The Strymon Timeline delay effect pedal features a 30-second looper. To control the delay effect and the looper simultaneously I built a pedal equipped with an Arduino nano that remote controls the looper via MIDI.

My pedal has four stomp switches to control these functions of the looper:

• Record
• Play
• Stop
• Reverse (second page)
• Half speed (second page)
• Undo (second page)
• Decrease looper level

• Arduino nano
• Housing type BB
• 4x 1PST momentary footswitch
• LED red
• 2x LED yellow
• 3x LED bezel
• 5x resistor 220 R 0.25 W
• DIN jack 5 poles
• DC power jack

1. Download and install PlatformIO IDE.
2. Clone this repository.
3. Open the cloned repository in PlatformIO IDE.
4. Connect Arduino nano to computer.
5. Click 'Upload' in PlatformIO IDE.