer value.
- * @throws InvalidArgumentError if the value is not a valid integer.
  */
 function parseRequiredInt(value: string) {
   const parsedValue = parseInt(value, 10);
@@ -64,6 +63,8 @@ function parseRequiredInt(value: string) {
   return parsedValue;
 }
 
+export const version = getPackageVersion();
+
 const extraHelpText = `
 Copyright (c) 2025 Pascal Bourque
 Licensed under the MIT License
@@ -72,7 +73,7 @@ Source code and documentation available at: https://github.com/bourquep/mysa2mqt
 `;
 
 export const options = new Command('mysa2mqtt')
-  .version(getPackageVersion())
+  .version(version)
   .description('Expose Mysa smart thermostats to home automation platforms via MQTT.')
   .addHelpText('afterAll', extraHelpText)
   .addOption(
@@ -142,5 +143,12 @@ export const options = new Command('mysa2mqtt')
       .default('mysa2mqtt')
       .helpGroup('MQTT')
   )
+  .addOption(
+    new Option('--temperature-unit <temperatureUnit>', 'temperature unit (C or F)')
+      .env('M2M_TEMPERATURE_UNIT')
+      .choices(['C', 'F'])
+      .default('C')
+      .helpGroup('Configuration')
+  )
   .parse()
   .opts();

src/thermostat.ts

@@ -21,13 +21,25 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
-import { Climate, ClimateAction, DeviceConfiguration, Logger, MqttSettings, Sensor } from 'mqtt2ha';
+import {
+  Climate,
+  ClimateAction,
+  DeviceConfiguration,
+  Logger,
+  MqttSettings,
+  OriginConfiguration,
+  Sensor
+} from 'mqtt2ha';
 import { DeviceBase, FirmwareDevice, MysaApiClient, MysaDeviceMode, StateChange, Status } from 'mysa-js-sdk';
+import { version } from './options';
 
 export class Thermostat {
   private isStarted = false;
   private readonly mqttDevice: DeviceConfiguration;
+  private readonly mqttOrigin: OriginConfiguration;
   private readonly mqttClimate: Climate;
+  private readonly mqttTemperature: Sensor;
+  private readonly mqttHumidity: Sensor;
   private readonly mqttPower: Sensor;
 
   private readonly mysaStatusUpdateHandler = this.handleMysaStatusUpdate.bind(this);
@@ -38,14 +50,25 @@ export class Thermostat {
     public readonly mysaDevice: DeviceBase,
     private readonly mqttSettings: MqttSettings,
     private readonly logger: Logger,
-    public readonly mysaDeviceFirmware?: FirmwareDevice
+    public readonly mysaDeviceFirmware?: FirmwareDevice,
+    public readonly mysaDeviceSerialNumber?: string,
+    public readonly temperatureUnit?: 'C' | 'F'
   ) {
+    const is_celsius = (temperatureUnit ?? 'C') === 'C';
+
     this.mqttDevice = {
       identifiers: mysaDevice.Id,
       name: mysaDevice.Name,
       manufacturer: 'Mysa',
       model: mysaDevice.Model,
-      sw_version: mysaDeviceFirmware?.InstalledVersion
+      sw_version: mysaDeviceFirmware?.InstalledVersion,
+      serial_number: mysaDeviceSerialNumber
+    };
+
+    this.mqttOrigin = {
+      name: 'mysa2mqtt',
+      sw_version: version,
+      support_url: 'https://github.com/bourquep/mysa2mqtt'
     };
 
     this.mqttClimate = new Climate(
@@ -55,14 +78,15 @@ export class Thermostat {
         component: {
           component: 'climate',
           device: this.mqttDevice,
+          origin: this.mqttOrigin,
           unique_id: `mysa_${mysaDevice.Id}_climate`,
           name: 'Thermostat',
           min_temp: mysaDevice.MinSetpoint,
           max_temp: mysaDevice.MaxSetpoint,
           modes: ['off', 'heat'], // TODO: AC
-          precision: 0.1,
+          precision: is_celsius ? 0.1 : 1.0,
-          temp_step: 0.5,
+          temp_step: is_celsius ? 0.5 : 1.0,
-          temperature_unit: 'C', // TODO: Confirm that Mysa always works in C
+          temperature_unit: 'C',
           optimistic: true
         }
       },
@@ -97,20 +121,66 @@ export class Thermostat {
             if (message === '') {
               this.mysaApiClient.setDeviceState(this.mysaDevice.Id, undefined, undefined);
             } else {
-              this.mysaApiClient.setDeviceState(this.mysaDevice.Id, parseFloat(message), undefined);
+              let temperature = parseFloat(message);
+
+              if (!is_celsius) {
+                const snapHalfC = (c: number) => Math.round(c * 2) / 2;
+                const clamp = (v: number, min: number, max: number) => Math.min(max, Math.max(min, v));
+                // Snap to 0.5 °C and clamp to device limits
+                const setC = snapHalfC(temperature);
+                temperature = clamp(setC, this.mysaDevice.MinSetpoint ?? 0, this.mysaDevice.MaxSetpoint ?? 100);
+              }
+
+              this.mysaApiClient.setDeviceState(this.mysaDevice.Id, temperature, undefined);
             }
             break;
         }
       }
     );
 
+    this.mqttTemperature = new Sensor({
+      mqtt: this.mqttSettings,
+      logger: this.logger,
+      component: {
+        component: 'sensor',
+        device: this.mqttDevice,
+        origin: this.mqttOrigin,
+        unique_id: `mysa_${mysaDevice.Id}_temperature`,
+        name: 'Current temperature',
+        device_class: 'temperature',
+        state_class: 'measurement',
+        unit_of_measurement: '°C',
+        suggested_display_precision: is_celsius ? 0.1 : 0.0,
+        force_update: true
+      }
+    });
+
+    this.mqttHumidity = new Sensor({
+      mqtt: this.mqttSettings,
+      logger: this.logger,
+      component: {
+        component: 'sensor',
+        device: this.mqttDevice,
+        origin: this.mqttOrigin,
+        unique_id: `mysa_${mysaDevice.Id}_humidity`,
+        name: 'Current humidity',
+        device_class: 'humidity',
+        state_class: 'measurement',
+        unit_of_measurement: '%',
+        suggested_display_precision: 0,
+        force_update: true
+      }
+    });
+
     this.mqttPower = new Sensor({
       mqtt: this.mqttSettings,
       logger: this.logger,
       component: {
         component: 'sensor',
         device: this.mqttDevice,
+        origin: this.mqttOrigin,
         unique_id: `mysa_${mysaDevice.Id}_power`,
+        name: 'Current power',
         device_class: 'power',
         state_class: 'measurement',
         unit_of_measurement: 'W',
@@ -130,15 +200,24 @@ export class Thermostat {
     try {
       const deviceStates = await this.mysaApiClient.getDeviceStates();
       const state = deviceStates.DeviceStatesObj[this.mysaDevice.Id];
+      const tstatMode = state.TstatMode?.v;
 
-      this.mqttClimate.currentTemperature = state.CorrectedTemp.v;
+      this.mqttClimate.currentTemperature = state.CorrectedTemp?.v;
-      this.mqttClimate.currentHumidity = state.Humidity.v;
+      this.mqttClimate.currentHumidity = state.Humidity?.v;
-      this.mqttClimate.currentMode = state.TstatMode.v === 1 ? 'off' : state.TstatMode.v === 3 ? 'heat' : undefined;
+      this.mqttClimate.currentMode = tstatMode === 1 ? 'off' : tstatMode === 3 ? 'heat' : undefined;
-      this.mqttClimate.currentAction = this.computeCurrentAction(undefined, state.Duty.v);
+      this.mqttClimate.currentAction = this.computeCurrentAction(undefined, state.Duty?.v);
-      this.mqttClimate.targetTemperature = this.mqttClimate.currentMode !== 'off' ? state.SetPoint.v : undefined;
+      this.mqttClimate.targetTemperature = this.mqttClimate.currentMode !== 'off' ? state.SetPoint?.v : undefined;
-
       await this.mqttClimate.writeConfig();
 
+      await this.mqttTemperature.setState(
+        'state_topic',
+        state.CorrectedTemp != null ? state.CorrectedTemp.v.toFixed(2) : 'None'
+      );
+      await this.mqttTemperature.writeConfig();
+
+      await this.mqttHumidity.setState('state_topic', state.Humidity != null ? state.Humidity.v.toFixed(2) : 'None');
+      await this.mqttHumidity.writeConfig();
+
       // `state.Current.v` always has a non-zero value, even for thermostats that are off, so we can't use it to determine initial power state.
       await this.mqttPower.setState('state_topic', 'None');
       await this.mqttPower.writeConfig();
@@ -166,6 +245,8 @@ export class Thermostat {
     this.mysaApiClient.emitter.off('stateChanged', this.mysaStateChangeHandler);
 
     await this.mqttPower.setState('state_topic', 'None');
+    await this.mqttTemperature.setState('state_topic', 'None');
+    await this.mqttHumidity.setState('state_topic', 'None');
   }
 
   private async handleMysaStatusUpdate(status: Status) {
@@ -178,12 +259,15 @@ export class Thermostat {
     this.mqttClimate.currentHumidity = status.humidity;
     this.mqttClimate.targetTemperature = this.mqttClimate.currentMode !== 'off' ? status.setPoint : undefined;
 
-    if (status.current != null) {
+    if (this.mysaDevice.Voltage != null && status.current != null) {
       const watts = this.mysaDevice.Voltage * status.current;
       await this.mqttPower.setState('state_topic', watts.toFixed(2));
     } else {
       await this.mqttPower.setState('state_topic', 'None');
     }
+
+    await this.mqttTemperature.setState('state_topic', status.temperature.toFixed(2));
+    await this.mqttHumidity.setState('state_topic', status.humidity.toFixed(2));
   }
 
   private async handleMysaStateChange(state: StateChange) {
@@ -200,6 +284,7 @@ export class Thermostat {
 
       case 'heat':
         this.mqttClimate.currentMode = 'heat';
+        this.mqttClimate.targetTemperature = state.setPoint;
         break;
     }
   }

tsconfig.json

@@ -8,6 +8,7 @@
     "noEmit": true,
     "resolveJsonModule": true,
     "module": "ESNext",
+    "lib": ["ES2022"],
     "paths": {
       "@/*": ["./src/*"]
     }