tonymcbony wrote:A mate of mine has actually done this.
IIRC he mentioned programming his own controller, and something about the voltage controlling the preset.
It worked just as you'd imagine, he had two footswitches, one to scroll up, one to scroll down, and hit both to save a preset.
I told him he should take it to market, because there are heaps of people that'd be interested. I'll see if I can point him to this thread.
Hi Tony. I used a microcontroller to effectively to the same job as turning the encoder and and selecting a preset. I added a 1/4" trs jack and made a a pedal with 2 momentary footswitches.
It allows you to step up and down through presets. To save a preset you still need to hold the encoder button. The encoder still functions with the footswitch plugged in.
The encoder is basic with 3 lugs for the encoder part and 2 for the switch. The 3 encoder lugs are A, common and B. Common is tied to ground, A and B are pulled high with resistors .
When you turn the encoder A goes low, B goes low, A goes high, B goes high. So basically A leads B. Turn it the other way and B leads A. The switch contact switches low when pressed.
I soldered transistors across the back of these 3 contacts and used the microcontroller to switch them.
I powered the microcontroller from an existing 7805 regulator in the memory man.
I'm away from home until 7th August, but when i get back I can post more info and photos.
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