Added an example to run basic functionality on the Duplo train

examples/duplo_test.js

@@ -0,0 +1,40 @@
+const PoweredUP = require("..");
+const poweredUP = new PoweredUP.PoweredUP();
+
+poweredUP.on("discover", async (hub) => { // Wait to discover a Hub
+    console.log(`Discovered ${hub.name}!`);
+    await hub.connect(); // Connect to the Hub
+    console.log("Connected");
+    let devices = hub.getDevices()
+    for (let i = 0; i<devices.length; ++i){
+        let device = devices[i];
+        console.log(`Device port ${device.portName} type ${device.type}`);
+    }
+    const hubLed = PoweredUP.Consts.DeviceTypeNames.HUB_LED;
+    let lights = hub.getDevicesByType(hubLed);
+    for (let i = 0; i<lights.length; ++i){
+        let device = lights[i];
+        console.log(`HubLed port ${device.portName} type ${device.type}`);
+    }
+
+    const motor = await hub.waitForDeviceAtPort("MOTOR");
+    const light = await hub.waitForDeviceByType(hubLed);
+    console.log("Setting running light to RED for 2 seconds");
+    light.setColor(PoweredUP.Consts.ColorNames.RED);
+    await hub.sleep(2000);
+    console.log("Setting running light to WHITE");    
+    light.setColor(PoweredUP.Consts.ColorNames.WHITE);
+
+    while (true) { // Repeat indefinitely
+        console.log("Running motor at speed 100 for 2 seconds");
+        motor.setPower(100); // Run a motor attached to port A for 2 seconds at maximum speed (100) then stop
+        await hub.sleep(2000);
+        console.log("Running motor at revrese speed 100 for 2 seconds");
+        motor.setPower(-100); // Run a motor attached to port A for 2 seconds at maximum speed (100) then stop
+        await hub.sleep(2000);
+        motor.brake();
+    }
+});
+
+poweredUP.scan(); // Start scanning for Hubs
+console.log("Scanning for Hubs...");