Author Topic: School me on fvduino  (Read 2847 times)

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School me on fvduino
« on: July 16, 2021, 09:36:54 AM »
Hi huys

I have some exprerience with the Spin FV-1 and Arduino and just found out about fvduino (https://github.com/n3ws/fvduino) that looks like a really really fun project

Has anyone built it yet? Are there any eagle files for the board for lazy guys like me?

Or even better do you know if it is available as a kit or something similar???
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niektb

Re: School me on fvduino
« Reply #1 on: July 16, 2021, 03:34:32 PM »
It's not really a plug-and-play schematic from what I can tell (removing power supply booster from OLED screen?) so I'm not sure if I would try it if you're just starting out... But do you have a FV-1 chip? They are more or less impossible to get from what I heard :)

Blackaddr

Re: School me on fvduino
« Reply #2 on: July 17, 2021, 06:46:36 AM »
If you're just getting started with DIY DSP effects, consider options that give you the smallest barriers to entry. Ie. super easy to program, and the less circuit design you have to do the better (if you want to have something that is low-noise and safe to connect to other 9V pedals). Mixing digital and analog circuits is much more difficult than pure analog guitar pedals.

I've found using the Teensy Audio (uses the Arduino development environment) provides a very easy way to get started with digital effects. I make an audio board for it that handles all the extra complexity needed when you mix guitar impedances and 9V circuits wtih CODECs. The schematic is freely available in case you want to tackle you own designing if you're already very skilled in mixed-signal audio PCB design.

https://www.tindie.com/products/blackaddr/arduino-teensy-guitar-audio-shield/
Blackaddr Audio
Digital Modelling Enthusiast
www.blackaddr.com

changes

Re: School me on fvduino
« Reply #3 on: July 22, 2021, 11:48:11 AM »
I do have a couple of FV-1 lying around and have a small experience programming it.

I'm just wondering if there's a ready to print pcb or even better a kit for the fvduino.

Also does anybody know if it is possible to load your own algorithms ?
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potul

Re: School me on fvduino
« Reply #4 on: July 22, 2021, 12:30:55 PM »
sure, you can find the programs in spinsemi.h

BTW, if you are interested, there was a similar project using an ESP2866 that enabled using wifi to upload programs to FV1 using the same approach of emulating en EEPROM.

https://www.diystompboxes.com/smfforum/index.php?topic=126087

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Re: School me on fvduino
« Reply #5 on: July 27, 2021, 06:55:23 AM »
sure, you can find the programs in spinsemi.h

BTW, if you are interested, there was a similar project using an ESP2866 that enabled using wifi to upload programs to FV1 using the same approach of emulating en EEPROM.

https://www.diystompboxes.com/smfforum/index.php?topic=126087

Thank you potul!

I think I saw that mentioned in a post but always thought it would be a harder project to take on, at least for me. I might give that a try as well though
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mark2

Re: School me on fvduino
« Reply #6 on: August 02, 2021, 09:27:03 PM »
Also does anybody know if it is possible to load your own algorithms ?

You can find a bunch gathered from folks on this and the spinsemi forums here: https://mstratman.github.io/fv1-programs/

You can program them with a cheap (~$6) CH341A EEPROM programmer.

It's not really a plug-and-play schematic from what I can tell (removing power supply booster from OLED screen?)
If you want challenging but doable build similar to this, Mimir's Well is another option: pedal infopartial kit (couple week lead time right now).  It's all on github too if you want total DIY.

changes

Re: School me on fvduino
« Reply #7 on: August 05, 2021, 10:24:38 AM »
Thank you Mark!

Mimir's Well looks super interesting as well. I might try it first


Also does anybody know if it is possible to load your own algorithms ?

You can find a bunch gathered from folks on this and the spinsemi forums here: https://mstratman.github.io/fv1-programs/

You can program them with a cheap (~$6) CH341A EEPROM programmer.

It's not really a plug-and-play schematic from what I can tell (removing power supply booster from OLED screen?)
If you want challenging but doable build similar to this, Mimir's Well is another option: pedal infopartial kit (couple week lead time right now).  It's all on github too if you want total DIY.
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