Expression Pedal TRS Input Requirements

Hello,

I am working on a project that is for right now going to be a couple of footswitches and an arduino to use as a MIDI controller for a program i use. I would like to somewhat “future proof” my design as in the future I will likely want to be able to plug in an expression pedal with a 1/4" TRS input jack and was having some difficulty sifting through information as to what exactly I would need.

Do I simply just need a TRS input jack? A TRS jack with a pot that matches the resistance of the pedal? Etc?

Thanks for any advice you might have

This is not an Arduino topic. Try to find assistance in a MIDI forum first.

DrDiettrich: This is not an Arduino topic. Try to find assistance in a MIDI forum first.

It is.

An expression pedal is just a potentiometer, you can connect it to the Arduino like you normally would (left pin = sleeve to ground, wiper = tip to analog input, right pin = ring to Vcc).

|500x182

Pieter

PieterP: It is.

An expression pedal is just a potentiometer, you can connect it to the Arduino like you normally would (left pin = sleeve to ground, wiper = tip to analog input, right pin = ring to Vcc).

|500x182

Pieter

Perfect! Thanks for the help Pieter! I was reading that article earlier and appreciate them sharing the info.

Somewhat of a side note, should the arduino/my desktop usb port be able to handle half a dozen leds, the board, the expression pedal power wise? I was hoping to only have a single (micro usb) cable running to the board? (I plan on trying to check the current usage on a DMM when all my parts arrive)

Any guidance is much appreciated, thanks again

bmoe24x: Somewhat of a side note, should the arduino/my desktop usb port be able to handle half a dozen leds, the board, the expression pedal power wise? I was hoping to only have a single (micro usb) cable running to the board? (I plan on trying to check the current usage on a DMM when all my parts arrive)

A few LEDs won't be an issue.