liinnerd

you could use encoders next to the pots if you don't want to use a second core.

soldering the bridges is easier then making a complete new pcb I.M.O. ;) however grouping things on one larger pcb is a good idea!

your english is fine ;) ... I just wanted to show you my threat because its very similar.. doesnt matter if you use 7 or 8 leds ;-) But then again if you only use 16 encoders + rings then I would stay with the standard ledring configuration. just connect your 16x7 leds like the ledring schematic shows you. when everything works, you could configure the ledring pattern to your needs.

oh no reason at all, thought it might be easier, but it aint :-) And when I use 5 SRs how would i configure it then? I suppose it also needs some coding

good idea. But here in Holland farnell charges 5 euro's handling costs for orders below 50 euro's.. don't know if it's the same in the UK. So it could be expensive to order just 2 pots ;-)

Hi Gino, You could connect just 7 leds instead of the 11 shown in the example. I've done it with 8 leds (I'm using ledbars). I'm also trying to reduce the code to 8 leds to drive 32 ledbars from 1 Doutx4. But no luck so far. My problem looks a lot like yours (if i'm correct) take a look at my post: http://www.midibox.org/forum/index.php/topic,13899.0.html Hope i'll figure it out soon. Grtz, Richard

Okay i took a peek at the code. I removed all references to ledring handler (mb64_ledrings.inc) and configured the system (main.inc) to use 1+2 x 3 (SR 1+2 cathodes, SR 3 annodes) for the first 16 ledbars and sr 1+2 x 4 for the second 16 ledbars. Compiled it... uploaded it..... but as I thought it doesnt work ??? Can it be done this way? or am I miles off... ;-)

YES you're right.. maybe I wasn't clear on that ;-) I have the hardware already finished and I could just use 2 DOUTx4, but if it could be done with one DOUTx4 it would be more efficient. My asm coding skills are very limited and I don't know if it's hard to do. Do you think it needs a lot of programming?

Looks like you could use them... there 10K Lineair so shouldn't give any problems. The difference between the two? The price ;-) Looks like one is horizont PCB mount and the other vertical. Grtz, Richard

Tilted> thanks for your input... but if you look at the example pdf (http://www.ucapps.de/mbhp/mbhp_doutx4_ledrings.pdf) the 4the register is use for leds 9,10,11 so it should be possible to drive the next 16 ledrings with this SR and connect the cathodes on SR 1 and 2. Or am I missing something? Maybe I should just try it... but i'm afraid i'll just mess things up ;-) I had already a lot of probs to get thing working :)

Let me refrase the above. If I only use 8 Leds for a Ledring, would it be possbile to use one DOUTX4 for 32 Ledrings? And if so, do I need to change something in the sourcecode or can I just configure the correct SR settings in the main.asm? Richard

It's been a long time since I posted a question on this board but this is one I can't figure out on my own. So I hop someone can point me in the right direction. I'm configuring my MidiBox 64e to use 16 Ledbars as ledrings and connected them as shown in the DOUT example (http://www.ucapps.de/mbhp/mbhp_doutx4_ledrings.pdf) I've configure the setup file and everything works. But since one ledbar only uses 8 leds I thought let's disable the 4th register in the setup #define LEDRINGS_SR_ENC1_16_CATHODES_1 1 ; first shift register 16 LED rings for module 1 cathodes - #define LEDRINGS_SR_ENC1_16_CATHODES_2 2 #define LEDRINGS_SR_ENC1_16_ANODES_1 3 #define LEDRINGS_SR_ENC1_16_ANODES_2 0 ** edit: somehow the whitespace between cathode and register numer was lost in the code display above. FIXED IT! ** But when I upload this configuration the ledbars won't light up. When I change the LEDRINGS_SR_ENC1_16_ANODES_2 to SR 4. everything is okay. Is it possible to disable it somehow? Not that its really necessary but I'm just curious. I will extend my box to 32 ledbars which leads me to my other question.... Is it possible to share the cathodes from the next 16 bars with SR 1+2 and drive them with the 4th register to connect 32 LEDBARS on one DOUTX4? Hope someone can help me thanks!, Richard

I Like using the screen, but only for visual feedback from certain plugins/effects settings. It would be great if you could really customize the ableton layout so you would only need a 10" screen (or smaller). As for the controls; You could insert a max/msp patch by using rewire but I don't know if it's possible to extract clip info etc and send it to your midibox.

Hey! i didn't said it would work ;-) I tried to use the API but it crashes as soon as I try to enable it in Live. Hopefully the collaboration between Ableton and cycling'74 will result in a better solution for this problem soon!!!

To do those things you don't need to do fancy stuff with max/msp. You can simply assign MIDI ctrl to Ableton, e.g: per channel start/stop and scene up and down is also possible. Just use a rotary encoder and assign clockwise turn to up and counterclockw. to down. If you really want to have flashy disco leds than take a look at Live API http://code.google.com/p/liveapi/ Live API can be used as a bridge between Live and Max/Msp and allows you to extract more info out of Live. (as far as I know this is what Monolake also used)