Hacked Gadgets Forum

October 30, 2012

Wave activated Light

at 3:13 am. Filed under DIY Hacks, Electronic Hacks


¬†Thanks to Noah Farrington for sending in his latest project which s a Wave activated Light. To make the magic happen he is using a ATTiny microcontroller, a voltage regulator, an ultrasonic distance sensor and a bright LED. The first version was done with an Arduino but that was overkill for Noah since he doesn’t need much computing power or pins. The small 8 pin microcontroller looks perfect for this project.

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3 Responses to “Wave activated Light”

  1. Tony Says:

    Y’know, if he used two receivers (one either side of the transmitter) then he could pick up the direction his hand was moving in. (I know, he got the modules cheap, which also explains ‘why not IR?’)

    Wave right for on, wave left for off. Bonus points for the speed of the wave controlling the dimming.

  2. Noahfarrington Says:

    Great ideas! You’re right about me getting them cheap…they were only about 3 bucks a pop. IR would be cool to try out though. Maybe in the next version!

  3. Alan Parekh Says:

    That would be cool. Another option for the existing hardware would be to make the height of the hand determine the light intensity and a quick rise is on full and a quick push down is off.

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