diff --git a/function/PID/LICENSE b/function/PID/LICENSE
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--- /dev/null
+++ b/function/PID/LICENSE
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+
+ Apache License
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+ http://www.apache.org/licenses/
+
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diff --git a/function/PID/README.md b/function/PID/README.md
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+++ b/function/PID/README.md
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+node-red-node-pidcontrol
+========================
+
+A Node-RED node that provides a simple PID controller.
+
+Install
+-------
+
+Run the following command in the root directory of your Node-RED install - usually ~/.node-red
+
+ npm install node-red-node-pidcontrol
+
+
+Usage
+-----
+
+PID controller node.
+
+This node ONLY expects a numeric **msg.payload** containing the current reading.
+
+It will output the correction that needs to be applied in order to move to the preset **set point** value.
+
+The damping factors are typically in the range 0 - 1.
+See Wikipedia for more details on PID controllers.
+
+The **set point** may be overridden by **msg.setpoint**. If you do so the edit box value can be used as the initial value.
diff --git a/function/PID/package.json b/function/PID/package.json
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+++ b/function/PID/package.json
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+{
+ "name" : "node-red-node-pidcontrol",
+ "version" : "0.0.1",
+ "description" : "A Node-RED node that that provides a simple PID controller.",
+ "dependencies" : {
+ "node-pid-controller": "0.0.3"
+ },
+ "repository" : {
+ "type":"git",
+ "url":"https://github.com/node-red/node-red-nodes/tree/master/function/PID"
+ },
+ "license": "Apache",
+ "keywords": [ "node-red", "PID", "control" ],
+ "node-red" : {
+ "nodes" : {
+ "PID control": "pidcontrol.js"
+ }
+ },
+ "author": {
+ "name": "Dave Conway-Jones",
+ "email": "ceejay@vnet.ibm.com",
+ "url": "http://nodered.org"
+ }
+}
diff --git a/function/PID/pidcontrol.html b/function/PID/pidcontrol.html
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+++ b/function/PID/pidcontrol.html
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+
+
+
+
+
+
+
diff --git a/function/PID/pidcontrol.js b/function/PID/pidcontrol.js
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--- /dev/null
+++ b/function/PID/pidcontrol.js
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+/**
+ * Copyright 2015 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+module.exports = function(RED) {
+ "use strict";
+ var Controller = require('node-pid-controller');
+
+ function PIDcontrolNode(n) {
+ RED.nodes.createNode(this,n);
+ this.target = n.target;
+ this.kp = n.kp;
+ this.ki = n.ki;
+ this.kd = n.kd;
+ var node = this;
+ node.ctr = new Controller(node.kp, node.ki, node.kd);
+ node.ctr.setTarget(node.target);
+ this.status({fill:"blue",shape:"dot",text:"set point:"+node.target});
+ var tgt = node.target;
+
+ this.on("input",function(msg) {
+ if (msg.hasOwnProperty("setpoint")) {
+ tgt = Number(msg.setpoint);
+ node.ctr.setTarget(tgt);
+ this.status({fill:"blue",shape:"dot",text:"set point:"+tgt});
+ }
+ else if (!isNaN(msg.payload)) {
+ msg.payload = node.ctr.update(Number(msg.payload));
+ msg.topic = "pid";
+ node.send(msg);
+ }
+ else { node.warn("Non numeric input"); }
+ });
+ }
+ RED.nodes.registerType("PID control",PIDcontrolNode);
+}