arduino - sound controlled rgb leds

hey guys,

i am modding my basement and i am using the following ible:

there is a link at the bottom that takes you to a website:

there is a schematic, and from other forums i am told that the irf9530 mofset has a rating of 12A
that means a total of 48A for the entire circuit as 12A for each channel r-g-b and the 4th UV, now is that safe for the entire circuit and is a pc power supply capable of delivering such amounts of current in a 12V format?

i am alo looking for leds that go with this project and found this store in ebay:

if you scroll down, what does the table tell about the leds? like the voltage and current required?

i am a complete noob at electronics but i am good at soldering and am willing to learn...i have a habit but don't know if its good or bad but until i know how something fundamentally works i cannot blindly accept its function so on that note, if anybody is also willing to explain the workings of the circuit please do so, any insight is greatly appreciated...

thankx for any help...

****************************************ABOVE METHOD SCRAPPED****************************

the above method is no longer possible since no one has the parts for the above schematic here in my city, so now i have resorted to arduino to save the day...

my idea is to have audio going into the arduino and analyzed to out put a "visualizer" in R-G-B channels. this then goes to a transistor which controls three chains in parallel of 1 watt leds. each chain as five 1 watt leds in series. each led is [voltage coming soon] and 350mA ... now i haven't ordered any parts yet, and not even the arduino but will tomorrow and so i need to know if this setup is going to work and i have seen others do it like this fellow:

this is exactly what i want to do but at a bigger scale. i don't know what type of transistor i will use but i have a handfull of 2n3772 and 2n3055 and 2n188a on me...

i know i am throwing out random components but i am still not giving up, even if it means missing newyears deadline...

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usLEDsupply6 years ago
Slisgrinder (author) 8 years ago
I ordered 45 of the 1 watt leds (15 for each of R, G, B), an arduino, and 5 IRF540 Mosfets... now after discussing this and getting plenty of help on other forums i have been told and i know why it is so, that the mosfets i ordered has a gate-source voltage of +/- 20V and a gate-threshold voltage of 2.0V - 4.0V. the arduino can only output 5V with 40mA, so now i need a driver circuit for each mosfet...any ideas are welcome...
use the same circuit you found in the beginning. the controller there is 5 V like the arduino

2N3904 2N2222 C945 BC547 might work instead of the BC337
Slisgrinder (author)  110100101108 years ago
so any of the above transistors would work? i have a bunch of 2n3904 transistors on hand, so all i hae to do is use the same "schematic" but with different resistor values and instead of the BC337, i should use 2n3904... are a life saver, i asked someone on another forum and they gave me this hugely complicated driver circuit to drive the mosfets...thankx
they might work. just try them C945 is a transistor i like to use everywhere (its like duct tape for some folks) cause it fits most needs and you have lots of them in every crt monitor or power supply you can find in the trash you may need to change the 10 K resistor between the arduino and the transistor base. about 1 K is ok for the ones with higher current capability and lower amplification (like C945)
Slisgrinder (author)  110100101108 years ago
nice to know that there is "duct tape" transistor out there, unfortunately i don't have access to any electronics shop right now and its christmas and i am still waiting for my order to come ya, i am stuck with the 2n3904 transistor.
it is duct tape cause you can find it in huge amounts in trashed electronics and dont have to buy in its parameters its actually inferior to lots of other common transistors
Slisgrinder (author)  110100101108 years ago
i really don't have a lot of stuff to salvage since over the summer, we cleaned our house and recycled a lot of our electronics
go look for some good trash
Slisgrinder (author)  110100101108 years ago
in -30 C ? i will think about that...
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