goule

Audiocommander : I went to your web page, saw the "sensorisches Musikinstrument" section ;D WAOW :D :o You write you have pressure sensor, etc. I can't wait more, tell me about what sensors you embeded into your machine ! :P ;D Your web site is very fine by the way ;) See you, Goule

Very nice indeed ! ;D Keep up the good work ;)

Wow :D thanks man ! I went to their web site and filled an information product request, I checked the "sample for eval" box ... let's see if they send me one. If not I would be very interrested by your offer ! By the way, did you succeed in using the pad for the midibox ?

Yes very simple indeed. Just find the 3 pins for each axis (which is very simple if you're not drunk ;D) and connect them to AIN just like any pot / fader / joystick. If I remember well, the middle pin is the Vout, and of course the two other are 5v / ground. ;)

Hi all, I already have that dual joystick thing integrated into my midibox. Just wanted to say it works perfectly well ;) Goule

Getting back to the subject of XY pad : did anyone suceed in finding those FFC connectors ? Or did anyone find any other method that works without that connector ? Thanx all

Is there a way to know wich version of the bootloader is installed ?

Audiocommander : I'm so glad hearing from you again !! I can't wait to know what kind of controlers you embedded into your joy-machine :D ;D 8) Let me know more about all that ;) In the meanwhile I'll try to connect some of the SpectraSymbol stuff (but it seems quite hard). Another track I want to follow is to have a female jack available to connect an expression pedal ;) Seems like this project never ends, but it's so much fun 8) Sinnsyk : I don't have any movie yet but I'm planning to make some with my webcam as soon as I've the time (and energy). I have to say that every free minute is more dedicated to soldering / coding than making movies but you're right, this could be a great thing. I'll post the links on that thread as soon as I've done it. Cheers everybody !

Super, Eh bien écoute, je serait partant pour une vingtaine de caps bleues (je te fournis les leds bleues) + une dixaine de caps bleus avec tes leds vertes (que je trouve très beaux également 8)). J'imagine que les leds doivent être d'une taille particulière (standard ?) Je te propose de passer en MP pour l'addresse et l'ordre du chèque ;D A très vite

Merci pour la réponse rapide ;) Si un chèque part pour bordeaux rien n'empeche d'ajouter une dixaine dans l'enveloppe ;D aucun souci (et oui c'est vrai les bleues sont + chères :-\ mais tellement class sur une interface noire :P) Par hasard vendrais tu aussi les contacteurs pour m'éviter une commande parallèle ? En tout cas donne moi ton prix pour une dixaine de leds ... (avec le port). Question toute bête : quelle est la taille ? Y en a t-il des plus ou moins gros ? Merciiii !

Salut Moxi, Tes réalisations semblent magnifiques !!! Très beau boulot ... :o Je serais très intéressé pour te prendre des boutons avec led, éclairage bleu si c'est possible. Question : Quelle référence de capteur utiliser sous le bouton ? Encore autre chose : j'ai vu sur ce lien une photo avec une grosse molette type "program change" super bien réalisée :P: quel est le prix ? Serait-ce possible d'en avoir une en bleu ? (oui j'ai un problème avec le bleu ;D) http://www.midibox.org/forum/index.php?topic=4997.msg47707#new Et enfin, comment se passe la vente, par hasard serais-tu en région parisienne ? En tout cas encore une fois très beau boulot, j'espère pouvoir utiliser tes boutons ils sont magnifiques (je les imagine en bleu ;D 8)) Olivier

That's right. I'd like to have one 12 and one 120 for each hand (mounted very close to one another) and a switch ("short range"/"long range"). I already have a switch that activates or not the linearization of the GP2D120. It works very well and it's useful, depending on wich type of parameter you want to control. In general, linear behavior is best, but for a filter cutoff for instance, I noticed that the native mode of GP (log) is better. I also let the possibility to invert the values (0-127 / 127-0). I also have 2 analog joysticks with 8 bargraphs (2 for each axis on each joystick) and if the user puts his hand on the left GP sensor, the bargraphs of the left joystick (supposed to be unused) displays the value of the GP. When the user gets his hand off the sensor, the bargraph displays the value of the joystick again 8) Now I'd love to use the XY pad & other softpots from SpectraSymbol, but I still need a FFC connector ... I didn't amplify the signal from the GP to adjust the range (0 - 5v) and the offset, so I did it by software (mainly because I have so few skills in electronics / wich component to by, etc.) but this should even improve the resolution. If anyone did this, I'd like to have a scheme !! Seeya, Goule

stryd : it costed 25 euros per sensor. Now I have 2xGP2D120 + 2xGP2D12. At this time, only one GP2D120 is connected, I can't wait to test with everybody plugged in :P In fact I tried many values for the capacitor (from 1 uF to 3000 uF :o) and it started to get acceptable at 470 uF. However I decided to use the next bigger value (680 uF), just to be sure ;D. Bill : it's a 16v capacitor To get the sensor to the full range, you can do that by software reading 10 bits value with a little bit of calculating. I even got my sensors linear this way (no additionnal hardware + soldering needed). Cheers all, Olivier

Okay : I've finally solved the flickering problem with the GPD's sensors : a bypass capacitor of 680uF was needed between Vss and Vdd (soldered as close to the sensor as possible) to have them work correctly. So now I don't need my software filter anymore (but perhaps it can help under some very particular conditions, for instance with **very** exotic sensors), but I'll say that a hardware solution should always be possible (and prefered of course). Hope it helps ! Goule

Hi crew, After spending a few monthes on other stuff that my midibox, I went back to work. I finally solved my problem (flickering values) with the distance sensors (Sharp GP2D12 - GP2D120) : a bypass capacitor between Vdd and Vss was necessary (value : 680 uF) to get stable values and avoiding the controler to disturb values for other devices connected to AIN. With this capacitor mounted, the sensors are 100% usable for midibox project ;D Hope it will help, Olivier.

Salut Flachback, Super machine, comment as-tu trouvé tes pédales ? Tu les as faites toi-même ??

Okay, as I have a second DOUT I'll try to gain some brightness by spliting my bargraphs one both. Anyway, thanks for your support, it's always 100% accurate + so fast answers !!! ;D Olivier

Hi Thorsten Thanks for your answer. I retreived a thread dealing about multiplexing : http://www.midibox.org/forum/index.php?topic=721.0 Here you say : "So - a loop takes 16 mS. And now the trick: if a LED row is not supplied with power for 15 mS, it will continue to lit for a short moment. The brightness will be lower, but you won't regognized that it's switched off/on very quickly." In my example I force the n-1 leds not used to switch off so I don't think I'm using the same method; how is it possible to have a led brighten for the other 14 ms instead of switching it off, like I do ? I took a look on the mm_vpot.c file, but I don't understand these instructions : MIOS_DOUT_SRSet(LEDRINGS_SR_ANODES_1, anode_pattern & 0xff); MIOS_DOUT_SRSet(LEDRINGS_SR_ANODES_2, (anode_pattern >> 8 ) & 0xff); Why adding 0xFF ? What does ">>" do ? In case I don't find any coding trick, could you tell me the value of the resistor I should use ? To sum up : I'd like to multiplex 16 bargraphs (10 led each) like on the classic example http://www.ucapps.de/mbhp/mbhp_doutx4_ledrings.pdf Today I'm losing so much brightness I can hardly see them lit ! Sorry to bother you with all that questions ... :-\ Olivier

Hello all, I've multiplexed four 10 led bargraphs on a DOUT. The multiplexing process works but as I simulated a 16 bargraph sequence (only feeding the bargraphs on the 4 first steps of 16) I saw that the light is much lower than before. The reason of this simulation is that I was planning to emmbed 16 bargraphs ... but I want their light to be still visible ! Is this begavior normal ? Here is the code : // This function is called by MIOS before the shift register are loaded void SR_Service_Prepare(void) __wparam { static unsigned char sr_ctr; sr_ctr = ++sr_ctr & 0x0F; switch(sr_ctr) { case 0 : { // Je sélectionne la row 1 MIOS_DOUT_PinSet0(LED_ROW1); MIOS_DOUT_PinSet1(LED_ROW2); MIOS_DOUT_PinSet1(LED_ROW3); MIOS_DOUT_PinSet1(LED_ROW4); break; } case 1 : { // Je sélectionne la row 2 MIOS_DOUT_PinSet1(LED_ROW1); MIOS_DOUT_PinSet0(LED_ROW2); MIOS_DOUT_PinSet1(LED_ROW3); MIOS_DOUT_PinSet1(LED_ROW4); break; } case 2 : { // Je sélectionne la row 3 MIOS_DOUT_PinSet1(LED_ROW1); MIOS_DOUT_PinSet1(LED_ROW2); MIOS_DOUT_PinSet0(LED_ROW3); MIOS_DOUT_PinSet1(LED_ROW4); break; } case 3 : { // Je sélectionne la row 4 MIOS_DOUT_PinSet1(LED_ROW1); MIOS_DOUT_PinSet1(LED_ROW2); MIOS_DOUT_PinSet1(LED_ROW3); MIOS_DOUT_PinSet0(LED_ROW4); break; } default : { // Je sélectionne aucune row MIOS_DOUT_PinSet1(LED_ROW1); MIOS_DOUT_PinSet1(LED_ROW2); MIOS_DOUT_PinSet1(LED_ROW3); MIOS_DOUT_PinSet1(LED_ROW4); break; } } MIOS_DOUT_SRSet(7,255); MIOS_DOUT_PinSet1(LED_BG9); MIOS_DOUT_PinSet1(LED_BG10); } Thanks for help !! Olivier

Waow thanks so much my friend !! I'll read carefully what you're explaining ;D I'd be so glad to have that SpectraSymbol XY pad work correctly for MBHP 8) Goule

Audiocommander : I'm very interrested in the resistor values & how to connect them !!! If you could post that this would be very fine ! What kind of Spectra-stuff have you connected ?? See you, Goule

Hey Audiocommander nice to see that you're improving our researches ! ;D I have to say that it's been some time since I worked on my midibox ::) I can't wait to see the new version you're announcing ! :D stryd_one : Nice to see that you're interrested in custom gear 8) In the next days I'll try to deal with my ribbon controllers, touchpad (thanks to SpectraSymbol) Also I have to say that the distance sensor is really lot fun !! Goule

Hi Bill; JOYSTICK WITH 10K POTS, here : http://www.alltronics.com/resistors.htm The handles been done by a friend of mine, completely custom. Seeya Goule

Merci Moxi ;) A priori il aurait besoin de 4x16 encoders rotatifs sans fin avec bargraphs (ou leds) pour simuler l'automation. Il veut pouvoir gérer 4 envois d'aux sur 16 tranches ... C'est bien ça, zenconcept ? A+ Goule

Sorry m8 still havn't used it. I'll post code if I use it successfully. Goule