Step sequencer
This project is similar to the cam shaft sequencer minus all of the moving parts.
I’m still working on getting all of the circuitry right.
There’s a sample at the bottom of the page that I made using the sequencer to control a casio SK1,an analog bass drum synth and an analog noise synth.
There’s also a casper built echo circuit in there.
Here are some pictures of the first prototype.
The sequencer is made up of four rows of 10 switches.
There are four different sequences that can be programmed using the switches in that row.
The left most column is an on/off switch for each row. The right column switches between “short” and “long” mode for each row. In “short” mode, the sequencer creates one 50% duty cycle pulse per step. In “long” mode the sequencer outputs a 100% duty cycle pulse per step. So it will string two or more pulses next to each other into one long pulse the image below should clarify.
Here is the most current schematic.
