Seems like having 2 Molecular Disruption Devices (thread disappeared in the crash but you can check it out here (http://www.davidrolo.com/effects/molecular-disruption-device-spin-semi-fv-1-based-multi-effect/) ) with 8 programs each was getting too little ... so I decided to build another one. Since I did not need the expression pedal and tap switch as much as I would have thought I made a new layout for a smaller version.
Same circuit as the MDD minus the tap switch, tap switch option control and expression pedal input.
(http://www.davidrolo.com/wp-content/uploads/2016/12/DSCF0261.jpg)(http://www.davidrolo.com/wp-content/uploads/2016/12/Untitled.jpg)(http://www.davidrolo.com/wp-content/uploads/2016/12/MDDjunior.png)
Quite happy with the smaller footprint and reduced number of options (choices, choices ...)Had built it a while ago but having been busy moving to a new house I had no time to post it yet.Also some patches I have been working on:
"Build of the year" contest is here:
http://www.madbeanpedals.com/forum/index.php?board=89.0 (http://www.madbeanpedals.com/forum/index.php?board=89.0)
Ooooh! Nice!
Somehow I missed that YouTube clip from August but wow, those patches sound fantastic David. Any plans to add them to the zip on your site? I loved the dynamic vibrato and the particolay.
The pedal looks great by the way!
Looks and sounds great! I've got an MDD that will get built sometime soon.
Are you selling the PCB and programmed chip?
Just ordered some supplies for SMD/SMT soldering. Also, a few practice boards off ebay.
Now I'll be all set for projects like this!
That all sounds great, but the glitch delay and the ring mod are just killer. I might have to explore this fv1 thing soon.
Quote from: kinski on December 06, 2016, 06:50:56 PM
Are you selling the PCB and programmed chip?
Selling programmed chips would be too much of a hassle for me and I would need to charge way more than you could imagine :-)
But the PCB's I could, if there is enough interest
Holy crap that glitcholay and pitch glitch are soooo cool. I need that in my life.
Posting interest in the pcb :D
I'm gonna need some of these.
I'd love one of these to start playing around with. +1 on the PCB interest.
really need to go into commercial operations with stuff like this, its really amazing.
Very interested in a pcb !
Quote from: LaceSensor on December 07, 2016, 11:32:55 PM
really need to go into commercial operations with stuff like this, its really amazing.
For real! I would buy one! In fact, if you would consider selling a complete pedal pm me ;)
If programming the chip isn't too hard, I'd order one too!
Holy Crap!
Good for a few boards
This is awesome work as usual dude.
I'd buy a PCB or two (bet you knew that already though eh ;D)
Thanks for your comments and for your interest in PCB's
I am going to organize a group buy for these but I am still figuring out some details.
Mainly the issue of the mini rotary 8 position switches needed.
(http://i1277.photobucket.com/albums/y492/drolobucket/b51179a9-fee1-4a8e-8e9a-ad229cd3a9d3_zps3e68aa85.jpg)
The source I had for these does not carry them any longer. They are much harder to find than the 2p4t ones that are used in many projects these days. I have some left but I am hanging on to them as they are great. I finally found another source and ordered some. Once I get them (china post) and confirm they are good I will be able to sell them with the PCB's. If not I will need to find another way (possibly redesigning the PCB for more common switches)
I will keep you posted
P.S. if anyone would know where to find these from a reliable source that would be great.
I have not found out yet who makes these. The model seems to be called SR16. (incidentally I saw in one of Keeley's shop movies that he uses them in his FV1 pedals ... perhaps I should just ask him ...)
Interested in PCB! Great stuff!
Love this switch, which I used in the Brazen Bull. Very high quality and actuation feels great. Downside is price and fitting with 9mm pots.
Thought about a push button and electronic switching? Maybe a rotary encoder ...
(http://www.mouser.com/images/alphataiwan/images/SR1712F_series_DSL.jpg)
http://www.mouser.com/ProductDetail/Alpha-Taiwan/SR1712F-0204-20F0A-N9-N-027/?qs=%2fha2pyFadujuSFdWxZdTftuAGiL2g07Y50gwMqkHPksxFlt6OtAZLA%3d%3d (http://www.mouser.com/ProductDetail/Alpha-Taiwan/SR1712F-0204-20F0A-N9-N-027/?qs=%2fha2pyFadujuSFdWxZdTftuAGiL2g07Y50gwMqkHPksxFlt6OtAZLA%3d%3d)
FYI Group buy: http://www.madbeanpedals.com/forum/index.php?topic=24756.0
:-)
Wow what a great project again!
Egad. Brilliant design, love it! Must have a pcb! 8)
What do you guys recommend for programming the chip? Some piece of hardware to connect to the computer, I imagine.
Quote from: kinski on January 26, 2017, 01:34:34 AM
What do you guys recommend for programming the chip? Some piece of hardware to connect to the computer, I imagine.
I love my Pickit 2 and/or 3 .. Its simple and works on PC & Mac
I actually own them both and just use the one that is on my bench at the time.
Cody
Thanks! Do you recommend any specific software as well? Sorry, new to all this programming stuff.
Quote from: kinski on January 26, 2017, 03:02:00 AM
Thanks! Do you recommend any specific software as well? Sorry, new to all this programming stuff.
- First you will need something to write/create the programs. If unlike me you are a programming wizz, you can do it in a simple text editor. Otherwise you can use SpinCad, a software developed in open source by Digital Larry:http://holycityaudio.com/forum/
This allows you to create patches in a visual environment (patching blocks of code together that represent a function, like a filter, a delay etc)
Actually you don't even need to write your whole programs, there are a lot of great programs to be found on the SpinSemi website and especially their forum.
- Then you need to compile these programs (called ASM files ) into a HEX file that the FV1 chip is able to interpret.
Compiling the HEX file from ASM programs can be done with the SpinASM software available on the SpinSemi website.
If you are using SpinCad, the last version is able to generate a HEX file as well.
- And finally you need to flash that HEX file to an EEPROM (usually 24lc32a but can be others too)
For that, as suggested a pickit 2, 3 or even a cheap chinese clone thereof will work fine.
(note: I am absolutely no programmer and very new this as well so sorry for my simplistic and naive explanations ;) )
Thanks! Exactly what I needed to know!