Footswitch Building

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lastwinj
Posts: 297
Joined: Fri Apr 21, 2006 5:03 pm

Re: Footswitch Building

Post by lastwinj »

plenty of multi pin connectors are available. basically comes down to price.

DIN work fine, and can be bought off the shelf for some uses.


germ
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mhuss
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Joined: Wed Jan 19, 2005 3:09 am
Location: SE PA, USA
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Re: Footswitch Building

Post by mhuss »

What I do (although it requires a bit more planning/design) is make the LED part of the control circuit. In other words, when a switch is closed, the control current flows through the LED and the switch. The switching logic just needs to be able to tell the difference between ~1.2v and Vcc (comparators work well for this).

All the logic (and the LED current limiting resistors) are on the amp side, so the footswitch itself can be fairly simple. You can also use the old "three diodes in parallel with the LED" trick to protect the LED if you're feeling paranoid.

Note that this would mean no LEDs lit for the "none of the above" default switching condition drz400 talked about above.

--mark
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