Added example of slow speed train control with a Medium Linear Motor (Boost Motor)

examples/slow_train_remote.js

@@ -0,0 +1,78 @@
+/*
+ *
+ * This example allows you to connect Vernie and a Powered UP Remote Control to your laptop, and enables the control of Vernie with the Remote.
+ *
+ */
+
+const PoweredUP = require("..");
+
+const poweredUP = new PoweredUP.PoweredUP();
+poweredUP.scan(); // Start scanning
+
+console.log("Looking for train and remote...");
+
+const TRAIN_LED_COLOR = PoweredUP.Consts.Color.PURPLE;
+
+let trainHub = null;
+let trainMotor = null;
+let remoteHub = null;
+let remoteButtonLeft = null;
+let remoteButtonRight = null;
+
+let currentSpeed = 0;
+
+poweredUP.on("discover", async (hub) => { // Wait to discover Vernie and Remote
+
+    if (hub.type === PoweredUP.Consts.HubType.HUB) {
+
+        trainHub = hub;
+        await trainHub.connect();
+        const led = await trainHub.waitForDeviceByType(PoweredUP.Consts.DeviceType.HUB_LED);
+        trainMotor = await trainHub.waitForDeviceByType(PoweredUP.Consts.DeviceType.MEDIUM_LINEAR_MOTOR);
+        led.setColor(TRAIN_LED_COLOR);
+        console.log(`Connected to train (${trainHub.name})!`);
+        if (trainHub && remoteHub) {
+            console.log("You're now ready to go!");
+        }
+
+    } else if (hub.type === PoweredUP.Consts.HubType.REMOTE_CONTROL) {
+        remoteHub = hub;
+        await remoteHub.connect();
+        const led = await remoteHub.waitForDeviceByType(PoweredUP.Consts.DeviceType.HUB_LED);
+        remoteButtonLeft = await remoteHub.waitForDeviceAtPort("LEFT");
+        remoteButtonRight = await remoteHub.waitForDeviceAtPort("RIGHT");
+        led.setColor(TRAIN_LED_COLOR);
+
+        remoteButtonLeft.on("remoteButton", ({ event }) => {
+            if (trainMotor) {
+                if (event === PoweredUP.Consts.ButtonState.UP) {
+                    currentSpeed += 10;
+                } else if (event === PoweredUP.Consts.ButtonState.DOWN) {
+                    currentSpeed -= 10;
+                } else if (event === PoweredUP.Consts.ButtonState.STOP) {
+                    currentSpeed = 0;
+                }
+                trainMotor.setSpeed(currentSpeed);
+            }
+        });
+
+        remoteButtonRight.on("remoteButton", ({ event }) => {
+            if (trainMotor) {
+                if (event === PoweredUP.Consts.ButtonState.UP) {
+                    currentSpeed += 1;
+                } else if (event === PoweredUP.Consts.ButtonState.DOWN) {
+                    currentSpeed -= 1;
+                } else if (event === PoweredUP.Consts.ButtonState.STOP) {
+                    currentSpeed = 0;
+                }
+                trainMotor.setSpeed(currentSpeed);
+            }
+        });
+
+        console.log(`Connected to remote (${remoteHub.name})!`);
+        if (trainHub && remoteHub) {
+            console.log("You're now ready to go!");
+        }
+    }
+    
+});

src/consts.ts

@@ -134,11 +134,11 @@ export const ColorNames = Color;
  * @property {number} STOP 4
  */
 export enum ButtonState {
-    PRESSED = 0,
-    RELEASED = 1,
-    UP = 2,
-    DOWN = 3,
-    STOP = 4
+    PRESSED = 2,
+    RELEASED = 0,
+    UP = 1,
+    DOWN = 255,
+    STOP = 127
 }