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So I've got a project coming up (that may have something to do with this tweet ) that will require a few LED matrix displays. I found a suitable candidate online and ordered one to play around with.

The Laser Doodler | ch00ftech Industries

http://ch00ftech.com/2012/07/26/the-laser-doodler/
http://www.instructables.com/id/Arduino-Bike-Speedometer/

Arduino Bike Speedometer

The schematic for this project is shown above.
// // Processing code for a two axis Face-Following interacting with arduino firmata // to control servos connected to analog 9 and analog 10 pins // project "facefollow" by Marco Guardigli, email: mgua@tomware.it twitter: @mgua // // ATTENTION! http://marco.guardigli.it/2010/01/arduinoprocessing-face-follower.html

Only_Dead_Fish_Go_With_The_Flow: Arduino_Processing Face Follower

I would like to share with you my Intervallino project with all the steps and details it involved. http://rastroludico.wordpress.com/intervallino/#comment-19

DIY intervalometer based on Arduino « Rastroludico

The door is based around a design by Clint Fisher which I discovered on YouTube. This is a brilliant design as it actually locks in your precious darlings regardless how scrupulous the local fox or other vermin are in trying to prise open the door.

Arduino Chicken Coop Controller

http://www.instructables.com/id/Arduino-Chicken-Coop-Controller/
http://code.google.com/p/xoscillo/ About This is a multiplatform software oscilloscope and logical analyzer.

xoscillo - A software oscilloscope that acquires data using an arduino or a parallax (more platforms to come).

Arduino Christmas Light Controller

You've probably seen all those videos where people make there christmas lights dance to music, you think to your self wow that looks realy cool.... i could never do that. http://www.instructables.com/id/Arduino-Christmas-Light-Controller/

5 projetos com Arduino

http://br-linux.org/2011/5-projetos-com-arduino/ Enviado por Luiz Cruz (lucruzΘabril·com·br): “A seguir estão cinco projetos que utilizam a plataforma de prototipagem open source arduino. Não são exatamente novos, mas garantem boa diversão para quem gosta de criar hardware e software. 1) Open Energy Monitor 2) Wi-Fi Spy Robot 3) Sun Tracker Solar Panel 4) Open Sprints 5) GuitarLooper