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technobreath

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  1. By the way, why is it not possible to use the 32 core?
  2. Thanks for response! nILS, I'll make a drawing of my box and post it soon. I guess I will have to take my time studying wire diagrams and schematics. The answers is helpful. Also nILS, is it you who distribute the GM5 5x5 boards? I edited a wiki page for a order of a spare board from the first shipment, but I am unsure if it was done correctly - and do you send the PM in this forum with pay info? I read your rules - no whining :) - don't mean to whine, just making sure I did it right :). Good rules. For powersupplying the motorfaders - can I just put in a 7812 in the powersupply schematics and grab som juice from there or would it be better to build a seperate psu cuircut for this purpose? Or better, is there any existing ready-made PCB for this? Thanks! :) EDIT: I had a look at the MF schematics, there was the PSU diagram, must have overlooked it before... :)
  3. I have begun getting together some parts for the project now. Today at work I salvaged some used transformers used for alarm panels that were thrown away, I grabbed 4 of them. They are 230primary, 12volt secondary and 1,5 amps. My question is related to the powersupply schematics found in the documentation over the core modules both PIC and STM32. - The schematics says 7-10 VAC input. Will the regulators become too hot if I feed it with the 12 volts or so that these transformers output? - Should I use a 7809 before the other regulators to do the regulation in two steps? If not the regulator would be forced to eat up to 7-8 volt... Any thoughts? - Is 1,5 amp enough? It says 500mA at the schematics, but can I drive a midibox LC with 16 motorfaders from this powersupply alone or do it need upgrades? - Is there any way to calculate (or can someone tell me) how big surface the heatsink on the regulators should have to adapt to the conditions in my box? I also salvaged some pretty heatsinks from the alarm panels. If I should guess I would say they are 3mm thick, has a surface about 6 times the size of the regulator itself, and it has fins on all four corners. It is made for this purpose - I plucked them of 78xx regulators on the alarm boards, but are they big enough for this box? - If regulators is to be too hot, what kind of regulation should I then use as alternative to 78xx? All comments appreciated very much!
  4. Hello guys. Just to introduce myself; I used to be active in this forum many years ago, but had to give up my MB SID project because I got sick and had to more or less put my whole life on hold. I sold or traded off all the parts (SIDs, PICs, everything...) Well, I'm back now :) Things and interests have changed since I last was here. I now spend most of the time as a musician in my (home)studio. Used to do gigs, but I haven't got the time anymore - housebuilding, knocked-up wife etc. Lets see... at the time of writing this I am 27 years old, I have had electronics as one of my hobbies on and off for at least 15 years. I have never taken any electronics classes. All I know I have learned from my dad, school books and internet forums about electronics. I have built several electronic stuff over the years, but never designed any complicated cuircuts myself. I've played around with simulation program with more advanced electronics, but never built any advanced stuff. It's more like FM senders and stuff like that. I once built a high power PWM controller with >100A mosfets as a motor controller for some fans in my old car. I designed it myself, but it took a LOT of time, so I am no expert at all, but I understand a lot when explained, and I know the basics. My original career plan was electronics engineer, cybernetics and stuff like that, but as I mentioned I had to put my life on hold. When I got back on tracks I felt like doing something that could make me some money sooner rather than later, and I took some classes to become a carpenter :). However I have never worked as one hehe. When school was finished I got an offer to start in the family business as a alarm / security technician. I have been there for the past 4 years, now working as a tech manager. I usually spend my days planning / designing complete security systems - CCTV, alarms, access systems, etc. Occationally I do some sailswork too. OK, enough about me, sorry for such a long intro, but now you know my background. :) I will not write such long posts more :) Now to the case: I am going to build a MB for my homestudio to control the cubase mixer and transportbar. I understand a MB LC system would be perfect. I want to make it myself to fit my needs, and want to learn more about it, so that is why I thought of TK's projects once again. I was imaging the following specs: - Display showing transport location(bars) and tempo. - Transport bar with buttons: Rec, Play, Fastforward, fastbackwards, goto-start, goto-end, stop and a jog wheel. - One strip of EQ controls for cubase mixer to control all strips viritually - encoders or pots for 4 bands of eq and 4 sweeps plus buttons for activating the eq bands. - 16 strips if possible. Fader + buttons: select channel, record, solo, mute, monitor - One strip of FX controllers - One strip of Insert controllers - LCD display and menu buttons This is what I imagined, but I am not sure if it's possible. Can this be done or am I totally off the track here? Any ideas on my specs list? What to add, what to take away? Also another question - what is ledrings usually used for? I mean - I understand what they are, but what are they usually showing information about in such a controller? And what buttons would it be usefull to acompany with leds? I also want to connect two relays to DOUTs to control different things such as record in progress sign outside the room etc. I would also like the possibility to attach standard gooseneck lights to the desk. If the specs can be realized, what modules do I need? Thanks for any input :)
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