grif

I found keyboard switches cheap and bought 150 or so... problem is now I can't find key caps for them I'm going to try to figure out if I can mount a led near the upper edge of them and maybe use clear key caps if I can find them You're right about the time spent searching for parts being worse than the money I'm seriously considering taking a key from a keyboard and making a die so that I can injection mold my own ten at a time Has anyone hear ever owned a 909? I love the way the keys are on it It's almost identical to a keyboard with a little led window on each key If anyone owns one could you please photograph the switch so I can see if the LED is integrated into the switch If all of this still proves to be a problem I guess I'll do it like the 707 where the led is behind a little window/lens above the particular step Adam

does anyone know where I could find keyboard style switches that have led's built in? these can be seen on older keyboards on the numlock or pause key ideally I'm looking for switches/leds/keycaps that look like the roland 909 Adam

thanks for the quick replies now I know what's goin on... except for this matrix thing off to the search!

will MIOS support a midibox seq similar to the doepfer schaltwerk or the genoQs octopus? I count about 218 digital inputs and 200 digital outputs on them my main questions are... is it even possible to have more than 128 digital inputs on this sequencer project? and if so are are these assumptions correct? I'm assuming I would need more than one core and something like 8 DIN boards and 5 DOUT boards... I'm also assuming I would need to extensively edit one of the setup*.asm files am I missing anything?

does anyone know how to test the 6n138 optocoupler with a dvm? i was thinking maybe i could breadboard a little test circuit if necessary... grif

i had a lot of problems with eagle... i even tried quite a few alternatives... and then i found this http://www.ele.auckland.ac.nz/~wsim012/eeeeagle/eagle_frontpage.php4

i found this on google and it helped me a lot http://cba.mit.edu/projects/fablab/docs/D.pdf i also used this one a little http://www.piclist.com/techref/microchip/intro/pic.htm