ssp

stryd, i have got a copy of both applications now, i will try them tonight and see what works best, i can do the boards in solidworks but its really over the top for that. the boards arent going to be that big really as i would probably use smaller leds than the large ones i have got now. thanks for the advice, its appreciated as always. if i could do it as a dual layer top and bottom board that would be great, a single side even better its just down to the routing. do either applications do an automatic pathway creation for you or is it all manually drawn circuit paths? im going to spend an hour or so looking over the manuals for each one first and see which one will do things the best for me.

ok having good look at the info sheets this evening, am i right in assuming i can make an 808 using these modules stated here http://www.ucapps.de/midibox_808.html if i cannot get an 808pcb kit form the guys who make them, if so then i can order this lot off smash tv with my next order all at the same time that will save me time and maoney on different deliveries. 1 x MBHP_CORE, stuffed with PIC18F4620 2 x MBHP_DINX4 (only 6 74HC165 shift registers used) 2 x MBHP_DOUTX4 (7 74HC595 shift registers used) 1 rotary encoder (for tempo, could also be used for additonal purposes in future) 33 buttons 35 LEDs (33 could be integrated into buttons, 2 additional LEDs to display selected layer and record mode) and the optional hardware as stated in the info page Thorsten, if you get to read this thread can you please give me some more info on how this drum machine would work using the modules rather than the pbc board built for the kit please. i would really love to build a 909 could this be done using the modules or is it going to be a totally different beast? to be honest i would be happy with just the kick, clap, hi hats. im hoping to place my order with smash at some point next week, so any advice i can get before then will be appreciated. thank you. update: i also found this site which also has the hex files for the rom sounds on it also so i have more info now also.

i have been reading some of the posts from days gone by on here and i read up on the diy 808 drum machine made a while ago. as im now getting back into my electronics and really enjoying it very much i am doing a things to make list. basically as i progress in dexterity and skills again i plan to progress in skill levels of kit building, the main reason is that as im building im re-learning all the things i struggle to remember now. i found on the net a drum machine made by trevor oakley however i tried emailing him but it bounced back to me. so what do i want to build?? well an 808 and a 909 drum machine basically, now i could just go and buy a drumstation or buy an original 808 or 909 however theres nothing to be gained from that for me, and i certainly wont enjoy the fact i didnt make them. so are there any pcb schematics for an 808 and a 909 available anywhere with full parts lists?, i have to do a big order from smash shortly for the next kits i plan on making and while i do that order i can get the next lists done for the drum machines. i really have to say an immense thank you to nILS, one of the most patient and understanding people i have ever spoken to online, and when i cant see things clearly he helps me to find the thing that makes it clear for me without helping me too much. being a stroke sufferer makes doing certain things really hard, yet sitting down and focusing on these kits is doing me the world of good and i am really really enjoying things for the first time in a while also. it was an amazing feeling when i got the midimon working for the first time (even though i had the wrong psu plugged in and nils pointed it out to me) seeing the midi events on the lcd made it all worthwhile. so im hoping you can understand why i want to build more things as time goes by! once again thanks guys for this site and the kits, any suggestions for the drum machines is great. heres my build list: lc/mackie control surface with 16 faders mb sid <---- seriously looking forward to this one, im hoping that i may be able to do one like wilbas kits. mb sequencer and then the midibox fm synth. after those then some drum machines.

do you think its possible for me to make a secondary board using say eagle or another board layout program and have a board made for the led routing? i know it would have to be a dual layer board by the looks of it, but do you think its a possible board? if it is i can then try it in eagle and get one made also get a better baord made for the leds as well. thanks

sorry to hear this thorsten. its a real shame that some idiot has to get his kicks this way, and try and disrupt or ruin a site that serves only to educate people in electronics. since i have been here i have succesfully built my first kit and now im doing the casework, all through the information and help from yourself and members of this site. unfortunately there isnt much you can do about the people who have done this but you now can safeguard yourself against it happening again. thanks for getting the site back up as quickly as you did!

well i think i have got it sorted now as to what i want to do with linking the ribbons from the mtc to the core via the 8 way cnx on the front of the board. can someone just double check this for me and make sure its right? i have a small reference pic and then the link for the large version thats easier to read. thanks. so you take pin 1 on the idc connector to the dot on the led display and then follow with relative letters afterwards. a=2 b=3 c=4 d=5 etc, then at the end there is another idc connector as you can see the three connectors on the edge of the coard in the pictures above, those connectors will then link to the ones on smash's dout board idc connectors via ribbon cables with 2x5 idc headers, reason of the 2x5 is i cant get 2x4 anywhere for some reason, so the last two holes are not connected to anything. reference picture larger version of picture. http://i402.photobucket.com/albums/pp110/stored/LAYOUT1.jpg

todays update: this morning my new matrix boards arrived from china, so i was able to get on with the mtc led display. i knew there was going to be a load of wiring to do so i just got stuck in to it. i got as far as i could today while i decide how im going to link them down to the 8 way 90 degree pins, im thinking using some stripboard with a set of pins on and then linking them down to the right angle dout connectors on the edge, however im not sure yet!!. anyway here you go todays work! there you go, if anyones interested the three little lights are triple led lights i have had for a while, they have clips on them so you can attatch them to whatever your working on, very handy!

nils i had a thought last night about this. could i put a basic gm5 usb midi interface in the case and take the midi in out from that to the core in/out so that instead of having a pair of midi cables and a usb cable and the psu cable in the back of the unit i just have the psu and then the usb cable? and then run them from the 9-10v psu? it would tidy things up for me so much and then only two holes required for the rear of the case work.

well my new matrix boards still hadnt arrived today so i got on with stripping the shuttle down, taking the alps dual rotary encoder off the board, fitting it to a new matrix board and doing the 8 pin connector. all was going well until two pins broke on the encoder but i was able to solder some wire onto them, im going to have to find a replacement or two now i think, im pretty sure someone on here has some for sale. anyway its all soldered up and the connector is on, i just have to trim down the board as i need now, will do that tomorrow with the dremel. heres a few pics to add to the progress, im going to change the dials for something else i think, i will see if i can get them done tomorrow.

last night i succumbed and soldered the small 10k pots onto the baord for now until my alps arrive and i then wired the lcd up. only to find nothing would display. after spending ages talking with nils and it was his first suggestion it came down to the psu i was using not being powerful enough. so with nils advice i loaded up mios studio, and then loaded up the midimon hex file and dumped it to the core unit, attatched the lcd (after fitting new psu) and bingo the display fired into life and worked!! now all i have to do are the two switches and the little resistor arry that goes with them and i just have to wait for my two large matrix boards to turn up for the mtc display to be built, then its finished apart from being cased up. heres the pics, enjoy! now the voltage regulator got a little hot so luckily i had a plasma display that i had stripped down out back, so i took one of the heatsinks off one of the regulators on that and with some thermal paste bolted it to the regulator, i do have some smaller ones which i will use today but for purpose that one was ok. i also have the stripped down behringer units ready also for the case work, all i have to do is take off the behringer micro switches and replace them with the new switches i have bought. and then test fit them to the front panel prototype i am having made out of some 2mm aluminium.

dender, if i were to send him my front panel and case work schematics would he be able to cut and then do the markings for me? i have everything laid out ready with full measurements etc. the company i was checking with over here in the uk is seriously extortionate

did the voltage checks tonight one the pic socket and ic2 sockets as stated in the info off ucapps and all test points came back with the required 5v accross them , so im pleased i got that bit right!!! ----------------------------------| update ok well as promised here are two pictures of the faceplate assembly i have designed in solidworks for the complete unit, this will have a stripped down bcf and bcr 2000 embedded inside also along with the midi mon and shuttle controller. the plate is made out of 2mm sheet all holes ready for self clinch studs, i dont want to see any screws or bolts etc on the surface of the unit then its going to be powdercoated in a very fine metallic charcoal colour the same as used on the mackie units. after i have done this one i intend to build another unit that takes a core, two mf units, the mtc display two lcds and the illuminated buttons im using in this along with another shuttle unit. this is basically a test to see if i have got everything right in solidworks as i have made a load of pre defined templates to what i want. enjoy the pics! more to follow!!

stryd_one, the reason for the mounted pots is because the lcd screen is going to be in a hinged case work so i can alter its angle up and down, bit like the screens on the akai mpc units. i have everything i need bar the pots and a few buttons, i have to go and buy a new psu as i think i threw it out the other day, my heads telling me that i did and that i thought it was a broken one i had, which it probably is what happened as the broken one is still on the shelf.

thanks again nils, yes i see what you mean now, sorry i thought it was an addon part that i would have to build. once again im a little deflated and down about this because before everything i would have seen and understood everything, and now its like im looking through a real dirty pane of glass, i can see things i just cant work them out. its a little depressing to be honest not being able to figure things out as easliy as before but im not giving in. thanks once again for pointing out the obvious to me. ----------------------------------------------------| ok update, i have finished the core, however i havent soldered the two 10k potentiometres on the board simply because they are too small and will be out of the way for me to adjust as and when i may need to, so i have decided to replace these with a pair of alps single track, linear 9mm 10 verticle pots. you can find them here http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=2632980 anyway i followed the info i had and the very good details on smashs website and the 3d pics helped me also, soldering was a little bit of a pain again today, found it more than difficult with the hands doing the jitterbug on times!! however the core is done and heres the pics as i went along, once again many thanks for the info on smash's site and the fact i managed to find my resistor calculator and use it . this one was a good soldering project! all i need to do now is power it up and test the voltages before i fit the pic. im just starting the lcd screen now and will update later. until then enjoy the pics of tonights work. first resistors in solder quality all the parts on minus the pots finished solder quality, a few flux spots to take off but they are nothing to worry about at all.

i was looking over the core schematic for the midimon im making and its sinking into my head but really slowly but im going to get there. and i noticed that it has details for pots there, i checked with nils and he confirms theres two 10k potentiometers there. now, im not doing well understanding the circuit there, can anyone give me a heads up on it? i have matrix board here so i can make one im just not sure whats what on this part of the pdf. im hopeing thorsten will add something o this for me, it would have been nice to see a little bit of this circuit made up actually so i had some pictures to refer to. sorry if i am a pain guys, i am reading the circuits as you can see and im understanding what i can as i re-learn things again, but i dont want to mess this up so im asking for advice when i need it. thanks as always. heres the pic from the pdf. oh and where do i feed the 7-10v power into the core?? thanks ssp

well i spent this evening soldering the doutx board, this is the first time i have soldered in a long time and even more harder after the mini strokes. it took a while and had to keep stopping when my hands started shaking about. but with a little perseverence and concentration i managed to get the board one, and with a little cross checking with nils to make sure i did the bridging right its done. tomorrow i will do the core and the lcd screen so more to follow!!! thanks for everything guys it really is appreciated!!!

well the kits from smash turned up today!!! :D :D :D :D so then this means i can get on with them tonight, i am waiting for some matrix boards to arrive from china, then i can get on with the leds als. lots of things to get sorted out, and the momentary switches i have got are great, with the frosted tops and the blue integral leds lighting them up!!! pictures to follow later.

what i mean is if i need a dedicated board for these dfisplays say another cor with doutx or just a second doutx, thats what i mean

sorry nils did you, sorry mate.... bad head day here not a good one at all dont even remember yesterday let alone any other day, and im still a little dopey from my meds.

when they say app they mean the use you intnd for the core if your going to do the lc yu will then need some lcd's and mf boards also amoungst other items, if you do a midimon (which i am building as a first project) you need a core, doutx, lcd disply and for mtc several 7 segment leds. the core is used for any of the projects here so decide what you want to start with, personally i think the midimon is a good starting point. most of all and i have to stress this, you really need to read up on the info here and ucapps, its all there and you will also find most questions have been asked and answered many times over. if you need help on something its there but you have to play a part in the process and make an effort to read up prior to asking a more informed question. the guys here are great as i have found, but after hearing the same questions for the millionth time they tend to be a little stand offish, thats why i just got on with it and have been reading up as much as i can, that way any thing i ask them is more technical in natue and shows i have been reading up. mind you if my brain worked as good as it used to it wouldnt be a problem for me!!

im hoping that maybe thorsten may be able to shed some light on this, as it is really something i would like to implement.

hi nils, reason being that the cc data for the volume goes from 0-127 standard, so thats all i need it to display, i wont need any markings along the metal work to show levels etc , i just thought a nice touch would be the 3 digit display above each fader to show me its current level as per cc. plus its something else to build ;) i should (hopefully) be having my stuff shipped from smash shortly by the looks of things so i can get on with the midimon/mtc project in the meantime and then get my core and mf kits from him next and go on building this one until it all arrives then get on with that, by then i would hopfully have all the info i need to arm myself so to speak with building the control surface i want to. i need things to keep me occupied nils, it gets a little too boring here everyday not doing much. besides you gotta humour an old guy, its not often this head of mine works like this!!

is it possible to have above each of the 8 faders in the layout im making to have 3 small form 7 segment led displays that show the position of the fader from 0 to 127 say? as the volume change is basically going to be a data comand of 0-127 then the fader as it moves up can increase the numbers value and lower as pulled back. just wondering if there is provision for that with the core? thanks

sorry been a little busy and im still waiting for the bits from smash to arrive so i havent got much to add however my console furniture is finshed so at least i have something done. after this its just waiting for my switches and parts and kits to arrive then waiting for my case and side panels to be cut..

well its been a usy two days, not helped by the fact i didnt have a pin layout diagram for the leds. however a quick look on the net before i bugged stryd-one or nils for help i found a nice little site that gave me the default led layouts etc and i managed to get it all sorted and labeld up. for future reference regarding segmented leds go here: http://www.play-hookey.com/digital/experiments/seven_seg_led.html so today i was going to solder the leds to the board only to find last night that it wasnt a pad board it was strip board, and im not cutting sections in the tracks for what i want anytime soon, so i had to order a new board today, so tomorrow im hoping that i can continue. i have also ordered some very nice illuminated momentary switched to replace the small buttons off the shuttle, i got them here. http://www.rjselectronics.com/pages/view-products.php?parentID=21 they also have a massive range of other illuminated switches should you need them. i needed 15 new switches all together for the shuttles buttons and several more for other things as well. i also began the task of stripping down the 15.4" lcd screen i have got so that can be inserted into the unit also, along with the parts from a behringer bcr2000 unit i bought cheap. im still working on layout and cutting design for the laser cutters for the case work at the moment, but when i have everything ready i can get the case work and wooden end cheeks cut and start building. here is a prieview of the look i am going for with the 15.4 screen embedded also for meterbridge and mixer visualisation from my daw software.