update syntax for led examples

eg/led-PCA9685.js

@@ -1,7 +1,7 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   const led = new Led({
     pin: process.argv[2] || 0,
     address: 0x40,
@@ -16,7 +16,7 @@ board.on("ready", function() {
   //   Defaults to "standard".
 
   // Add LED to REPL (optional)
-  this.repl.inject({ led });
+  board.repl.inject({ led });
 
   led.pulse();
 });

eg/led-blink.js

@@ -1,7 +1,7 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   const led = new Led(13);
 
   // "blink" the led in 500ms on-off phase periods

eg/led-demo-sequence.js

@@ -76,7 +76,7 @@ function execute(step) {
   });
 }
 
-board.on("ready", function () {
+board.on("ready", () => {
   // Defaults to pin 11 (must be PWM)
   led = new Led(process.argv[2] || 11);
 

eg/led-fade-animation.js

@@ -1,21 +1,21 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   const led = new Led(11);
 
   led.fade({
     easing: "linear",
     duration: 1000,
     cuePoints: [0, 0.2, 0.4, 0.6, 0.8, 1],
     keyFrames: [0, 250, 25, 150, 100, 125],
-    onstop: () => {
+    onstop() {
       console.log("Animation stopped");
     }
   });
 
   // Toggle the led after 2 seconds (shown in ms)
-  this.wait(2000, () => {
+  board.wait(2000, () => {
     led.fadeOut();
   });
 });

eg/led-fade-callback.js

@@ -1,7 +1,7 @@
 const {Board, Leds} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   // Set up the following PWM pins as LEDs.
   // Fade an LED out, and the complete callback will start
   // fading the next LED in sequence out, and so on.

eg/led-fade.js

@@ -1,13 +1,13 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   const led = new Led(11);
 
   led.fadeIn();
 
   // Toggle the led after 5 seconds (shown in ms)
-  this.wait(5000, () => {
+  board.wait(5000, () => {
     led.fadeOut();
   });
 });

eg/led-pulse-animation.js

@@ -1,7 +1,7 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   // Create a standard `led` component
   // on a valid pwm pin
   const led = new Led(11);
@@ -14,14 +14,14 @@ board.on("ready", function() {
     duration: 3000,
     cuePoints: [0, 0.2, 0.4, 0.6, 0.8, 1],
     keyFrames: [0, 10, 0, 50, 0, 255],
-    onstop: () => {
+    onstop() {
       console.log("Animation stopped");
     }
   });
 
   // Stop and turn off the led pulse loop after
   // 12 seconds (shown in ms)
-  this.wait(12000, () => {
+  board.wait(12000, () => {
 
     // stop() terminates the interval
     // off() shuts the led off

eg/led-pulse.js

@@ -1,7 +1,7 @@
 const {Board, Led} = require("../lib/johnny-five.js");
 const board = new Board();
 
-board.on("ready", function() {
+board.on("ready", () => {
   // Create a standard `led` component
   // on a valid pwm pin
   const led = new Led(11);
@@ -10,7 +10,7 @@ board.on("ready", function() {
 
   // Stop and turn off the led pulse loop after
   // 10 seconds (shown in ms)
-  this.wait(10000, () => {
+  board.wait(10000, () => {
 
     // stop() terminates the interval
     // off() shuts the led off

eg/led-tessel-servo-module.js

@@ -5,7 +5,7 @@ const board = new Board({
   io: new Tessel()
 });
 
-board.on("ready", function() {
+board.on("ready", () => {
   const led = new Led({
     pin: process.argv[2] || 1,
     address: 0x73,
@@ -22,9 +22,7 @@ board.on("ready", function() {
   // port: The Tessel port being used "A" or "B"
 
   // Add LED to REPL (optional)
-  this.repl.inject({
-    led: led
-  });
+  board.repl.inject({ led });
 
   led.pulse();
 });