Initial commit

.gitignore

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+# Please take extra care not to add rules that will make tracked files ignored.
+# To test that, run `git ls-files -i --exclude-standard`.
+# To check why a specific file is ignored, run `git check-ignore -v <filepath>`.
+
+# === Rule for dotfiles ===
+# Ignore all dotfiles.
+.*
+# Exclude specific dotfiles that we want to track.
+!deps/**/.*
+!test/fixtures/**/.*
+!.clang-format
+!.editorconfig
+!.eslintignore
+!.eslintrc.js
+!.flake8
+!.gitattributes
+!.github
+!.gitignore
+!.gitkeep
+!.mailmap
+!.nycrc
+!.travis.yml
+!.eslintrc.yaml
+!.cpplint
+
+# === Rules for root dir ===
+/core
+/vgcore.*
+/v8*.log
+/perf.data
+/perf.data.old
+/tags
+/doc/api.xml
+/node
+/node_g
+/*.exe
+/*.swp
+/out
+/*.txt
+
+# === Rules for artifacts of `./configure` ===
+/icu_config.gypi
+/config.gypi
+/config.status
+/config_fips.gypi
+
+# === Rules for MSVS artifacts ===
+/Debug
+/Release
+*.sln
+*.suo
+*.vcxproj*
+UpgradeLog*.XML
+_UpgradeReport_Files/
+*.sdf
+*.opensdf
+*.VC.*
+*.wixobj
+/tools/msvs/genfiles/
+/npm.wxs
+# Exclude MSVS files used for .msi file generation
+!tools/msvs/msi/custom_actions.vcxproj
+!tools/msvs/msi/nodemsi.sln
+
+# === Rules for GYP artifacts ===
+*-nodegyp*
+/gyp-*-tool
+/test/addons/??_*/
+/*.mk
+
+# === Rules for other build artifacts ===
+/email.md
+/deps/v8-*
+/deps/icu
+/deps/icu*.zip
+/deps/icu*.tgz
+/deps/icu-tmp
+./node_modules
+/android-toolchain/
+# generated by gyp on Windows
+/deps/openssl/openssl.props
+/deps/openssl/openssl.targets
+/deps/openssl/openssl.xml
+# generated by gyp on android
+/*.target.mk
+/*.host.mk
+/deps/openssl/openssl.target.mk
+/deps/zlib/zlib.target.mk
+
+# === Rules for release artifacts ===
+/*.tar.*
+/*.pkg
+/SHASUMS*.txt*
+
+# === Rules for `node_modules` ===
+!**/node_modules/**
+/node_modules
+/tools/doc/node_modules
+/tools/clang-format/node_modules
+
+# === Rules for test artifacts ===
+/*.tap
+/*.xml
+/node_trace.*.log
+# coverage related
+/gcovr
+/build
+
+# === Rules for XCode artifacts ===
+*.xcodeproj
+*.xcworkspace
+*.pbxproj
+
+# === Rules for files in `/deps` ===
+# Exclude all files in the vendored `npm`.
+!/deps/npm/node_modules
+# These are not needed and causes issues for distro packagers.
+/deps/npm/node_modules/.bin/
+# Respect V8's .gitignore
+!deps/v8/**
+# Ignore the libuv book and GitHub templates
+/deps/uv/.github/
+/deps/uv/docs/code/
+/deps/uv/docs/src/guide/
+# Ignore dependencies fetched by deps/v8/tools/node/fetch_deps.py
+/deps/.cipd
+
+# === Global Rules ===
+# Keep last to avoid being excluded
+*.pyc
+__pycache__
+.DS_Store

LED.js

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+var i2cBus = require("i2c-bus");
+var Pca9685Driver = require("pca9685").Pca9685Driver;
+
+var options = {
+    i2c: i2cBus.openSync(1),
+    address: 0x70,
+    frequency: 50,
+    debug: false
+};
+
+var ledConfig = [
+	{r: 0, g: 1, b: 2}
+]
+
+
+
+
+class LED {
+    
+    constructor(){
+        this.pwm = new Pca9685Driver(options, function(err) {
+            if (err) {
+                console.error("Error initializing PCA9685");
+                process.exit(-1);
+            }
+            console.log("Initialization done");
+        });
+    }        
+    
+    setColor(stripe, r, g, b){
+        this.pwm.setPulseRange(ledConfig[stripe].r,0,r*16)
+        this.pwm.setPulseRange(ledConfig[stripe].g,0,g*16)
+        this.pwm.setPulseRange(ledConfig[stripe].b,0,b*16)
+        
+    }
+
+}
+
+module.exports = new LED()

index.js

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+var express = require('express');
+var bodyParser = require('body-parser')
+var app = express();
+var cors = require('cors')
+var i2cBus = require("i2c-bus");
+var Pca9685Driver = require("pca9685").Pca9685Driver;
+var LED = require("./LED.js");
+
+var state = {
+    "led": [
+    {   "color": {"r": 255, "g": 255, "b": 255}, 
+        "position": {
+            "description":"front left",
+            "block":1,
+            "direction": "left"
+        }, 
+        "channels": {
+            "type": "rgb"
+            "device": 0, 
+            "r": 0,
+            "g": 1,
+            "b": 2
+        }
+    }]
+}
+
+
+
+// parse application/x-www-form-urlencoded
+app.use(bodyParser.urlencoded({ extended: false }))
+
+// parse application/json
+app.use(bodyParser.json())
+app.use(cors())
+app.get('/get', (req, res) => {
+    if(req.query.led === undefined){
+        res.send(state.led)
+    } else if(req.query.led >= state.led.length){
+        res.sendStatus(400)
+    }else{
+        res.send(state.led[req.query.led])
+    }
+})
+
+app.post('/set', (req, res) => {
+    let id = req.body.id
+
+    state.led[id].color.r = req.body.r;
+    state.led[id].color.g = req.body.g;
+    state.led[id].color.b = req.body.b;
+    console.log(state.led)
+    
+    LED.setColor(req.body.id,state.led[0].r,state.led[0].g,state.led[0].b);
+    
+    res.sendStatus(200)
+    
+})
+
+app.post('setAll', (req, res) => {
+    
+    
+}
+
+app.listen(3002, ()=>{
+    console.log('Server running on port 3002')
+})
+

package.json

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+{
+  "name": "ledpi",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "watch": {
+    "start": "index.js"
+  },
+  "scripts": {
+    "start": "node .",
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "watch": "npm-watch"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.18.3",
+    "cors": "^2.8.5",
+    "express": "^4.16.4",
+    "i2c-bus": "^4.0.10",
+    "johnny-five": "^1.1.0",
+    "npm-watch": "^0.6.0",
+    "pca9685": "^4.0.3"
+  }
+}

pwm.js

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+var i2cBus = require("i2c-bus");
+var Pca9685Driver = require("pca9685").Pca9685Driver;
+
+
+var options = {
+    i2c: i2cBus.openSync(1),
+    address: 0x70,
+    frequency: 50,
+    debug: false
+};
+
+
+
+class PWM {
+
+	var pwm;
+
+	constructor(){
+
+		pwm = new Pca9685Driver(options, function(err) {
+		    if (err) {
+		        console.error("Error initializing PCA9685");
+		        process.exit(-1);
+		    }
+		    console.log("Initialization done");
+		});
+	}
+}
+
+module.exports = new PWM()

test.js

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+var i2cBus = require("i2c-bus");
+var Pca9685Driver = require("pca9685").Pca9685Driver;
+ 
+var options = {
+    i2c: i2cBus.openSync(1),
+    address: 0x70,
+    frequency: 50,
+    debug: false
+};
+pwm = new Pca9685Driver(options, function(err) {
+    if (err) {
+        console.error("Error initializing PCA9685");
+        process.exit(-1);
+    }
+    console.log("Initialization done");
+});
+
+module.exports.pwm