Midi controlled power switch........

Design Concepts
1

Awroight, i eint really done anything like this befor, i know midi and max and stuff like that but i was wondering if it was feasable (as a first project) to mod a 4-way (power splitter thing) to be midi controlled?? Baisically so i can switch 4 things on and off from my computer, simple right?  If anyone with a bit of experience could give me some advice that would be awsome… thanks … ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D

2

hi and welcome

i was wondering if it was feasable (as a first project) to mod a 4-way (power splitter thing) to be midi controlled??

it is

Baisically so i can switch 4 things on and off from my computer, simple right?

errr why MIDI ?

Simone

3

Because i want to intergrate it into part of a performance patch in max, what else do you suggest using???

4

Yes, that’s no problem.

I don’t know your experience with electronics and mains power, you just write you have never done something like this.

I’m telling you: JUST BE CAREFUL!!! … and let it be if you don’t know exactly what you’re doing. This is not just like “hot rodding” your hair dryer.

Greets, Roger

5

I’ve pondered something like this shortly after I saw the beer advert that showed Christmas lights flashing in time with Trans-Siberian Orchestra.  I’d start with incandescent lights powered by a couple D-cells.  Use DOUT outputs to trip relays to turn on the lights.  But, aren’t DOUT output lines pulsed?  That may cause trouble with the relay.  In that case, adding a latch before the relay may be helpful.  Would someone who knows more about DOUT please help me out?

6

But, aren’t DOUT output lines pulsed?  That may cause trouble with the relay.  In that case, adding a latch before the relay may be helpful.  Would someone who knows more about DOUT please help me out?

… if it really is a problem, put a capacitor over it. (value: trial & error with a KO) Might be that the inertia of the relay is high enough.

Greets, Roger

7

I’m telling you: JUST BE CAREFUL!!!

And I’m telling you: Listen to Roger. I am sure I speak for us all here when I say that we do not want the title of “first DIY electronics community to kill a man”, and I’m pretty sure you’ll feel the same :wink:

8

Thanks for the pointers chaps… I vaugley follow what your sating about the electronics… i thought i’d vaugly follow the schematic from here http://www.doepfer.de/home_e.htm (for the MT64, make some LED’s light and go from there.  I’ll try not to electrocute myself!!! safe safe. al