Sebo Posted March 6, 2009 Report Share Posted March 6, 2009 Hi:I just finished my MIDIbox CV and is working great, I will use it to control my DIY modular.I used the AOUT (MAX525s) and powered it from +15-15V, also used the J5 of the CORE as gate outs.These outs are took directly from the PIC to the jacks without any protection, and I know that every timeI will plug a patch it will short briefly the PIC outs to ground. I don't know if the PIC could take this stressor if it is better to protect the outs.If protection is the way to go, do you think that a 100 ohms resitor in serie with the outs is enough?Thank you. Quote Link to comment Share on other sites More sharing options...
TK. Posted March 6, 2009 Report Share Posted March 6, 2009 The internal IO pin output drivers of the PIC are already limited at 25 mA, so that the 100 ohm resistor doesn't make a big difference. I think, that an additional protection isn't required, but if somebody experienced problems with shortened IOs, please let me know.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Sebo Posted March 6, 2009 Author Report Share Posted March 6, 2009 I'll leave it as it is, then.Thank you TK Quote Link to comment Share on other sites More sharing options...
PickNick Posted January 24, 2010 Report Share Posted January 24, 2010 hi all! first thx for this great midibox project! this is my favorite non-commercial... :) hmmm...i made some shorts last night and now my Gate1 is gone... :cat: everything is working except G1 from the PIC. i use all banana connectors... and this is not pure data :) i thinking about adding some extra diodes/1n4148 to the gates //4.3V is fine for driving my EG's// but i don't know its enough to protect the PIC. here is a pic of my midikannibal//AOUT+CORE cheers! p Quote Link to comment Share on other sites More sharing options...
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