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##[Node-LEDS](http://www.quietless.com/kitchen/controlling-24-leds-with-node-js-and-a-raspberry-pi/)
## Sensors base server
This was a quick project to see how difficult it would be to control an Arduino microcontroller over a local network with a Raspberry PI.
A [node.js](http://nodejs.org) app for collecting and displaying LLAP messages from sensors (a-la [Ciseco sensors](http://http://shop.ciseco.co.uk/sensor/)).
To build the project you'll need to setup Node.js. [ideally on a PI if you want to build the project to spec.](http://www.quietless.com/kitchen/how-to-setup-node-js-on-a-raspberry-pi/)
### Setup
Materials used in this project:
The basic setup is:
- a server which runs this app (e.g. a Raspberry Pi)
- some sensors whose messages are being received on a serial port on the server.
The app then logs the messages into a file and runs a web server, which displays the current data in a nice way.
* [Raspberry PI Model B](http://www.raspberrypi.org/)
* [Arduino Leonardo](https://www.sparkfun.com/products/11286)
* [2x 400 tie pt Breadboards](https://www.sparkfun.com/products/9567)
* [1x Full Length Breadboard](https://www.sparkfun.com/products/112)
* [4x74HC595 Shift Registers](https://www.sparkfun.com/products/733)
* [7-Segment Display - 4-Digit](https://www.sparkfun.com/products/9481)
* [24 Leds](http://www.amazon.com/microtivity-IL188-Assorted-Resistors-Colors/dp/B0060FGA8A)
* [Bunch of Jumper Wires](http://www.amazon.com/Breadboard-jumper-wire-75pcs-pack/dp/B0040DEI9M)
### Credits
Installation:
1. [Follow the schematic to wire everything up](http://quietless.com/docs/node-leds/node-leds.pdf)
2. Flash the sketch at /arduino/node-led/node-led.ino onto your Arduino
3. Connect the Arduino to your PI
4. Fire up the Node server by running the app via > node app
5. Point a web browser at the IP address of the PI e.g. 192.168.2.1:8080
Any questions, comments, suggestions open an issue or [post a comment on my blog.](http://www.quietless.com/kitchen/controlling-24-leds-with-node-js-and-a-raspberry-pi/)
![Node-LEDS-schematic](http://quietless.com/docs/node-leds/node-leds.png "Node-LEDS-schematic")
Originally inspired by [Node-LEDS](http://www.quietless.com/kitchen/controlling-24-leds-with-node-js-and-a-raspberry-pi/).
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