TK.

Hi Frank, today (ooops - yesterday) I built a nice 32 LED/Button module which allows me to play with the LC emulation more ergonomically: I finally noticed the same strange behaviour and found a way to fix it. With the new release, it is possible to map the LED shift registers to different functions, so that you can decide if the LEDs should only be controlled by the button handler, or only from the host application via MIDI. Remark: all buttons should be in On/Off mode, Logic/Cubase handle the toggle function by itself, and sometimes the LEDs flash on special events. I.e., the mute LEDs are flashing in solo mode) LCD display: I will try it next week. It makes sense to support both solution: a cheap & dirty 40x2 LCD driver, and a graphic display solution (which also isn't perfect but still cheaper when a dedicated 55x2 LCD) Best Regards, Thorsten. Best Regards, Thorsten.

It's really a F-A-Q ;-) Best Regards, Thorsten.

It's really a F-A-Q ;-) Best Regards, Thorsten.

Let's check it step by step: are you using a LCD with backlight? In this case you should disable the backlight first, this will lower the current consumption by 100-200 mA. Thereafter you should disconnect the pots - if the PIC boots again, you possibly didn't solder the pots correctly, so that they are causing a short circuit. See also http://www.midibox.org/midibox64_walkthrough/potsbuttons.html Best Regards, Thorsten.

Let's check it step by step: are you using a LCD with backlight? In this case you should disable the backlight first, this will lower the current consumption by 100-200 mA. Thereafter you should disconnect the pots - if the PIC boots again, you possibly didn't solder the pots correctly, so that they are causing a short circuit. See also http://www.midibox.org/midibox64_walkthrough/potsbuttons.html Best Regards, Thorsten.

Hi Juanjo, in the old design the input shift registers (74HC165) have the same pin enumeration, so just compare the DIN module description with the PCB circuit or find out the correct buttons with try & error - it's easy :) Best Regards, Thorsten.

Hi Moritz, do you really need 4A? Or is this just the assumed surge current? Maybe it's better to take a LM138, an adjustable regulator which allows you to adjust the voltage with a pot Best Regards, Thorsten.

Hi Moritz, do you really need 4A? Or is this just the assumed surge current? Maybe it's better to take a LM138, an adjustable regulator which allows you to adjust the voltage with a pot Best Regards, Thorsten.

This value is derived from the MIDI baudrate 31250b/s 32µs for one bit, 320µs for start/stop-bit and 8-bit value, 960µs for a common MIDI event without taking the running status into account (which can save one byte in special cases) Best Regards, Thorsten.

This value is derived from the MIDI baudrate 31250b/s 32µs for one bit, 320µs for start/stop-bit and 8-bit value, 960µs for a common MIDI event without taking the running status into account (which can save one byte in special cases) Best Regards, Thorsten.

Hi Justin, which firmware are you using? The "bb" version (BankButton) version requires the same buttons like the menu navigation. If these buttons are working fine, the others should do it also. It's important that the contacts of the button are not closed when they are depressed. Do you own a measuring instrument or something else in order to check the contacts? With three pins you have just only 3 possibilities ;-) Best Regards, Thorsten.

Hi Justin, which firmware are you using? The "bb" version (BankButton) version requires the same buttons like the menu navigation. If these buttons are working fine, the others should do it also. It's important that the contacts of the button are not closed when they are depressed. Do you own a measuring instrument or something else in order to check the contacts? With three pins you have just only 3 possibilities ;-) Best Regards, Thorsten.

The current consumption of the pots is very low (5V2/10kOhm = 2.5mW), so the smaller pot is ok. Concerning the Log/Lin or A/B issue: see the FAQ http://www.ucapps.de/qa.html#21 (Should I buy linear or logarithmic pots/faders?) Best Regards, Thorsten.

The current consumption of the pots is very low (5V2/10kOhm = 2.5mW), so the smaller pot is ok. Concerning the Log/Lin or A/B issue: see the FAQ http://www.ucapps.de/qa.html#21 (Should I buy linear or logarithmic pots/faders?) Best Regards, Thorsten.

I don't know a manufacturer for keyboard switches who sells single pieces to private people. So, best solution is to search for a cheap keyboard @ Ebay and to enhance it by some additional MIDI stuff. Best Regards, Thorsten.

I don't know a manufacturer for keyboard switches who sells single pieces to private people. So, best solution is to search for a cheap keyboard @ Ebay and to enhance it by some additional MIDI stuff. Best Regards, Thorsten.

If you are able to program the display handlers for such a controller: sure - but you possibly need 2 or 3 core for the best performance. Best Regards, Thorsten.

If you are able to program the display handlers for such a controller: sure - but you possibly need 2 or 3 core for the best performance. Best Regards, Thorsten.

Two displays can be attached to the LCD bus of core module without problems, just only the E (enable) signal has to be inverted in order to allow a proper addressing --- but IMHO the result would look stupid. :-/ However, I searched on the web but haven't found a suitable display. So I thought about alternative solutions - how about a graphical LCD? A 320x80 LCD like known from some synthesizers would be the best, because it would allow to display 5x7 pixel characters. But it seems that such displays are vanished from the stocks of the main distributors. A 240x64 could also do the job - up to 48 characters can be displayed on one line, that means, 7 characters less than the LC (the spaces between the tracknames could be left out...). The big advantage: the LED-rings could be replaced by nice pixel-maps on the screen, the MTC and some more values could be displayed due to the available space - this means less effort for constructing the enclosure Best Regards, Thorsten.

Das LCD macht natuerlich auch ohne Navigationsbuttons Sinn, so siehst Du zumindest, an welchen Werten Du gerade drehst. :) Zu dem Setup-Problem: ich vermute mal, dass Du da etwas durcheinander gebracht hast. Die alte Firmware ist mit dem neuen mk_syx Skript inkompatibel, da ich die Datenstruktur geraendert habe. Um Dir weiteren Stress zu ersparen, habe ich die Konfigurationsdatei einfach mal schnell selbst angepasst, Du findest sie unter: http://www.ucapps.de/tmp/mb16e_ini.zip Diese Setup-Datei funktioniert nur mit der neuen Firmware: http://www.ucapps.de/midibox16e/midibox16e_v1004pre1.hex.zip Serge moechte den vmidibox16e-Editor dieses Wochenende ueberarbeiten; alles wird gut! :) Gruss, Thorsten.

Das LCD macht natuerlich auch ohne Navigationsbuttons Sinn, so siehst Du zumindest, an welchen Werten Du gerade drehst. :) Zu dem Setup-Problem: ich vermute mal, dass Du da etwas durcheinander gebracht hast. Die alte Firmware ist mit dem neuen mk_syx Skript inkompatibel, da ich die Datenstruktur geraendert habe. Um Dir weiteren Stress zu ersparen, habe ich die Konfigurationsdatei einfach mal schnell selbst angepasst, Du findest sie unter: http://www.ucapps.de/tmp/mb16e_ini.zip Diese Setup-Datei funktioniert nur mit der neuen Firmware: http://www.ucapps.de/midibox16e/midibox16e_v1004pre1.hex.zip Serge moechte den vmidibox16e-Editor dieses Wochenende ueberarbeiten; alles wird gut! :) Gruss, Thorsten.

There is a new release available now which allows to setup the device ID and MIDI channel with the device driver configuration panel: http://www.midibox.org/midibox_sid/jsynth_017_with_mbsid_rel2.zip Best Regards, Thorsten.

It was my invention - don't know if any other controller is working with the same optimization, but if such a controller has been created after May 2001, the designer was possibly inspirated by MIDIbox Plus V1.802 ;-) Best Regards, Thorsten.

It was my invention - don't know if any other controller is working with the same optimization, but if such a controller has been created after May 2001, the designer was possibly inspirated by MIDIbox Plus V1.802 ;-) Best Regards, Thorsten.

Auch die LED-Pattern kann man im midibox16e.ini File anpassen (siehe http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=german;action=display;num=1039009816 ) [LED_PATTERNS] 0.00 = 0000000000000001 0.01 = 0000000000000001 0.02 = 0000000000000011 0.03 = 0000000000000011 0.04 = 0000000000000011 0.05 = 0000000000000111 0.06 = 0000000000000111 0.07 = 0000000000000111 0.08 = 0000000000001111 0.09 = 0000000000001111 0.0A = 0000000000001111 0.0B = 0000000000011111 0.0C = 0000000000011111 0.0D = 0000000000011111 0.0E = 0000000000111111 0.0F = 0000000000111111 0.10 = 0000000000111111 0.11 = 0000000000111111 0.12 = 0000000001111111 0.13 = 0000000001111111 0.14 = 0000000001111111 0.15 = 0000000011111111 0.16 = 0000000011111111 0.17 = 0000000011111111 0.18 = 0000000111111111 0.19 = 0000000111111111 0.1A = 0000000111111111 0.1B = 0000001111111111 0.1C = 0000001111111111 0.1D = 0000001111111111 0.1E = 0000011111111111 0.1F = 0000011111111111 umaendern in: [LED_PATTERNS] 0.00 = 0000000000000001 0.01 = 0000000000000001 0.02 = 0000000000000011 0.03 = 0000000000000011 0.04 = 0000000000000111 0.05 = 0000000000000111 0.06 = 0000000000001111 0.07 = 0000000000001111 0.08 = 0000000000011111 0.09 = 0000000000011111 0.0A = 0000000000111111 0.0B = 0000000000111111 0.0C = 0000000001111111 0.0D = 0000000001111111 0.0E = 0000000011111111 0.0F = 0000000011111111 0.10 = 0000000111111111 0.11 = 0000000111111111 0.12 = 0000001111111111 0.13 = 0000001111111111 0.14 = 0000011111111111 0.15 = 0000011111111111 0.16 = 0000111111111111 0.17 = 0000111111111111 0.18 = 0001111111111111 0.19 = 0001111111111111 0.1A = 0011111111111111 0.1B = 0011111111111111 0.1C = 0111111111111111 0.1D = 0111111111111111 0.1E = 1111111111111111 0.1F = 1111111111111111 Insgesamt kannst Du vier verschiedene Patterns definieren und den Encodern zuweisen... viel Spass beim "Malen nach/mit Zahlen" ;-) Gruss, Thorsten.