cimo

... damned defective leds (square 2mm blue leds from conrad, 3 defective over 50) i hope it will be of help for somebody in the future, a defective led can shortcut (even partially) simone

.. debugging time .. so far led ring #1 will work ok but the other 3 shows problems: leds not so bright or getting darker o brighter as there are more or less leds on. If i use the dout_enc example i can see that all leds on position number 2,7,8,9,11 (on the four led rings) are not working while the rest works ok. I searched for bad solder joints, vias etc but i can t figure out what s wrong. I tried to apply some current to the not-working leds and they didn t light up unless i desoldered them from the pcb, that sounds like a shortcut! is it possible that the SRs are shortcutting the cathodes? My question is, being the first time i work with led rings: what is the best way to debug led rings trouble? any idea? thanks simone

hurra for the crazy people!!! it worked this way: i deleted all the references to cathodes 2 (2_1) in mb64e_ledrings.inc and main.asm if you need it write me and i can be more specific about what i deleted simone

... crazy people talk to themselves !!! anyway i tried to write the code as follow #define LEDRINGS_SR_ENC1_16_CATHODES_1 1 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_CATHODES_2 1 ; second shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_1 2 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_2 3 ; second shift register with anodes of the first 16 LED rings in this case all the leds will light up while with code like this #define LEDRINGS_SR_ENC1_16_CATHODES_1 1 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_CATHODES_2 0 ; second shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_1 2 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_2 3 ; second shift register with anodes of the first 16 LED rings no led will light up i have to admit i am completely lost and dunno if i have to modify the mb64e_ledrings.inc and that scares me cause i can t understand a line in it!! still hoping and waiting for some help.. thanks in advance simone

hi apart from having the box partially running i still have problems with certain pc/soundcard combinations: XP with an extigy pci works ok almost all the times then i have another XP, a Powerbook G4, a Tascam 122 and an Emagic 2/6 and a AudioTrack usb/MIDI interface : none of the combinations possible with this equipment will work, is it possible that the optocoupler is defective and it will only work with a slightly stronger signal (no usb equipment?), that s the only idea i had, because i have no problems on the MB working the signal out but i can t upload any software thanks simone

hi sebastian i am listening to your music on myspace, nice indeed and what a surprise to find Mr Forss among your friends, he s one of my favs of the last years keep it on !! simone

hi lylehaze when you will release the infos i could take over the whole (or part of it) eq stuff, i became quite familiar with eagle and i will have free time to toy around with it during the summer. simone

hola bias yo vivo en tenerife desde octubre hasta abril o sea salgo dentro de poco y volvere en octubre, de toda forma pongamonos en contacto para pedidos, sugerencia o para una garrimbita en la playa. te enviare mi mail en PM yo vivo en santa cruz

hola es posible si montas dos COREs en cadena de toda forma te aconsejo de considerar que 100 pots son muchas y que podrias utilizar los banks para montar menos pots y asignarles valores diferentes a segunda del bank (asi funciona una MB64) suerte! \simone

hallo i am very interested on this project, i use an external audio mixer while i spin with a pal (turntables vs. laptop figthing, that s the way we call it) and i d love to change the mixer for a digital mixer to control directly from my MB.Now does anybody of you thought about eq kill switch or eq pots? would that be possible to implement some filters and digital switches to be controlled via MIDI? simone

hallo i ve found this only solution: SR 1 2 and 3 are connected to the ledrings, while SR 4 to the buttons if i cut the traces on the pcb and solder 2 cables/bridges i can change it like this: SR 1 3 and 4 to the ledrings and SR 2 to the buttons.In this way the ledrings will be connected as in the original MB64e except for the SR 2 which should be connected to ledrings 9-16. Since i am going to do a "dirty" job on the pcb i d like to receive some comment or advice before going on, thanks hasn t anybody used less than 9 ledrings on a MB64e project with only 3 SRs ? simone

hola solo por curiosidad, no hay algun MidiBoxer chicharrero o lo mejor de las Canarias? simone

hi kompis i can t really understand, what you want it ia a sampler right? then this is not the proper place and i doubt you can diy a custom sampler to compete with commercial ones.Anyway .. who knows? hej da simone

hi guys try avmixer http://www.neuromixer.com/product-avmixer.php simone

hey there i have a fifth question: the "how to connect 16 LED rings to a DOUT4" example shows how to connect 16 X 11 cathodes to the first 2 shift registers and 11 X 16 anodes to the 3rd and 4th shift registers. now i have 4 LED rings and i ve connected 4 X 11 cathodes to the 1st SR and 11 x 4 anodes to SR number 2 and number 3 so i used only 3 shift register and here is my main.asm code about the LED rings #define LEDRINGS_SR_ENC1_16_CATHODES_1 1 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_CATHODES_2 0 ; second shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_1 2 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC1_16_ANODES_2 3 ; second shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC17_32_CATHODES_1 0 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC17_32_CATHODES_2 0 ; second shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC17_32_ANODES_1 0 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC17_32_ANODES_2 0 ; second shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC33_48_CATHODES_1 0 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC33_48_CATHODES_2 0 ; second shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC33_48_ANODES_1 0 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC33_48_ANODES_2 0 ; second shift register with anodes of the first 16 LED rings ; #define LEDRINGS_SR_ENC49_64_CATHODES_1 0 ; first shift register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC49_64_CATHODES_2 0 ; second register with cathodes of the first 16 LED rings #define LEDRINGS_SR_ENC49_64_ANODES_1 0 ; first shift register with anodes of the first 16 LED rings #define LEDRINGS_SR_ENC49_64_ANODES_2 0 ; second shift register with anodes of the first 16 LED rings will that work? i prototyped a custom dout double layer PCB with LED rings on it and i can t be sure if fails (cause it doesn t work for the moment) because of software or hardware problems. thanks simone

txxx tk one missing bridge :-[ :-[ :-[ :-[ :-[ :-[ and i also needed to remove the bypass caps, maybe one was defective tx again

hi if that s a "foot switch" input and not an "expression pedal" input, then just forget about the matter simone

hi i have 4 questions about ledrings, i also have my own opinion but i need to be sure about this: -i can choose if the a group of DOUT will be triggered either by the corresponding DIN or by an external MIDI input but what about the ledrings? what s the difference? -if i have 4 ledrings on my MB but i ve soldered only one of them.. will it work without the rest of them soldered to the pcb? -how will i (and is there any need to) instruct the software about how many leds i use per ledring? -will a working ledring improve my karma? thanks in advance simone

hi all i am experiencing a strange behaviour: first i had some problems uploading mios on a pic452, i used another computer and it worked then i had some problems uploading the software, it gave some MIDI IN OVERRUN ERROR but then it could eventually upload all the application anyway the result from the application are not as supposed, i don t get any event from the din but only from pin8 which will send 16 messages C3 ON on every channel! it also gives F0 00 00 7E 40 00 01 F7 (only once) at startup: this means that the app has not been uploaded right? F0 00 00 7E 40 00 00 F7 should be read when an application is running over MIOS right? can anyone confirm? along with the strange behaviour it will also show some midi messages when shutting down the box, sometime it will send them sometime not.. any idea?? thanks simone

hi necrofix i had the insane idea to mount a MidiBox directly into a guitar s body having some knobs and buttons on the lower side of the picksguard .... simone

1 take one of those plates you can find in ovens or any metal plate 2 place a clothes iron (on) on top of it ant let it warm up 3 take a tupperware box (plastic) with top (lid?) and tape to it your dremel and use any T shaped piece of metal (i used a small screw with T hook 4 prepare your etching chemicals and pour them into the box with the PCB, tape the box to the metal board and start the dremel at minimum rpm it took 6 minutes to etch an 11 X 11 cm double sided pcb

hi all a new idea for easy and fast etching http://www.youtube.com/watch?v=IAA18457ZhU

ciao luca puoi prendere in considerazione di costruire una midibox customizzata (azz!) dimmi quanti pulsanti e quanti pot vuoi utilizzare e ti posso aiutare nel progetto dell hardware.Dovrai poi adattare il software al tuo hardware, preparati ad imparare un po di Assembler. ciao

Volevo solo precisare che il nome ufficiale non e scatolotto pero MidiScatolotto ;) simone

hola i am using tilt sensors (2 kinds: 1 with a ball inside and another with quicksilver) but i have some problems cause it wont trigger neatly but send sometime 1 trigger sometime none sometime 2 or 3 events, any idea how to stabilize it or how to build a diy tilt sensor? i am using it to capture a circular movement and i want it to trigger at every loop. Maybe a software solution would be better? something to do with debouncing coding?? txxx simone