Hello everyone,
I decided to write here, Hoping i can find someone with some experience about mods on exp pedals
I want to build another midi controller (the first one i did was a whammy shaped BLE midi with Arduino and a esp32-s3 board)
My goal is to use another “tocos” brand self centering potentiometer to build something like this:
It will work as a self centering/return whammy pedal, being the center position as original with and then heel and toe the max pitch up and down
So, i have the code and probably i need to buy an inexpensive exp pedal as platform where i could remove the original potentiometer and replace it with the one i need
In thomann i found an inexpensive one made of plastic. I think it could work as it might have less interference with Bluetooth signal, but i am open to use usb connection to the computer as well for the data transmission
Additionally i found a project here:
Is where i can see the internal components of the same model.
Have you done something like this?
So, my question is, what other considerations should i have in orde to start this project?
Thanks!
Not everyone on this forum is very happy with the reliability of Bluetooth, especially when gigging in all sorts of venues (WiFi interference, for example).
If you build the software and hardware (more or less) yourselves, make sure there are well defined ‘dead’ zones for fully engaged, non-engaged and center. Otherwise the (MIDI?) output will be wobbling around the correct values.
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Thx a lot. Yes, bluetooth can have such downsides, and my previous whammy project has the ability to work via usb besides the BLE option, but as is intended to be installed in the body of the guitar, i would prefer the wireless option.
Im just a hobbyist so its not for professional use, but for the new project, i consider the usb connection due to the floor location.
About deadzones, you are totally right, actually the potentiometer i use has a total of 60 degrees of movement and the last 7.5 on both ends are not producing signal.
I can use this information and to position the potentiometer on the device and try to lock the pedal movement in such endings.
I also assume the pedal as it is (i still need to buy it) will have more than 45 degrees of movement, so probably this will be the most important limiting factor to consider
Other than that, my code is working and i just need to make the stuff to fit inside
Thank you for the feedback!
