After getting my hand on a Korg sq-1 sequencer, I realized that one thing that I would love to add was the possibility to save and load a sequence. The idea was to take some motorized potentiometers to create this unique analog sequencer. After taking some inspiration from the Look mum no computer sequencer tutorial. It was time to build it

In terms of features, it’s quite close to the Korg sq-1, with only 8 steps.

On the front panel you can see:

• Cv-out (0-8V) + gate out signals
• sync in and out
• 8 motorized potentiometers for steps
• 8 individuals buttons to enable/disable steps
• gate on/off and active step mode
• speed control via a potentiometer
• save and load button and select potentiometer to go through the 8 possibles sequence and an additional random sequence
• simple 12 segments display

Inside the sequencer, an Arduino Mega Pro Mini control the whole system. To drive the motor I put some cheap MX1508 dc motor driver and all the LEDs are single Neopixels put in daisy chain.

The sequencer has an aluminum front panel made by PCBWay and its case has been designed in Fusion 360 and 3d printed. I chose to give it a unique paint job trying to replicate the dazzle camouflage used by some boats during WW1.