i’m also interested in the reply, as i’m building a pedal extension to my midibox. Thus 2 pots and 2 buttons can be controlled by foot. (switch based with example provided on the website)
Some months ago I used a shielded cable which was longer that 3m w/o problems. At was a common audio cable for stereo, the shield should be used for the ground and Vss connection, the two wires for +5V (Vdd) and the AIN pin