Tidy Arduino - make it use integers.

plus slight tidy of docs

hardware/Arduino/35-arduino.html

@@ -41,7 +41,7 @@
     <p>The Arduino must be loaded with the Standard Firmata sketch available in the Arduino examples.</p>
     <p>You can select either Digital or Analogue input. Outputs the value read as <b>msg.payload</b> and the pin number as <b>msg.topic</b>.</p>
     <p>It only outputs on a change of value - fine for digital inputs, but you can get a lot of data from analogue pins which you must then handle.</p>
-    <p>You can set the sample rate in ms from 20 to 65535.</p>
+    <p>You can set the sample rate from 20 to 65535 mS.</p>
 </script>
 
 <script type="text/javascript">
@@ -95,7 +95,7 @@
 <script type="text/x-red" data-help-name="arduino out">
     <p>Arduino output node. Connects to local Arduino and writes to the selected digital pin. Uses <a href="http://firmata.org/" target="_new"><i>Firmata</i>.</a></p>
     <p>The Arduino must be loaded with the Standard Firmata sketch available in the Arduino examples.</p>
-    <p>You can select Digital, Analogue (PWM) or Servo type outputs. Expects a numeric value in <b>msg.payload</b>. The pin number is set in the properties panel.</p>
+    <p>You can select Digital, Analogue (PWM) or Servo type outputs. Expects an integer numeric value in <b>msg.payload</b>. The pin number is set in the properties panel.</p>
 </script>
 
 <script type="text/javascript">

hardware/Arduino/35-arduino.js

@@ -138,13 +138,13 @@ module.exports = function(RED) {
                         }
                     }
                     if (node.state === "PWM") {
-                        msg.payload = msg.payload * 1;
+                        msg.payload = parseInt((msg.payload * 1) + 0.5);
                         if ((msg.payload >= 0) && (msg.payload <= 255)) {
                             node.board.analogWrite(node.pin, msg.payload);
                         }
                     }
                     if (node.state === "SERVO") {
-                        msg.payload = msg.payload * 1;
+                        msg.payload = parseInt((msg.payload * 1) + 0.5);
                         if ((msg.payload >= 0) && (msg.payload <= 180)) {
                             node.board.servoWrite(node.pin, msg.payload);
                         }

hardware/Arduino/README.md

@@ -1,20 +1,17 @@
 node-red-node-arduino
 =====================
 
-A <a href="http://nodered.org" target="_new">Node-RED</a> node to talk to an Arduino running firmata.
-
-**Note** : This is the same node as was in the core of Node-RED.
-As of v0.10.8 you will need to install it from here if still required.
+A <a href="http://nodered.org" target="_new">Node-RED</a> node to talk to an
+Arduino running standard firmata 2.2 or better.
 
 Install
 -------
 
 Run the following command in the root directory of your Node-RED install, usually
-this is ~/.node-red .
+this is `~/.node-red`
 
         npm install node-red-node-arduino
 
-
 Usage
 -----
 
@@ -23,23 +20,33 @@ The Firmata firmware must be loaded into the Arduino.
 See the [main documentation](http://nodered.org/docs/hardware/arduino.html) for
 details and examples of how to use this node.
 
-###Input Node
+### Input Node
 
 Connects to local Arduino and monitors the selected pin for changes.
 
-You can select either Digital or Analogue input. Outputs the value read as **msg.payload** and the pin number as **msg.topic**.
+You can select either **Digital** or **Analogue** input type.
+Outputs the value read as **msg.payload** and the pin number as **msg.topic**.
 
 It only outputs on a change of value - fine for digital inputs, but you can get a lot of data from analogue pins which you must then handle.
 
-You can set the sample rate in ms from 20 to 65535.
+You can set the sample rate from `20` to `65535` mS.
 
-###Output Node
+### Output Node
 
 Connects to local Arduino and writes to the selected pin.
 
-You can select Digital, Analogue (PWM) or Servo type outputs. Expects a numeric value in **msg.payload**. The pin number is set in the properties panel.
+You can select
 
-###Example
+ - **Digital** - accepts 0, 1, true, false, on, off
+ - **Analogue** (PWM) - accepts Integer 0 to 255
+ - **Servo** - accepts Integer 0 - 180
+
+Expects a numeric value in **msg.payload**. The pin number is set in the properties panel.
+
+*Note* - some servos will not travel a full 180 degree range so may only accept 30 - 150 degrees for example.
+Please use the `range` node to scale the input appropriately.
+
+### Example
 
 Simple flow to blink Pin 13
 

hardware/Arduino/package.json

@@ -1,9 +1,9 @@
 {
     "name"          : "node-red-node-arduino",
-    "version"       : "0.0.2",
+    "version"       : "0.0.3",
     "description"   : "A Node-RED node to talk to an Arduino running firmata",
     "dependencies"  : {
-        "arduino-firmata"   : "0.3.2"
+        "arduino-firmata"   : "0.3.3"
     },
     "repository" : {
         "type":"git",