StairLights

shane tully

shanetully.com

StairLights is an Arduino-based LED stair way lighting project. It uses an Arduino, two IR transmitters, two IR recievers, and a strand of individually controllable LEDs to display light patterns on stairs when a person is walking up or down them.

Demo of it in action: http://www.youtube.com/watch?v=21KKr8hQo5A

Parts

• Arduino Uno R3 (http://www.adafruit.com/products/50)
• Adafruit 36mm 12V LEDs (http://www.adafruit.com/products/683)
• 12V 5A power supply for the LEDs (https://www.adafruit.com/products/352)
• 2.1mm barallel plug adapter (https://www.adafruit.com/products/368)
• Two IR transmitters (https://www.sparkfun.com/products/10732)
• Two IR receivers (https://www.sparkfun.com/products/10266)
• About 150ft of 22 AWG hook-up wire (https://www.adafruit.com/products/290)

Installation

A circuit diagram is provided as a png and a Fritzing file. Missing from the diagram is the external power supply connected to the LED strand.

Once everything is wired up, load the sketch on the Arduino like any other sketch.

More Info

A much more detailed write-up is available on my blog at http://shanetully.com/2013/04/stairlights-an-arduino-based-led-stair-lighting-project/.

License

Copyright (C) 2013 Shane Tully

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.