a midi knob box for the GP-10, GR-55, GT-100, SY-300, VG-99
"V-tone" an Arduino Teensy LC project,
a midi controller knob box to control Preamp and Equalizer parameters in the Boss GP-10, GT-100, SY-300, and Roland GR-55, VG-99.
The project uses an Arduino Teensy LC, 3 x '16x2' I2C LCD displays, 12 x 10k ohm linear potentiometers (initially), a 4N25 opto isolator, two push buttons, and a few descrete resistors and capacitors.
You can follow a project blog at VGuitars Forum
http://www.vguitarforums.com/smf/index.php?topic=15997.msg114829;boardseen#new
2015 Colin Willcocks (A.K.A gumtown)