Magpie Devices

Rap Robot User Guide


Hello, and thank you for supporting Magpie Pedals and getting yourself one of my effect pedals! Please feel free to use it with guitar, bass, synths, vocals or anything in between.

The pedal uses 9VDC power (2.1mm jack: center-negative).

Input is on the right side (black ring) and output is on the left (white ring).

Rap Robot

Triple Bypass (left Footswitch):

This pedal uses a unique bypass switching system that I call “Triple Bypass”, where you have three different “modes” for turning the pedal on and off:

  1. Short Press: Works like any regular pedal. Press to turn it on and then press to turn it off.
  2. Momentary/Hold: If you press and hold for about 1-2 seconds the pedal will enter a hold mode. Here it will simply stay in the state it entered when pressing down the button, for however long you decide to hold down the button, and then return when you release the button. So if you press down when the pedal is turned OFF it will stay ON for as long as you hold the button pressed down, and vice versa.
  3. Tap Tempo Bypass: If you quickly double tap the bypass button (either when on or off) the pedal will enter the Tap Tempo Bypass mode. Here the pedal automatically turns itself on/off in whichever tempo you tap. So to change tempo you simply tap a new tempo.

N.B. **Rap Robot* continuously counts the time since your last tap. So if you have been in a tempo for some time and give the footswitch another single tap, it will set your new tempo based on the time between the pervious tap and the new tap - upto a maxium length of around 1min.

To exit Tap Tempo Bypass you simply press and hold the button for about 2 seconds. Note that when exiting this mode the pedal will be ON (regardless of if the pedal is in an OFF or ON state).

Controls:

Top-left “W” knob: Wet volume. The pitch shifted signal coming out of the Rap Robot.

Top-right “R” knob: Robot signal volume. Another output of the Robot IC that is like a sample reduced variant of the same signal. Sounds very robot.

Bottom-left “S” knob: Speed for the arpeggiator.

Bottom-right “C” knob: Circuit bend/clock speed. We put a LTC1799 inside to set the clock speed that the robot IC is running on (classic circuit bend). Slow it down to slow down the robot.

Central “D” mini-knob: Dry signal volume.

Star Switch”: Mode for the arpeggiator. Go between Up, Down, and Up-Down.

Right Footswitch”: Controls the arp. Hold to go between manual and tap tempo mode.