My expression pedal isn't working.

When using an expression pedal with Looptimus, make sure you have calibrated the pedal. Before the Looptimus is plugged in, hold down the 3 and 6 buttons. While you are holding them down, plug the Looptimus in to power it up. Continue to hold 3 and 6 down for 5 seconds until the LED screen reads E0. Plug your expression pedal in. Set the expression pedal to its lowest point, then hit the Next button on Looptimus. Then press the pedal to its highest point, and hit the Next button again. Now your expression pedal has been calibrated with Looptimus.