Matrix Orbital Corp

I believe I can run two fans from one GPO, as long as I wire them in parallel?

Can I do likewise with the LEDs to four fans? ie: Could I wire (in parallel) the LEDs from four fans into one of the GPO headers? I assume the LEDs of all four fans would be just as bright as if just one was connected?


I'm toying with connecting my four fans to three of the GPOs (two of them sharing one header), and then wiring all the LEDS from the four of them into the one remaining GPO on my MX4.

I can then control all four fans speeds from GPOs 1-3, and set their brightness from GPO4....

Any comments?

This is very do-able!!! A little hack and slash of the fans and it should work fine. With the fans connected in parallell, this will provide 12 Volts to each individual fan! It appears that the LED's have built in resistance along the trace, therefore current limiting shouldn't be an issue. Let me know how you make out with this little adventure!!

Miles wrote:This is very do-able!!! A little hack and slash of the fans and it should work fine. With the fans connected in parallell, this will provide 12 Volts to each individual fan! It appears that the LED's have built in resistance along the trace, therefore current limiting shouldn't be an issue. Let me know how you make out with this little adventure!!

If I do this, of couse the next step would be to try and see if I could send a value (0-255) to the all the LEDs are connected to. For example, if I could update it a couple of times a second with the output volume level from my sound card then the LEDs would flash into to music/sound