Test the footswitch

The footswitch prototype test:

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Build the footswitch (part 2)

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The next step is to mount Raspberry, connect gpio pins and solder +5v connection to each button. The first picture shows +5v wiring. I know, I know, the 5v wires are of a different color, but I recycled some wires that I already had. The second picture shows gpio inputs wiring.
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Build the footswitch (part 1)

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I ordered 10 buttons from AliExpress While waiting the delivery of the item, I built a cardboard model of the footswitch and did some test on the placement of the buttons. I had to choose between a button placement on the same line and a button placement on multiple lines. The first option allows easier button selection, but requires a very long pedal board. the first option allows easier button selection, but requires a very long pedal board (longer than 80cm). The second option is more compact (less than 60cm) but requires more attention to select the preset. I chose the latter. I found a 6mm Thick MDF board on sale at a DIY store. This Is the first prototype: 4 presets per row bank down / up on the bottom right
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Plug software for Fender Mustang

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Fender Mustang amplifiers are digital guitar amplifiers. Customers can connect the amplifier to PC via USB port and control settings using the Fender FUSE application for Windows. A couple of months ago, I bought a used Mustang v1 amplifier on ebay for only 60€. On March 2020, Fender dropped official support for FUSE (and I also prefer to use Linux) so I did a little internet search and found an alternative open source software, "Plug". https://github.com/offa/plug I tried Plug on Ubuntu laptop and It worked. But I didn't want to take a laptop with me to play guitar, so I decided to  try Plug on a small Raspberry Pi Zero 2 W and it worked fine. My Mustang amplifier can store 24 presets (8 presets, 3 banks), but the Fender footswitch allows to select only 2 presets. It would be nice to select all of them using a footswitch instead of a PC keyboard...
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