Add support for Tessel Servo module

Shorten path to io.name

README.md

@@ -190,6 +190,7 @@ To interactively navigate the examples, visit the [Johnny-Five examples](http://
 ### LED
 - [LED](https://github.com/rwaldron/johnny-five/blob/master/docs/led.md)
 - [LED - PCA9685](https://github.com/rwaldron/johnny-five/blob/master/docs/led-PCA9685.md)
+- [LED - Tessel Servo Module](https://github.com/rwaldron/johnny-five/blob/master/docs/led-tessel-servo-module.md)
 - [LED - Blink](https://github.com/rwaldron/johnny-five/blob/master/docs/led-blink.md)
 - [LED - Pulse](https://github.com/rwaldron/johnny-five/blob/master/docs/led-pulse.md)
 - [LED - Pulse with animation](https://github.com/rwaldron/johnny-five/blob/master/docs/led-pulse-animation.md)
@@ -217,6 +218,7 @@ To interactively navigate the examples, visit the [Johnny-Five examples](http://
 ### Servo
 - [Servo](https://github.com/rwaldron/johnny-five/blob/master/docs/servo.md)
 - [Servo - PCA9685](https://github.com/rwaldron/johnny-five/blob/master/docs/servo-PCA9685.md)
+- [Servo - Tessel Servo Module](https://github.com/rwaldron/johnny-five/blob/master/docs/servo-tessel-servo-module.md)
 - [Servo - Continuous](https://github.com/rwaldron/johnny-five/blob/master/docs/servo-continuous.md)
 - [Servo - Slider control](https://github.com/rwaldron/johnny-five/blob/master/docs/servo-slider.md)
 - [Servo - Prompt](https://github.com/rwaldron/johnny-five/blob/master/docs/servo-prompt.md)

docs/led-tessel-servo-module.md

@@ -0,0 +1,71 @@
+<!--remove-start-->
+
+# LED - Tessel Servo Module
+
+<!--remove-end-->
+
+
+
+
+
+
+
+
+Run with:
+```bash
+node eg/led-tessel-servo-module.js
+```
+
+
+```javascript
+var five = require("johnny-five");
+var Tessel = require("tessel-io");
+
+var board = new five.Board({
+  io: new Tessel()
+});
+
+board.on("ready", function() {
+  var led = new five.Led({
+    pin: process.argv[2] || 1,
+    address: 0x73,
+    port: "A",
+    controller: "PCA9685"
+  });
+
+  // address: The address of the shield.
+  //    Defaults to 0x40
+  // pin: The pin the LED is connected to
+  //    Defaults to 0
+  // controller: The type of controller being used.
+  //   Defaults to "standard".
+  // port: The Tessel port being used "A" or "B"
+
+  // Add LED to REPL (optional)
+  this.repl.inject({
+    led: led
+  });
+
+  led.pulse();
+});
+
+```
+
+
+
+
+
+
+
+
+&nbsp;
+
+<!--remove-start-->
+
+## License
+Copyright (c) 2012, 2013, 2014 Rick Waldron <waldron.rick@gmail.com>
+Licensed under the MIT license.
+Copyright (c) 2014, 2015 The Johnny-Five Contributors
+Licensed under the MIT license.
+
+<!--remove-end-->

docs/servo-tessel-servo-module.md

@@ -0,0 +1,61 @@
+<!--remove-start-->
+
+# Servo - Tessel Servo Module
+
+<!--remove-end-->
+
+
+
+
+
+
+
+
+Run with:
+```bash
+node eg/servo-tessel-servo-module.js
+```
+
+
+```javascript
+var five = require("johnny-five");
+var Tessel = require("tessel-io");
+
+var board = new five.Board({
+  io: new Tessel()
+});
+
+board.on("ready", function() {
+  console.log("Connected");
+
+  // Initialize the servo instance
+  var servo = new five.Servo({
+    controller: "PCA9685",
+    port: "A",
+    address: 0x73,
+    pin: 1,
+  });
+
+  servo.sweep();
+});
+
+```
+
+
+
+
+
+
+
+
+&nbsp;
+
+<!--remove-start-->
+
+## License
+Copyright (c) 2012, 2013, 2014 Rick Waldron <waldron.rick@gmail.com>
+Licensed under the MIT license.
+Copyright (c) 2014, 2015 The Johnny-Five Contributors
+Licensed under the MIT license.
+
+<!--remove-end-->

eg/led-tessel-servo-module.js

@@ -0,0 +1,30 @@
+var five = require("../lib/johnny-five.js");
+var Tessel = require("tessel-io");
+
+var board = new five.Board({
+  io: new Tessel()
+});
+
+board.on("ready", function() {
+  var led = new five.Led({
+    pin: process.argv[2] || 1,
+    address: 0x73,
+    port: "A",
+    controller: "PCA9685"
+  });
+
+  // address: The address of the shield.
+  //    Defaults to 0x40
+  // pin: The pin the LED is connected to
+  //    Defaults to 0
+  // controller: The type of controller being used.
+  //   Defaults to "standard".
+  // port: The Tessel port being used "A" or "B"
+
+  // Add LED to REPL (optional)
+  this.repl.inject({
+    led: led
+  });
+
+  led.pulse();
+});

eg/servo-tessel-servo-module.js

@@ -0,0 +1,20 @@
+var five = require("../lib/johnny-five.js");
+var Tessel = require("tessel-io");
+
+var board = new five.Board({
+  io: new Tessel()
+});
+
+board.on("ready", function() {
+  console.log("Connected");
+
+  // Initialize the servo instance
+  var servo = new five.Servo({
+    controller: "PCA9685",
+    port: "A",
+    address: 0x73,
+    pin: 1,
+  });
+
+  servo.sweep();
+});

lib/expander.js

@@ -661,17 +661,34 @@ var Controllers = {
     },
     digitalWrite: {
       value: function(pin, value) {
+
+        // The Tessel Servo module is mislabeled 1 - 16 instead of 0 - 15
+        if (this.io.name === "Tessel 2") {
+          pin--;
+        }
+
         this.pwmWrite(pin, value ? 255 : 0);
       }
     },
     analogWrite: {
       value: function(pin, value) {
+
+        // The Tessel Servo module is mislabeled 1 - 16 instead of 0 - 15
+        if (this.io.name === "Tessel 2") {
+          pin--;
+        }
+
         this.pwmWrite(pin, value);
       }
     },
     servoWrite: {
       value: function(pin, value) {
 
+        // The Tessel Servo module is mislabeled 1 - 16 instead of 0 - 15
+        if (this.io.name === "Tessel 2") {
+          pin--;
+        }
+
         value = Board.constrain(value, 0, 180);
 
         var off = __.map(value, 0, 180, this.pwmRange[0] / 4, this.pwmRange[1] / 4);
@@ -685,6 +702,12 @@ var Controllers = {
     },
     pwmWrite: {
       value: function(pin, value) {
+
+        // The Tessel Servo module is mislabeled 1 - 16 instead of 0 - 15
+        if (this.io.name === "Tessel 2") {
+          pin--;
+        }
+
         if (this.pins[pin] === undefined) {
           throw new RangeError("Invalid PCA9685 pin: " + pin);
         }

tpl/programs.json

@@ -93,6 +93,10 @@
         "title": "LED - PCA9685",
         "description": "Basic LED example using PCA9685"
       },
+      {
+        "file": "led-tessel-servo-module.js",
+        "title": "LED - Tessel Servo Module"
+      },
       {
         "file": "led-blink.js",
         "title": "LED - Blink",
@@ -274,6 +278,10 @@
         "file": "servo-PCA9685.js",
         "title": "Servo - PCA9685"
       },
+      {
+        "file": "servo-tessel-servo-module.js",
+        "title": "Servo - Tessel Servo Module"
+      },
       {
         "file": "servo-continuous.js",
         "title": "Servo - Continuous",