DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Freppo on December 10, 2018, 09:04:14 AM

Title: New DIY project released! The 1985 Guitar Synth
Post by: Freppo on December 10, 2018, 09:04:14 AM
Hi folks!

I'm releasing a new Parasit Studio DIY project today - The 1985 Guitar Synth

It's an Attiny85 based square wave fuzz with both octaves down, octaves up and detuned modes in both directions.
The octave up oscillator is based on a frequency counter and can get very glitchy sounding, like a dying R2-D2...  ;D
It also has a fun hidden extra feature that has something to do with the year 1985...


I'm not entierly happy with the demo. So many octave combinations that I didn't touch. But you get the idea. :)

I hope you like it!

You can find more info, PCB, pre-programmed chips, schematic, hex-files ect. at:
www.parasitstudio.se (http://www.parasitstudio.se)

Here's a gutshot
(https://i.postimg.cc/gr8t49X0/198502resized.jpg) (https://postimg.cc/gr8t49X0)

Cheers
/ Fredrik, Parasit Studio
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: rankot on December 10, 2018, 09:25:16 AM
Lovely! Reminds me of a childhood!
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Joncaster on December 10, 2018, 10:43:35 AM
This made me go put two Attiny85's in my cart for my next parts order!

So cool, thank you!
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: thermionix on December 10, 2018, 01:32:18 PM
Quote from: Freppo on December 10, 2018, 09:04:14 AM
It also has a fun hidden extra feature that has something to do with the year 1985...

QuoteThere's also a hidden feature! Hint: It will activate at power up (or by pressing the optional reset switch) if the octave switches are set in a certain position...

Does it start playing cheesy hair metal power ballads?  That's about all I can remember from 1985.
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: digi2t on December 10, 2018, 01:40:08 PM
Nice! Sounds so...... so...... Schumannesque.

I'm a sucker for a noise maker. They are to me, what yarn is to a cat. :icon_mrgreen:
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Freppo on December 10, 2018, 02:30:13 PM
Quote from: thermionix on December 10, 2018, 01:32:18 PM
Does it start playing cheesy hair metal power ballads?  That's about all I can remember from 1985.

No, but that would be pretty funny...
I guess you will have to build it to find out.  8)
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Freppo on December 14, 2018, 04:54:35 AM
Complete DIY kit now avaliable at Musikding  :)
https://www.musikding.de/1985-Guitar-Synth-kit

Cheers
/ Fredrik
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: thermionix on December 14, 2018, 02:44:07 PM
I remembered something else from 1985.  Back to the Future.  Do we get to hear the sound of a flux capacitor?  An exploding speaker cone?  Or are we talking actual time travel?
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Freppo on January 14, 2019, 11:21:48 AM
The 1985 Guitar Synth hidden feature revealed...

You can probably guess what it is just by looking at the video thumbnail. :)


Coding the hidden feature actually took alot of time. The actual guitar effect code took less then 10% of the program memory, but the tune itself took needed all the remaining space. I even had to cut down the track to make it fit.

I hope that you enjoy the novelty feature. :)

More info, PCB, schematic, pre-programmed chips, HEX file ect. avaliable at:
www.parasitstudio.se (http://www.parasitstudio.se)

Cheers
/ Fredrik

Quote from: thermionix on December 14, 2018, 02:44:07 PM
I remembered something else from 1985.  Back to the Future.  Do we get to hear the sound of a flux capacitor?  An exploding speaker cone?  Or are we talking actual time travel?

Haha, good guess, but you missed the obvious giveaway on the pedal graphics..  ;D 8)
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Paul Marossy on January 14, 2019, 11:29:16 AM
Cool. 15 years ago I wanted to make a guitar synth that can get that Pat Metheny sound, but I think I went about it the wrong way. I still would like to do that one though... maybe I ought to re-visit that project.
Title: Re: New DIY project released! The 1985 Guitar Synth
Post by: Freppo on January 15, 2019, 04:33:03 AM
Anyone got suggestions for another midi song that would be fun to have in a pedal?  ;D

Quote from: Paul Marossy on January 14, 2019, 11:29:16 AM
Cool. 15 years ago I wanted to make a guitar synth that can get that Pat Metheny sound, but I think I went about it the wrong way. I still would like to do that one though... maybe I ought to re-visit that project.

Cool. You should go for it. :)