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Arduino Levitation Beginnings

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Uploaded by on Aug 7, 2009

Using the newest Arduino board (duemilanove), a linear hall effect sensor (Honeywell ss495a), and a pretty standard LED I've managed to program and get the circuit in the video working. All it does is sense if the magnetic field is past a certain threshold and then lights up the LED. Also in the Arduino environment the serial displays the output voltage (0-5V mapped between 0-1023). What this doesn't show is how it'll be incorporated into the levitation system (http://www.youtube.com/watch?v=mumrEE82qAw).

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Education

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  • nice, hook it up to a PWM pin and it will grow brighter and darker, somehow invert that and you've got yourself the code for a levitator.

  • THWG!

  • You can just connect the led to the hall effect sensor...

  • @RadioactiveLegos

    Although there is a built in resistor, that leads to the built in LED. Pin 13 is connected in parallel before the resistor.

  • @Tchnclfl I think that LED is in pin 13, which has a built-in 1k resistor.

  • What a great way to fry an LED and your digital output.

    You may want to learn what a current limiting resistor is.

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