SounDuke

well, I managed to let them work (disabled on the I_O table ^^) but still I have problems with the center led of the ledrings and the overload of the meters (8ledrings and 8 ledmeters, each of them 11+1 leds). It seems that everything is ok, if I'm not wrong an aftertouch event should start the automatic procedure of filling the bit in the pattern by Mproc.inc. The problem is that the aftertouch event I see in the output of Live is something else because it is outputted even when there's no clipping in the track. To Ableton Live MBLC users, can you see the center led of the ledrings and the overload meter?

Hi everyone, I'm experiencing some troubles with my MBLC that I suspect happen because of my 6V/2.5A toroidal not capable of make my MBLC stuffed with 2 2x40 LCDs and nearly 200 leds. After running for some seconds, it suddenly resets. What do you think? to have 3A I built the psu according to a schematic to connect in series 7805's which Smash kindly showed me. The reason for my suspect is that if I'm not wrong, the voltage decreases as the load increase over the capability of the transformer. The fact is that if I connect the secondary outputs of the transformer in series to duplicate the capability to 5A, the problem still occurs. The 7805 have a big heatsink and they don't become very hot, so I suppose they don't shutdown. Any idea? P.S.: I forgot to say the most important thing, that this happens with the maximum number of possible leds on ^_^

thank you, I'm using live5, I only wanted to know if it is normal with no modding that live5 doesn't give feedback to the midibox to turn on those leds because the ones in my LC don't turn on.

Is there anybody who is using lc with live? I can't understand if it is the DAW which doesn't send the info to turn on the bank/channel buttons leds or if I made a mistake in the wirings.

first of all, read VERY CAREFULLY the documentation and insist on what you cannot figure out by superficial reading. Remember that different hardware/software combination extend the MB project to unlimited possibilities, see ucapps.de for information. You'll need normally open buttons (often named pushbuttons) wich closes circuit when pressing it. First of all, I recommend to design your controller by bearing in mind which softsynths will be in your main setup (the ones you use more often and you're most pleased by its sound). I left some customizable buttons for synths I use occasionally, pay a lot of attention on the parameters you tweak more on the synth, especially the nature of the synth (type of synthesis). Practice soldering with scrap, and try to get printed circuit boards etched by someone who can do it easily and with reliability (see smashtv or mike's shop veryvery low prices). Hope it helped, post question here if you need help ^_^

I strongly recommend the led bargraph, they help when the PC can't refresh the display when HDD recording or processing huge FX's. Try to rec 8 tracks 96Khz simultaneously ^^

EHEHEH!!! SOLVED! Never mix 74hc595 of different manufacturers ^_^ It's a joy to see these motors moving smoothly!!! Thanks community :D:D

I tested with direct control test application voltages at outA and outB of tc4427's. I have connected only the first motor to the port. When I press button 1 and 2 I have no voltages on the outputs, and I'm beginning to think that this is due to the registers. Diode directions are allright. On Vm/Ground I have 8V. In a post someone solved this swapping the pic but even if the pic is damaged I should have some voltages on the port if I'm not wrong. Stay tuned ^_^

Hi everyone, I'm using MIOS 1.8 and LC 1.6. Building sequence requires that I test the ALPS RSAON motorfaders without touch sensors connected. I'm using smash MF pcb REV2, placed the diodes like in his site avoiding the errors on the silkscreen, I have 8V on c4 but still have no voltages on ports. How can I test the TC4427's? Everything seems ok but I can't let the faders move, even with the direct control app. Is it necessary to connect the touch sensors to make the faders move? What voltages should I have in the outputs of the tc's? Thanks for support ^_^

I can't think of any device which consumes less than a 220 ohm resistor and gives the right load... maybe a 5V lamp? I think it consumes a lot more...

sorry for the numerous posts, hey it was nearly 3 months ago that I last posted! Smash, putting a 220ohm resistor between the 2 rails solved the problem: exactly 5V. I'm supplying the core with no problem now but still I must test it at full power.

I put a load of a 1kohm resistor+a led. The reg's begin the regulation and the voltage drops to 5.1 . Could you confirm it's okay? putting a load which brings the regs to 5V and then connecting the core should not harm the pic right?

Hi smash thanks i was about to make a mess over here! Well, I followed the schematic for a 3A psu so I used 3x7805. I have the 5.4V exactly when I connect the diode between com and ground. I have not connected any load, The heatsink connects COM pin of each regulator but ground is absolutely not connected to com line. The only connection between heatsink (so com line) and ground is anode on common line and cathode on ground line, used the same diode type as specified (1N4007). Everything is like specified in the schematic, except the load. It is possible that if a load is connected it will stabilize. I'll try to connect a lamp to see if this happens ^_^

ahem... Sorry maybe I understood.. I forgot the the resistor ladder between ground and +5.4V ^_^ I can now decrease the voltage like japanese men do! RESISTOR-cap-RESISTOR-cap-------- ^^

Hi smash thanks for the advice. I began building the power supply connecting in parallel 3 7805's like described in the PDF (http://www.reed-electronics.com/ednmag/contents/images/72204di.pdf) page 3 you smartly showed me. I built it but because of the diode drop I obtain 4.7V from the last regulator when COM line is connected to ground. connecting com line to ground with a 1N4007 I can raise the voltage to 5.4V. Is it ok to power the pic with such voltage? The datasheet for the pic18f452 states that the supply range of cmos permits it (I hope i'm not wrong). If not, how could I compensate the voltage drop?

sorry but my aim in this topic was to introduce a different technique to handle larger currents. Since I have to power up 2 MBLC, I do not trust the lm317 which I think will not be able to handle a current of 5A even with the largest heatsink. That's why I asked more skilled people if a proper alternative could be a 3055 npn and a 5V zener diode to handle the 3A I need for 2 cores (no prob for the motorfader modules which requires 1A)

well an lm317 scares me a bit since the max current is 1,5A. with a 3055 npn transistor, I'll be sure I'll have no heat problems. The con is that protection in a 3055 is inexistent and a short circuit will definitely break it out. Let's do a comparison between 3055 and lm317 :)

I need more than 1A of current (2 cores with 4LCDS and over 128 20mA leds) so I must use the transistor. My doubt is: using toroidals, a 2x06 outputs in serial doubles the voltage but the current is the same right? (in my previous post I think I made a mistake by saying that the maximum current will be 2,5A). Thanks for support, I think an 80W toroidal transformer will satisfy my power needs

I've finally drew out my own design for a power supply, using a 6+6 5A toroidal transformer (linear and noiseless!) . In serial, I'll obtain 12V 2,5A. I can work out the 5V ine by means of a Zener diode (5V) a resistor and a 3055 transistor. I'll post my schematic I'd be very happy to know the opinion of more skilled people since I never designed psu's. Toroidal transformers are cheap and I think it should be the time to solve ther lc psu trouble.

Hi, I've tried to power a MBLC with a toshiba adapter switching PSU which delivers 15V5A. I put the 15V through a 2200mF cap then to a 7809 then to a 100mF cap. on the motorfaders I notice jitter, which obviously is not present when I use a linear adapter 9V 500mA. I tried to use the toshiba adapter to regulate 12V and 5V for MF module and Core respectively, but this solution revealed to be a waste of time. Lots of people are complaining because the fortron PSU is no longer available at pollin. I'm about to try an ATX pc psu but I don't trust really about this idea. Could anybody recommend me another psu or a place to find a fortron FSA55P31? It is a pity to see that everything is ok on the LC and not being able to power it properly :(

For anyone trying to take the steps exemplified above: The chance you get jitter is 99%. I worked hard to try to get it work, but it is very hard to achieve low jitter when having 15V and regulate it only with few caps and regulators. Even if it's a pain to wait for a lucky strike for a switching psu which is similar to the fortron recommended by Thorsten, it is worth the price!

http://www.youtube.com/w/Multi-Touch%20Interaction%20Research?v=xvyjdWEHJJk&%20eurl= After viewing this video, I'd like to know the opinions of the members of the community. Do you think hrdware controllers will disappear?

Hello, I've midified an old 61 keys matrix with single contact buttons. This way I have allocated 61 Dins, and I have only 3 more, not sufficient for the navigation buttons. Is there a way to use the dins which are by default assigned to the encoders? Do I need to write an application like ain64_din128_dout128_v1_3.zip or I can get through this with some little din mappings? It is not clear to me: MB64 and MB64E cannot handle more than 64 dins because of compatibility issues with pic16f, so why in the changelog of mb64E it is written that the app can handle up to 64encs and 64buttons? Thanks for the help

Floating sequences sound like Van der Boss's Unreal soundtrack ;) Nice

It depends by the manufacturer, in most cases with proper heatsinking I was able to drag out from 1A to 1,5A. Most datasheets say 1A