sidmonster

Hello, It's time to let go of the SID chips I was saving for MB-6582, I have finally accepted that I will never have time to complete the project, so I would rather see these (now) rare chips making music in someone else's box, rather than sitting in my bin forever.... I have four with matching date codes that I purchased on this forum in 2011. I also have one that I pulled from a c64. I would like to sell the 4 matching chips for $30.00 each. If someone wants to purchase all of them, I've got some Midibox goodies (unpopulated DOUT module, 8 bit core, and some bourns encoders) that I will throw in as a reward for making my life easier. Thanks! PM me if interested. UPDATE: I also have some unpopulated SID2SID pcb's (allows you to install 2 SID chips in a c64 for stereo or 6 voice polyphony with MSSIAH/Prophet64) that i will not be using. So I'll include these with the goodies.

Hello T.K. I have not used my Stereo MB-SID for a while and I could really use the money to help buy equipment for my video production company. It has two 6581r4, PCB's from smash and a custom built full control surface/enclosure built by me. I calculate that I probably have at least $250.00 in parts, the Control Surface and Enclosure alone cost me around $150.00 to produce (not including the mistakes and revisions I went though until I was satisfied) I plan on asking $250-300 for the unit. I really appreciate all that I have learned through this project and I am posting the eagle files for the control surface in case anyone else can use or learn from them. May I please have permission to sell my MB-SID v2? Thanks ~SID 4x20.rar

apc uses encoders, no such thing as an endless potentiometer. You can set the MB64 to use encoders in fast mode which will create the behavior you're looking for

I think the MIDIIO128 application would the the best midibox project for what you're trying to do. It's very easy to drive relays with this app and map them to midi notes. V3 runs on the new midibox corelpc17 which has built in midi-usb so it will plug directly into your computer.

I see the newest version uses the midibox 64e firmware! I think this is a good choice so you can spend your time developing hardware instead of software!

1. What is the recommended value for Panel mount Pot's Rotary and Slider? For Pic based core it is 10k For STM or LPC based core it is 1k (better performance with the limited 3.3v) 2. What type of push buttons would be recommended for just On off functions? Possibly a mouser part# because i am having no luck with that You want momentary buttons (normally open) most people use tactile switches which produce a tiny "click" when depressed. If you want the button to function as a toggle (push once for on, push again for off) you can set this up on the software side. 3. If the recommended value for the panel mount pot's is indeed 10k linear. Could i possibly get an explanation for this or a point in the direction of where i might have missed this. Thanks in advance for any help. :frantics:

My forum status says newbie because I don't have many posts, but I'm pretty knowledgeable about MBSID I designed and built one with full control surface so sammich is simple... PM me with the youtube link and description of your problem and I'll see what I can do to help.

I have built some aout lc and I'm going to use my mbsid with my modular. My modular runs on +-15v is it necessary to use buffers when I trigger my modular adsr generator or if I'm sending pulses to clock my sample and hold module?

Hey TK, I am building a breakout for the gates on my MBSID and MBSEQ, i would like to include the buffers like you have done. Where can i find schematics for this?

LPC17 to be exact.

Yeah, I changed the frontpanel layout on my MBSID a few times and it only cost me about $30.00 each time to have ponoko cut it. Now that I've finally settled on a design and used it comfortably for a month, I am ready to have it machined out of aluminum. The easiest way is to export a .svg from FPE and import it into illustrator or inkscape to change the line weights for ponoko.

MOODOG, I have tried making panels first and then making the PCB later and that never works, the easiest way for me is to do my Control Surface in Eagle and then export an image from Eagle and bring it into adobe illustrator which is where I layout my front panel, I use the image that i exported from eagle as a background for my illustrator layout so i just draw my cutlines for the front panel right over top of the component outlines from the eagle image. Why don't you prototype your frontpanel with laser-cut acrylic from ponoko? It will cost very little, and if you're happy with the result, then you can be confident when you drop $250 on the nice metal panel from FPE.

16 shift redisters for din and dout =128 inputs and outputs 64 analog inputs via ain

Your cable from core to AIN looks very unstable. You should remake that cable and clamp it down this time so we can rule that out as the culprit.

Thanks for the idea, but this is not the same. Let me explain: In some applications (like MBSID) J5 can be used for 8 additional digital inputs. The thread you are referring to describes a workaround to use switches with analog inputs and configure the synth or software you are controlling to read any value above 64 as a button on/off press. The problem is that not all synths or software have this option, so it will not work in every case. So, pehaps someone else knows the answer to this question about additional inputs on J5?

link not working?

TK, from the 64e page: "On a full-stuffed MIDIbox64E with 64 rotary encoders all 128 inputs are allocated by the rotary encoders like shown in this diagram. A later version of the application will provide 8 additional inputs at port J5 of the core module for connecting 8 buttons." Is this currently working? If not, do you still plan to do this? I searched the forum for the answer with no luck, so I thought it a good idea to ask here in case someone else has this question in the future. Thanks!

TK, I am really enjoying my MB-SID and I would like to thank you again for such a wonderful project. I have been using the lead engine with LFO modulating the filter to make some fat dubstep wobbling basslines! I would like to be able to have the LFO rate divisible by triplets, currently it can only do 1/4, 1/8, 1/16, 1/32 etc... I remember in a previous thread you said you would add this in an update but a new RC was released since then and it still behaves the same. Is this something I can change, and if so how? Thanks!

Hello, I have been using eagle for my control panels for the past few months and one thing I've not gotten the hang of is how to arrange led's in a circle, they always come out kind of looking like an octagon rather than a circle, I can do it if I set the grid to "finest" but I want to make sure they are all evenly spaced. Does someone have an eagle part library with led circles or is there some trick people are using?

You should just build a 64e with the 8-bit pic based core. There is no complete 32-bit project yet. The purpose of LC is to emulate mackie control, it seems like you want more of a custom solution. 64e will allow encoders, leds and pots in anyconfiguration you want. If you need more than 128 inputs use another core or use a matrix.

sorry, he said 7805 and that's a 5 volt reg, I'm not familiar with the pic burner...

You are regulating 18 volts down to 5! It doesn't surprise me that this generates heat. Why not try a battery or power supply that is closer to 5 volts?

Without the source code it would be very difficult to make improvements.

You cannot use pots in place of encoders in the LC project, you have to keep in mind that this is a mackie control clone, which uses encoders. To answer you second question about how to connect pots, they are analog so you cannot connect them to DIN (DIGITAL input) you must connect them to AIN (ANALOG input) or you can connect them to port J5 on the core module. why would you want to use pots for panning anyways? the only advantage would be a visual indication of position, but this is why there are LED rings around the encoders on LC. Also, when you jump over to your next bank of tracks, the pot is no longer in the correct position for the new channel, this is why encoders are superior and the preferred choice, and the only supported choice for LC (which can control unlimited banks of channels, in groups of 8)

use 1/4 mono, and forget making them balanced, there's not much advantage with balanced outputs in this application. Just have one 1/4" mono trs for each sid, and then a master L/R pair for the "Mix out" This will give you lots of routing flexibilty to add different effects to each sid. 3.5" sucks, the only time you would use this is for headphones. RCA is lame too because you'd be using all kinds of adapters to hook it to a mixer.