Comments on: MSP430 Launchpad: LED as PhotoDiode http://gushh.net/blog/msp430-launchpad-led-as-photodiode/ This blog is about software, electronics engineering and game development. Sun, 29 Apr 2012 14:57:56 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Mohammed Bilal http://gushh.net/blog/msp430-launchpad-led-as-photodiode/comment-page-1/#comment-263 Mohammed Bilal Sun, 29 Apr 2012 14:57:56 +0000 http://gushh.net/blog/?p=796#comment-263 Its just amazing... Utilizing A current which in a range on microampere and flashing LED is just so damn Cool... Great Work Its just amazing…
Utilizing A current which in a range on microampere and flashing LED is just so damn Cool…
Great Work

]]> By: Shade.23 http://gushh.net/blog/msp430-launchpad-led-as-photodiode/comment-page-1/#comment-241 Shade.23 Wed, 24 Aug 2011 09:15:31 +0000 http://gushh.net/blog/?p=796#comment-241 Wow!!dats seriously a huge project :-p..but i guess i'll have to comprimise somewhere rite:-).K i'll keep searching for alternatives.:-).I'l keep this as an option :-p Wow!!dats seriously a huge project :-p..but i guess i’ll have to comprimise somewhere rite:-).K i’ll keep searching for alternatives.:-).I’l keep this as an option :-p

]]> By: GuShH http://gushh.net/blog/msp430-launchpad-led-as-photodiode/comment-page-1/#comment-240 GuShH Tue, 23 Aug 2011 18:34:14 +0000 http://gushh.net/blog/?p=796#comment-240 There are digitally controlled equalizer ICs (for example LMC835) if that's all you need though, I haven't messed around with those since they are not exactly common parts... If you were to do it discretely I think one way would be to implement the passive networks for each band and manipulate them with analog switches followed by a decade of resistors (or you could try digital potentiometers) --- then an opamp to get some of the lost amplitude back and output a similar db level to the input. It would be a monster ghetto project though. :) There are digitally controlled equalizer ICs (for example LMC835) if that’s all you need though, I haven’t messed around with those since they are not exactly common parts… If you were to do it discretely I think one way would be to implement the passive networks for each band and manipulate them with analog switches followed by a decade of resistors (or you could try digital potentiometers) — then an opamp to get some of the lost amplitude back and output a similar db level to the input. It would be a monster ghetto project though. :)

]]> By: Shade.23 http://gushh.net/blog/msp430-launchpad-led-as-photodiode/comment-page-1/#comment-239 Shade.23 Tue, 23 Aug 2011 11:55:06 +0000 http://gushh.net/blog/?p=796#comment-239 Well i did see the DSP boards.But then i was kinda looking at a low budget project :-p.I'll check the op amp equalizers too.And Thansk for the code :-) Well i did see the DSP boards.But then i was kinda looking at a low budget project :-p.I’ll check the op amp equalizers too.And Thansk for the code :-)

]]> By: GuShH http://gushh.net/blog/msp430-launchpad-led-as-photodiode/comment-page-1/#comment-238 GuShH Tue, 23 Aug 2011 04:17:56 +0000 http://gushh.net/blog/?p=796#comment-238 Glad it works! Hmm, audio requires a lot more processing power than these value-line micros can provide. Take a look at DSP, for example: http://focus.ti.com/dsp/docs/dsphome.tsp?sectionId=46&DCMP=TIHomeTracking&HQS=Other+OT+home_p_dsp -- It's not as hard as it sounds, but it can get pretty complex! -- If you have enough processing power and that's your only task, then a powerful micro may be enough for this. Otherwise you could take a look at how opamp based equalizers work and figure out a way to control them digitally. Glad it works!

Hmm, audio requires a lot more processing power than these value-line micros can provide. Take a look at DSP, for example: http://focus.ti.com/dsp/docs/dsphome.tsp?sectionId=46&DCMP=TIHomeTracking&HQS=Other+OT+home_p_dsp — It’s not as hard as it sounds, but it can get pretty complex! — If you have enough processing power and that’s your only task, then a powerful micro may be enough for this. Otherwise you could take a look at how opamp based equalizers work and figure out a way to control them digitally.

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