Topic: General - A VU meter for your PSP - Hack a Day

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He built a VU meter circuit around a couple of LM324 op-amp chips and fit it into the UMD space on the back of the PSP. Using surface mount LEDs and some fine wire he lined up a string of indicator lights round the circle on the clear UMD cover. If you want to learn a bit more about how the op-amps work , take a look at the tutorial from our links post. So… anything that spits out sound will fuck with the lights on the back? Hack a Day serves up fresh hacks each day, every day from around the web and a special How-To hack each week. All contents copyright © 2008, Hack A Day. read more

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This entry was posted on Sunday, March 7th, 2010 at 1:38 pm and is filed under General. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.