basta73

18F452 I/P is definitely it, The banksticks I got were the 24LC256I/P, and I also got the 24LC512I/P, cause you never know what the future may bring.

Well, here's my plan. A combination LC/XT box with a 12V 2A power supply, and a heatsink on the 7805, and on the LM317's just for kicks. I also found an old tabletop-type adapter from an old laptop that I might use. 18v @ 4A, but I'll wait on that until I'm convinced it won't burn down the apartment. Aparently, I'm banned from causing electrical fires. Hey Steve! That LC of yours is coming along nicely. Mine is still in the wings, but I can't imagine I'll sit on it for too long.

That's the best part about the EDrum Midi module, each piezo can be calibrated with a potentiometer. It's really a pretty amazing module. Might be fantastic with a multiplexer that would allow its inputs to number up there with the MBHP.

For instance, 16 Motorfaders could use up to 2 Amps if driving all faders simultaneously. Is this right? But a power supply (12v 2A, for instance) would be too hot for the 7805. How are people with more than one MF module powering their devices? Am I the only one that doesn't understand this?

The Piezo triggers can be very cheap, and you can conceivably make something similar to the Roland HPD-15 (the surface at least). Using practise pads is only one way to go. The forum at http://go.to/edrum even has electronic drumsets made with pie tins. The EDrum design will also be upgraded to 16 inputs, which should be enough for most applications. The difficulty with Piezos sharing an enclosure, is that agitating one might trigger another. So experiement with different foams and such to isolate one piezo from another.

This is an interesting thread that should not be dropped yet. Most everyone understands that their Mega-Boxes have exacting power supply needs, but it seems few of us understand how to acheive the correct amounts. It seems you definitely should not need one power supply per core. Theoretically, how would you power four cores from one power supply? Does anyone know of a site for simplified explanations of power supply issues? Determining power supply needs? I'll stop here for now.

www.carillondirect.com

www.carillondirect.com

It's a dual pot fader. If you have a multimeter, it should be fairly easy to determine how to wire it, and you could ignore some of the pins if you only want to use it to taper in one direction, as opposed to tapering in both. One thing to keep in mind is that this is an AUDIO taper pot, not the LINEAR kind recommended for these midi projects.

For instance, an LC emulation with an XT extension for 8 more motorfaders (16 total) and related buttons; plus the addition of a good amount of analog potentiometers. A mega-midibox of sorts. This would require 3 cores (because you can't have AIN modules on the same core as Motorfader modules). Now to prove how confused I am... Disregarding the other MIOS modules (AIN, DIN, DOUT, etc.) what components are soldered onto the first core, that are not on the second and third cores? My assumption is that you don't have a crystal on each core, or am I wrong about this? I just thought that the master core would look drastically different than the slave cores, but I guess what you are saying is that each configuration has it's own pared-down slave core? possibly going batty ??? but maybe I'm just making things more difficult than they really are.

For instance, an LC emulation with an XT extension for 8 more motorfaders (16 total) and related buttons; plus the addition of a good amount of analog potentiometers. A mega-midibox of sorts. This would require 3 cores (because you can't have AIN modules on the same core as Motorfader modules). Now to prove how confused I am... Disregarding the other MIOS modules (AIN, DIN, DOUT, etc.) what components are soldered onto the first core, that are not on the second and third cores? My assumption is that you don't have a crystal on each core, or am I wrong about this? I just thought that the master core would look drastically different than the slave cores, but I guess what you are saying is that each configuration has it's own pared-down slave core? possibly going batty ??? but maybe I'm just making things more difficult than they really are.

In designing a box with multiple cores, which components are used only in the initial core. Having only one crystal makes sense, but what about the voltage regulators (7805)? Cansomeone list the components that are NOT to be used in the slave cores? Thank you in advance.

In designing a box with multiple cores, which components are used only in the initial core. Having only one crystal makes sense, but what about the voltage regulators (7805)? Cansomeone list the components that are NOT to be used in the slave cores? Thank you in advance.

Any thoughts on incorporating a touchpad into a midibox? I yanked one out of an old qwerty keyboard before i even thought about how to make it work within the project. I've seen some drivers out there for using it as a stand-alone device, but nothing quite so cool as having it embedded within a comprehensive control interface. With the progress that's been made so far, it just seems anything's possible.

In case anyone cares... A friend who shot photos for catalogs, said that when they shoot displays (computer monitor, backlit LCD, etc.): 1. They first shoot the device with the display turned off. 2. Then they turn out the lights, turn the display on, and shoot the image again. You need to stabilize the camera (tripod), but combining the images allows you to see the display without glare, and without compromizing the image of the device.

Would it be possible to utilize the MIOS platform to create a MIDI router? 8*8, ins & outs, like MIDEX8 or MoTU Midi Express lines. I think this may have been proposed before, but I could not find any info on it. I bring this up because of the low latency achieved by these projects. Anyone else interested in this?

As far as I know, the issue has to do with the resolution being 300pdi, but someone else should elaborate on this. The way I checked to see if the printouts of the circuits were correct was to lay the PIC18F452 over the printout, and see if the pins lined up with the holes for the pads. Does that help?

I've been searching for parts in the US also, and I've also found that most places don't carry everything. I've had most success looking at Mouser.com, and Digikey.com, They tend to have a lot of the smaller components, possibly all. Digikey seems to have a wider selection, though Mouser has shown the least expensive on key items such as Knobs. Mouser's website will show you the quantity they have in stock, which is especially nice. Go online and get their catalogs in print, if it helps you get a better idea of what components you need. Also, you can call them and they are pretty helpful. For passives (pots, switches, LEDs, displays) I've found Allelectronics to be decently stocked and reasonably priced! Get your PICs as samples from microchip.com; this will save you ~ $10 per PIC used! Keep asking questions if this doesn't answer what you need.

Anyone checked these chassis' out? hammond, from mouser... fairly econimical ;) http://www.mouser.com//index.cfm?handler=fra_pdfset&pdffile=716

So I didn't spend very long looking, but... while scanning the RE'AN website, I found knobs for the pots you want. The pots are called "Dual Concentric", and they are made by Bourns, CTS, etc. I don't know where you intend to buy from, but "Dual Concentric" is the key to getting what you're looking for. ;)

Well, I'm selling 16 Panasonic motorfaders, cause my girlfriend quit her job. Granted, her boss was the biggest loon ever, and it's great that she quit, but now we need dough, and the midibox is on hold for a while. Can't complain too much about that either, since this community rocks!, and Thorsten will probably be finishing up the midiboxCB (cerebral interface :o) by the time I get to building one of these. So here goes: Panasonic Motorfaders (# EVANMKP08B14), bought from Allelectronics.com. I bought them at $6.75 each, and want $100+s/h for the whole lot. I'll even throw in the extra one I dissassebled to try and figure out what the third track was for (labeled of course). I never used them, but I can assume they work, and I'll be reasonable if any, for some reason are DOA. That extra one might come in handy. email interest to... basta73@yahoo.com

Panasonic faders. I took apart one of the panasonic faders. Â I found that there's and extra track running alongside the pair of tracks that make the pot work. Â It has a hole along one end for a single pin to stick through.---------------0 Anyone think there's a way to use this to make the fader touch sensitive? If not, what is the extra track for? btw, nothing comes in contact with the track right now. would probably have to fuse something to the part of the slider that holds the slider knob.

I was wondering if anything revolutionary is in the works for storing banks. The manual switch is good, but is it very difficult to stack a bunch of the banksticks IC's in a row, and have the core view it as one large bankstick? or perhaps upgrading to a different storage chip? RAM? Just a thought.

Thanks a lot. That got me thinking that I could find a flat resistive material that would approach the 10kOhm resistance area (at the right length), and connect it directly to an AIN module off a midiboxNG. What do you think? It's an excuse to carry around a multimeter. ;)

I found this website called tapeswitch.com, where they sell ribbon switches, and I was wondering if this was the the same as those ribbon controllers on kurzweil machines. They have a bunch of different kinds. $50 min., custom lengths @ ~$16 ea. If anyone's interested.