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README.md

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+# IoT Dummy Data Generator
+
+Spawn dummy IoT devices and generate custom data that can be send to some data store.
+
+  - Test data store performance
+  - Generate dummy data to play with
+  - Simulate real-time usage
+
+## Installation
+
+IoT Dummy Data Generator requires [Node.js](https://nodejs.org/) v6+ to run.
+
+Requires docker to run example code.
+
+To run example, install the dependencies and devDependencies and start project with docker-compose.
+
+```sh
+$ npm install -d
+$ docker-compose up -d
+```
+
+This will create InfluxDB, Chronograf and IoT Dummy Data Generator containers
+
+Enter IoT Dummy Data Generator container
+
+```
+docker exec -ti iot-dummy-data-generator-master_chronograf_1 bash
+```
+
+And start the generator (in the iot-dummy-generator folder NOT in the docker above)
+
+```
+node index.js
+```
+
+Open browser to
+
+http://localhost:8086
+or if it does not work find the IP from net tools (ifconfig), usually some form of 172.0....
+
+and use Chronograf UI to visualize generated data.
+
+## Usage
+
+    const FakeDeviceManager = require('./src/fake-device-manager')
+    const FakeDeviceConnection = require('./src/fake-device-connection')
+    
+    const connection = FakeDeviceConnection()
+    
+    const deviceManager = FakeDeviceManager({
+      deviceCount: 100,
+      metricsInterval: 30,
+      connection: FakeDeviceConnection,
+      onUpdateStats: updateStats,
+      measurements: {
+        usage: {type: 'integer', min: 0, max: 100},
+        voltage: {type: 'integer', min: 0, max: 15},
+        temperature: {type: 'integer', min: -20, max: 60}
+      }
+    })
+    deviceManager.start()
+    console.log('Generating data')
+
+## API Reference
+
+### FakeDeviceManager
+
+Use FakeDeviceManager to spawn multiple FakeDevice instances with the same behavior. 
+Multiple manager instances can be used in parallel to create multiple FakeDevice groups with different behavior.
+
+When invoking FakeDeviceManager instance, you can set the following options:
+
+* `connection`: Data store connection. (Use FakeDeviceConnection that write to Influx database to start with)
+* `deviceCount`: Number of FakeDevice instances that will be spawned. (Default: `100`)
+* `spawnInterval`: Number of milliseconds to wait until new FakeDevice instance is spawned. (Default: `200`)
+* `metricsInterval`: Metrics interval in ms to pass to each spawned instance. (Default: `200`)
+* `sendInterval`: Send interval in ms to pass to each spawned instance. (Default: `15000`)
+* `measurements`: Measurements array to pass to each spawned instance.
+
+Methods
+
+* `start`: Start spawning FakeDevice instances
+* `stop`: Stop all spawned instances
+* `getDevices`: Get device list array
+* `getStats`: Get stats object
+ 
+### FakeDevice
+
+Immitates the behaviour of real IoT device. Generates defined measurements in specified interval and submits data to data source.
+Used by FakeDeviceManager, but can also be invoked as stand alone instance.
+
+When invoking FakeDevice instance, you can set the following options:
+
+* `deviceId`: Device identifier. Usually unique integer or string value.
+* `connection`: Data store connection. (Use FakeDeviceConnection that write to Influx database to start with)
+* `metricsInterval`: Metrics interval in ms to pass to each spawned instance. (Default: `200`)
+* `sendInterval`: Send interval in ms to pass to each spawned instance. (Default: `15000`)
+* `measurements`: Measurements array to pass to each spawned instance.
+* `autoStart`: If set to true, instance will start immediately. (Default: `false`)
+* `onSendData`: Function to be invoked after each send data interval.
+
+Methods
+
+* `start`: Start spawning FakeDevice instances
+* `stop`: Stop all spawned instances
+* `send`: Send data to data store
+* `getData`: Get data buffer
+
+## Todos
+
+ - Write Todo list :)
+
+License
+----
+
+MIT