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add mcp3008 node and bump some packages

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README.md
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@ -71,6 +71,8 @@ Copyright 2013, 2016 IBM Corp. under [the Apache 2.0 license](LICENSE).
**node-red-node-intel-galileo** - *[mraa-spio](hardware/intel)* - A collection of analogue & digital input & output nodes for the Intel Galileo and Edison.
**node-red-node-pi-mcp3008** - *[pimcp3008](hardware/mcp3008)* - Allows A Raspberry Pi to node to read from an MCP3008 Analogue to Digital Converter chip via the SPI bus.
**node-red-node-pi-neopixel** - *[neopixel](hardware/neopixel)* - Allows A Raspberry Pi to drive a strip of NeoPixels directly.
**node-red-node-pi-unicorn-hat** - *[unicorn](hardware/unicorn)* - Lets a Raspbeery Pi control a Pimorini Unicorn HAT 8x8 LED display.

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hardware/mcp3008/README.md Normal file
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node-red-node-pi-mcp3008
========================
A <a href="http://nodered.org" target="_new">Node-RED</a> node to read from
the MCP3008 Analogue to Digital Converter,
such as the <a href="http://rasp.io/analogzero" target="_new">Rasp.io analogzero</a>, though it will work with breadboard versions also.
**Warning**: Input voltages must not exceed 3.3V
### Pre-requisites
You must ensure that SPI is enabled. For recent (2016) versions of Raspbian you can do this
- Run `sudo raspi-config`
- Select `9 - Advanced Options`
- Select `A5 - SPI`
- Select `yes` to enable SPI
- Select `OK` to confirm
- Select the `Finish` button
### Install
Run the following command in your Node-RED user directory - typically `~/.node-red`
npm install node-red-node-pi-mcp3008
### Usage
Reads from an MCP3008 Analogue to Digital (ADC) chip on the Pi SPI CE0 connection.
You can either set a channel in the edit dialogue, or you can set the `msg.payload` to
select the channel dynamically. If so then the payload must be a value from 0 to 7.
Outputs a numeric `msg.payload` with a range of 0 to 1023, where 0 = 0V and 1023 = 3.3V (assuming you use the default 3.3V voltage reference).
**Hint**: use a `range` node to adjust the values to the range you want.
Also sets `msg.topic` to `adc/{the pin number}`

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hardware/mcp3008/package.json Normal file
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{
"name" : "node-red-node-pi-mcp3008",
"version" : "0.0.2",
"description" : "A Node-RED node to read from the MCP3008 Analogue to Digital Converter",
"dependencies" : {
"mcp-spi-adc": "^0.0.1"
},
"repository" : {
"type":"git",
"url":"https://github.com/node-red/node-red-nodes/tree/master/hardware"
},
"license": "Apache-2.0",
"keywords": [ "node-red", "pi", "adc", "mcp3008" ],
"node-red" : {
"nodes" : {
"pimcp3008": "pimcp3008.js"
}
},
"author": {
"name": "Dave Conway-Jones",
"email": "conway@uk.ibm.com",
"url": "http://nodered.org"
}
}

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hardware/mcp3008/pimcp3008.html Normal file
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<!DOCTYPE html>
<!--
Copyright 2016 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.
-->
<script type="text/x-red" data-template-name="pimcp3008">
<div class="form-row">
<label for="node-input-mode"><i class="fa fa-map-pin"></i> Input pin</label>
<select type="text" id="node-input-pin" style="width:150px;">
<option value=0>A0</option>
<option value=1>A1</option>
<option value=2>A2</option>
<option value=3>A3</option>
<option value=4>A4</option>
<option value=5>A5</option>
<option value=6>A6</option>
<option value=7>A7</option>
<option value="M">set by msg.payload</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name"/>
</div>
</script>
<script type="text/x-red" data-help-name="pimcp3008">
<p>Reads from an MCP3008 Analogue to Digital Converter (ADC) chip on the Pi SPI CE0 connection,
such as the rasp.io/analogzero.</p>
<p>You can either set a channel in the edit dialogue, or you can set the <code>msg.payload</code>
to select the channel dynamically. If so then the expected payload must be a value from 0 to 7.</p>
<p>Outputs a numeric <code>msg.payload</code> with a range of 0 to 1023, representing 0V to 3.3V.</p>
<p><i>Hint</i>: use a <code>range</code> node to re-scale the values to ones you want.</p>
<p>Also sets <code>msg.topic</code> to <i>adc/{the pin number}</i></p>
<p><b>Warning</b>: Input voltages must not exceed 3.3V</p>
<p>The SPI bus must be enabled for this node to work. This can be achieved by using the
advanced menu (option 9 A5) of the raspi-config utility.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('pimcp3008',{
category: 'Raspberry Pi',
paletteLabel: 'A/D converter',
color: "#c6dbef",
defaults: {
name: {value:""},
pin: {value:0, required:true}
},
inputs: 1,
outputs: 1,
icon: "rpi.png",
label: function() {
return this.name || "ADC "+((this.pin==="M")?"":this.pin);
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>

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hardware/mcp3008/pimcp3008.js Normal file
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/**
* Copyright 2016 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 fs = require('fs');
// unlikely if not on a Pi
try { fs.statSync("/dev/ttyAMA0"); }
catch(err) { throw "Info : Ignoring Raspberry Pi specific node"; }
var mcpadc = require('mcp-spi-adc');
var mcp3008 = [];
function PiMcpNode(n) {
RED.nodes.createNode(this,n);
this.pin = n.pin || 0;
this.interval = n.interval || 1000;
var node = this;
try {
fs.statSync("/dev/spidev0.0");
if (mcp3008.length === 0) {
for (var i=0; i<8; i++) {
mcp3008.push(mcpadc.open(i, function (err) {
if (err) { node.error("Error: "+err); }
}));
}
}
node.on("input", function(msg) {
var pin = null;
if (node.pin === "M") {
var pay = parseInt(msg.payload.toString());
if ((pay >= 0) && (pay <= 7)) { pin = pay; }
else { node.warn("Payload needs to select channel 0 to 7"); }
}
else { pin = parseInt(node.pin); }
if (pin !== null) {
mcp3008[pin].read(function (err, reading) {
if (err) { node.warn("Read error: "+err); }
else { node.send({payload:reading.rawValue, topic:"adc/"+pin}); }
});
}
});
}
catch(err) {
node.error("Error : Can't find SPI device - is SPI enabled in raspi-config ?");
}
node.on("close", function(done) {
if (mcp3008.length !== 0) {
var j=0;
for (var i=0; i<8; i++) {
mcp3008[i].close(function() { j += 1; if (j === 8) {done()} });
}
mcp3008 = [];
}
else { done(); }
});
}
RED.nodes.registerType("pimcp3008",PiMcpNode);
}

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package.json
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@ -1,6 +1,6 @@
{
"name" : "node-red-nodes",
"version" : "0.0.5",
"version" : "0.0.6",
"description" : "Node-RED-nodes package to hold the test framework ONLY - use npm to install individual nodes",
"homepage" : "http://nodered.org",
"license" : "Apache-2.0",
@ -18,24 +18,24 @@
],
"devDependencies": {
"grunt": "^0.4.5",
"grunt-simple-mocha": "0.4.1",
"grunt-contrib-jshint": "1.0.0",
"grunt-lint-inline": "0.4.4",
"grunt-jscs": "2.8.0",
"grunt-simple-mocha": "^0.4.1",
"grunt-contrib-jshint": "^1.0.0",
"grunt-lint-inline": "^0.4.4",
"grunt-jscs": "^2.8.0",
"mocha": "^2.4.5",
"should": "^8.3.1",
"sinon": "^1.17.3",
"supertest": "^1.2.0",
"proxyquire": "1.7.4",
"pushbullet": "1.4.*",
"proxyquire": "^1.7.10",
"pushbullet": "^1.4.0",
"when": "^3.7.7",
"exif": "0.6.0",
"ngeohash": "0.6.*",
"nodemailer" : "1.11.*",
"poplib" : "0.1.7",
"mailparser" : "0.5.3",
"imap" : "0.8.17",
"msgpack-js": "0.3.0"
"exif": "^0.6.0",
"ngeohash": "^0.6.0",
"nodemailer" : "^1.11.0",
"poplib" : "^0.1.7",
"mailparser" : "^0.5.3",
"imap" : "^0.8.18",
"msgpack-js": "^0.3.0"
},
"engines": {
"node": ">=0.10"