Initial pass at getting the firmware version

DOCS.md

@@ -92,6 +92,7 @@ Emits when a Powered UP Hub device is found.
 * [WeDo2SmartHub](#WeDo2SmartHub) ⇐ <code>Hub</code>
     * [new WeDo2SmartHub()](#new_WeDo2SmartHub_new)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -135,6 +136,17 @@ The WeDo2SmartHub is emitted if the discovered device is a WeDo 2.0 Smart Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### weDo2SmartHub.firmwareVersion
+**Kind**: instance property of [<code>WeDo2SmartHub</code>](#WeDo2SmartHub)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### weDo2SmartHub.uuid
@@ -453,6 +465,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new BoostMoveHub()](#new_BoostMoveHub_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -509,6 +522,18 @@ The BoostMoveHub is emitted if the discovered device is a Boost Move Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### boostMoveHub.firmwareVersion
+**Kind**: instance property of [<code>BoostMoveHub</code>](#BoostMoveHub)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### boostMoveHub.uuid
@@ -853,6 +878,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new PUPHub()](#new_PUPHub_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -907,6 +933,18 @@ The PUPHub is emitted if the discovered device is a Powered UP Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### pupHub.firmwareVersion
+**Kind**: instance property of [<code>PUPHub</code>](#PUPHub)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### pupHub.uuid
@@ -1225,6 +1263,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new PUPRemote()](#new_PUPRemote_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -1270,6 +1309,18 @@ The PUPRemote is emitted if the discovered device is a Powered UP Remote.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### pupRemote.firmwareVersion
+**Kind**: instance property of [<code>PUPRemote</code>](#PUPRemote)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### pupRemote.uuid
@@ -1473,6 +1524,7 @@ A combined color and distance event, emits when the sensor is activated.
     * [new DuploTrainBase()](#new_DuploTrainBase_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -1523,6 +1575,18 @@ The DuploTrainBase is emitted if the discovered device is a Duplo Train Base.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### duploTrainBase.firmwareVersion
+**Kind**: instance property of [<code>DuploTrainBase</code>](#DuploTrainBase)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### duploTrainBase.uuid

README.md

@@ -185,6 +185,7 @@ Emits when a Powered UP Hub device is found.
 * [WeDo2SmartHub](#WeDo2SmartHub) ⇐ <code>Hub</code>
     * [new WeDo2SmartHub()](#new_WeDo2SmartHub_new)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -228,6 +229,17 @@ The WeDo2SmartHub is emitted if the discovered device is a WeDo 2.0 Smart Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### weDo2SmartHub.firmwareVersion
+**Kind**: instance property of [<code>WeDo2SmartHub</code>](#WeDo2SmartHub)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### weDo2SmartHub.uuid
@@ -546,6 +558,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new BoostMoveHub()](#new_BoostMoveHub_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -602,6 +615,18 @@ The BoostMoveHub is emitted if the discovered device is a Boost Move Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### boostMoveHub.firmwareVersion
+**Kind**: instance property of [<code>BoostMoveHub</code>](#BoostMoveHub)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### boostMoveHub.uuid
@@ -946,6 +971,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new PUPHub()](#new_PUPHub_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -1000,6 +1026,18 @@ The PUPHub is emitted if the discovered device is a Powered UP Hub.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### pupHub.firmwareVersion
+**Kind**: instance property of [<code>PUPHub</code>](#PUPHub)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### pupHub.uuid
@@ -1318,6 +1356,7 @@ Emits when an attached motor or sensor is detached from the Hub.
     * [new PUPRemote()](#new_PUPRemote_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -1363,6 +1402,18 @@ The PUPRemote is emitted if the discovered device is a Powered UP Remote.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### pupRemote.firmwareVersion
+**Kind**: instance property of [<code>PUPRemote</code>](#PUPRemote)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### pupRemote.uuid
@@ -1566,6 +1617,7 @@ A combined color and distance event, emits when the sensor is activated.
     * [new DuploTrainBase()](#new_DuploTrainBase_new)
     * [.current](#LPF2Hub+current)
     * [.name](#Hub+name)
+    * [.firmwareVersion](#Hub+firmwareVersion)
     * [.uuid](#Hub+uuid)
     * [.rssi](#Hub+rssi)
     * [.batteryLevel](#Hub+batteryLevel)
@@ -1616,6 +1668,18 @@ The DuploTrainBase is emitted if the discovered device is a Duplo Train Base.
 | --- | --- | --- |
 | name | <code>string</code> | Name of the hub |
 
+<a name="Hub+firmwareVersion"></a>
+
+### duploTrainBase.firmwareVersion
+**Kind**: instance property of [<code>DuploTrainBase</code>](#DuploTrainBase)  
+**Overrides**: [<code>firmwareVersion</code>](#Hub+firmwareVersion)  
+**Read only**: true  
+**Properties**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| firmwareVersion | <code>string</code> | Firmware version of the hub |
+
 <a name="Hub+uuid"></a>
 
 ### duploTrainBase.uuid

src/hub.ts

@@ -25,6 +25,7 @@ export class Hub extends EventEmitter {
     protected _characteristics: {[uuid: string]: Characteristic} = {};
 
     protected _name: string;
+    protected _firmwareVersion: string = "0.0.0.0";
     protected _batteryLevel: number = 100;
 
     private _peripheral: Peripheral;
@@ -49,6 +50,15 @@ export class Hub extends EventEmitter {
     }
 
 
+    /**
+     * @readonly
+     * @property {string} firmwareVersion Firmware version of the hub
+     */
+    public get firmwareVersion () {
+        return this._firmwareVersion;
+    }
+
+
     /**
      * @readonly
      * @property {string} uuid UUID of the hub

src/lpf2hub.ts

@@ -40,6 +40,7 @@ export class LPF2Hub extends Hub {
             const characteristic = this._getCharacteristic(Consts.BLECharacteristic.LPF2_ALL);
             this._subscribeToCharacteristic(characteristic, this._parseMessage.bind(this));
             this._writeMessage(Consts.BLECharacteristic.LPF2_ALL, Buffer.from([0x01, 0x02, 0x02])); // Activate button reports
+            this._writeMessage(Consts.BLECharacteristic.LPF2_ALL, Buffer.from([0x01, 0x03, 0x05])); // Get firmware version
             this._writeMessage(Consts.BLECharacteristic.LPF2_ALL, Buffer.from([0x41, 0x3b, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01])); // Activate current reports
             this._writeMessage(Consts.BLECharacteristic.LPF2_ALL, Buffer.from([0x41, 0x3c, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01])); // Activate voltage reports
             if (this.type === Consts.HubType.DUPLO_TRAIN_HUB) {
@@ -190,6 +191,18 @@ export class LPF2Hub extends Hub {
                 this.emit("button", "GREEN", Consts.ButtonState.RELEASED);
                 return;
             }
+        } else if (data[3] === 3) {
+            const fwData = data.slice(5, data.length);
+            let bcd = fwData.readUInt8(3);
+            const major = bcd >>> 4;
+            const minor = bcd & 0xf;
+            bcd = fwData.readUInt8(2);
+            const bugFix = bcd >>> 4 * 10 + bcd & 0xf;
+            bcd = fwData.readUInt8(1);
+            let build = bcd >>> 4 * 1000 + bcd & 0xf * 100;
+            bcd = fwData.readUInt8(0);
+            build = build + bcd >>> 4 * 10 + bcd & 0xf;
+            this._firmwareVersion = `${major}.${minor}.${bugFix}.${build}`;
         }
 
     }
@@ -238,7 +251,17 @@ export class LPF2Hub extends Hub {
 
     private _parseSensorMessage (data: Buffer) {
 
-        if ((data[3] === 0x3b && this.type === Consts.HubType.POWERED_UP_REMOTE) || (data[3] === 0x3c && this.type !== Consts.HubType.POWERED_UP_REMOTE)) { // Voltage
+        if ((data[3] === 0x3b && this.type === Consts.HubType.POWERED_UP_REMOTE)) { // Voltage (PUP Remote)
+            data = this._padMessage(data, 6);
+            const batteryLevel = data.readUInt16LE(4) / 500;
+            this._batteryLevel = Math.floor(batteryLevel);
+            return;
+        } else if (data[3] === 0x3c && this.type === Consts.HubType.POWERED_UP_REMOTE) { // Current (PUP Remote)
+            data = this._padMessage(data, 6);
+            const current = data.readUInt16LE(4) / 1000;
+            this._current = current;
+            return;
+        } else if (data[3] === 0x3c && this.type !== Consts.HubType.POWERED_UP_REMOTE) { // Voltage (Non-PUP Remote)
             data = this._padMessage(data, 6);
             const batteryLevel = data.readUInt16LE(4) / 400;
             this._batteryLevel = Math.floor(batteryLevel);
@@ -248,11 +271,6 @@ export class LPF2Hub extends Hub {
             const current = data.readUInt16LE(4) / 4096;
             this._current = current * 100;
             return;
-        } else if (data[3] === 0x3c) { // Current (PUP Remote)
-            data = this._padMessage(data, 6);
-            const current = data.readUInt16LE(4) / 1000;
-            this._current = current;
-            return;
         }
 
         const port = this._getPortForPortNumber(data[3]);