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1  Using Arduino / LEDs and Multiplexing / 100 LEDS light chaser sequence on: January 21, 2013, 09:14:47 pm
I want to create a light chaser sequence similar to the Cylons eyeball movement. But I want to do it using about 100 LEDs. knowing that there is only about 12 or 13 outputs that arduino can supply for me, is there any possible way for me to make an individual LED light up in sequence, up to 100 LEDs???
2  Using Arduino / Motors, Mechanics, and Power / Need help to assemble my dc motor to my arduino w/ relay switch on: October 06, 2012, 04:12:28 pm
http://www.arduino.cc/playground/Main/DCMotorControl

it says go to forums, but I couldnt find a thread based on this topic. If anyone knows how to properly connect everything, please help. I am a visual learner
3  Using Arduino / Installation & Troubleshooting / Cant find COM8 on: September 13, 2012, 06:48:36 am
It gives me this error msg


Binary sketch size: 2,418 bytes (of a 32,256 byte maximum)
processing.app.SerialNotFoundException: Serial port 'COM8' not found. Did you select the right one from the Tools > Serial Port menu?
   at processing.app.Serial.<init>(Serial.java:191)
   at processing.app.Serial.<init>(Serial.java:77)
   at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:77)
   at processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:172)
   at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67)
   at processing.app.Sketch.upload(Sketch.java:1706)
   at processing.app.Sketch.exportApplet(Sketch.java:1662)
   at processing.app.Sketch.exportApplet(Sketch.java:1634)
   at processing.app.Editor$DefaultExportHandler.run(Editor.java:2346)
   at java.lang.Thread.run(Thread.java:619)



When I go to device manager, it tells me Arduino Uno R3 (COM8), so I dont know what to do. Please help me out !
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