Instructables

How do i make these leds dance to music?

I want to hook the three led's i have up to my PC sound jack, i have parts, i may need more, but my question is how do i hook them up? please leave comments and or diagrams thank you

What I have (for now)

3 Leds:

1 WATT ULTRA BRIGHT LED GREEN
45/ 73 Lumens @ 350/ 700 mA
100 degree viewing angle
Maximum forward voltage: 4 Vdc
Maximum forward current: 350/ 700 mA

1 WATT ULTRA BRIGHT LED BLUE
19/ 31 Lumens @ 350/ 700 mA
100 degree viewing angle
Maximum forward voltage: 4 Vdc
Maximum forward current: 350/ 700 mA

1 WATT ULTRA BRIGHT LED RED
34/ 55 Lumens @ 350/ 700 mA
100 degree viewing angle
Maximum forward voltage: 4 Vdc
Maximum forward current: 350/ 700 mA

 
TIP31 80V TO-220 Transistor (is this the correct one?) i have 3

i also have 24g hook up wire, 3.5 splitter, 3.5 cable with plugs, many battery options as well as wall adapters


OK do i have what i need, do i need resistors, what ohm rating, and watt rating, what volt source?  i dont need it to be portable, will be on desk, a wall power supply would be best, please try to make me a diagram with parts i have, but if more are needed i have plenty of resistors to choose from Ty. and a store right down road :)


http://www.instructables.com/answers/I-need-a-diagram-please-from-a-knowledgeable-pers/

frollard3 years ago
as rickharris suggests, you have lots of existing projects to draw from. As for powering 1-watt (high power) leds, you need to regulate their current efficiently, or burn them out (or waste a lot of power).

You have the right idea to switch them on and off with the TIP transistor, but make sure to use the transistor to switch the regulated current on and off, lest again, you blow it up.
orksecurity3 years ago
As said many times before: Websearch "led color organ".
rickharris3 years ago

This search
produces several options.