Circuitbenders Forum

Circuitbenders Forum => Circuitbending discussion => DIY Synths => Topic started by: Dylan on July 28, 2009, 09:51:10 PM

Title: Simple Sequencer Schematic
Post by: Dylan on July 28, 2009, 09:51:10 PM

Can anyone point me in the direction of a nice sequencer schematic? I've never made one, so if there's one that's a good beginners one, that would be awesome.

Title: Re: Simple Sequencer Schematic
Post by: Gordonjcp on July 28, 2009, 10:18:19 PM

http://www.synthdiy.com/show/tags.asp?tag=schematics (http://www.synthdiy.com/show/tags.asp?tag=schematics) has a bunch of sequencer circuits.

About the simplest *analogue* sequencer you could make would be a clock generator, a counter, and a 1-of-n multiplexer switching between some pots to set the level.  Another approach would be to use the PWM outputs of a microcontroller to generate several analogue voltages (with appropriate filtering to stop the PWM frequency breaking through) and doing the controls in software.

Title: Re: Simple Sequencer Schematic
Post by: LoFi-Ninja on July 29, 2009, 01:00:44 AM

Well the Baby10 is THE simplest.. Gate and CV out..

Title: Re: Simple Sequencer Schematic
Post by: manufactured zero on July 29, 2009, 02:24:49 AM

Here's some simple 555 trigger and 4017 sequencer info for you. I can't remember where i found them so can't credit the makers but this should serve as the bare bones of a simple 2 to 10 step sequencer. I've never tried using one to trigger notes on anything, just for drum machine triggering.

(http://i77.photobucket.com/albums/j41/verminromance/Untitled-1.jpg)

(http://i77.photobucket.com/albums/j41/verminromance/4017SEQUENCER.jpg)

i ignore the 555 part of the sequencer proto board as i prefer to build them seperately in the event of a cock up in there along the way.


Hope this helps  :)

Title: Re: Simple Sequencer Schematic
Post by: Dylan on July 29, 2009, 02:54:47 AM

Thanks everyone!

Title: Re: Simple Sequencer Schematic
Post by: Circuitbenders on September 23, 2009, 03:23:43 PM

check out the sequencer on this thing, it looks prety simple and useful

http://www.synthdiy.com/show/?id=363 (http://www.synthdiy.com/show/?id=363)

Title: Re: Simple Sequencer Schematic
Post by: Sam_Zen on September 25, 2009, 06:01:43 AM

Thanks Circuitbenders .. That site has a nice collection of datasheets too .

Title: Re: Simple Sequencer Schematic
Post by: Jayman9er on January 13, 2010, 10:39:17 PM

music from outer space has loads of DIY projects there are a couple sequencer schematics as well as some other very interesting stuff. IF you have not been there i recomend this site there is a wealth of information
 :o