how to connect alps encoders and led matrix (fm)

[basti]

hi

can you tell me, how to connect the alps encoders.. which pin is the vs pin??

and how do i connect the led matrix on midibox fm?? i don't understand the mbfm_din_default.pdf

basti

[audiocommander]

Hi basti,

here you'll find existing encoder connections:

http://www.midibox.org/dokuwiki/doku.php?id=encoders

(see specifications)

As there is no entry about Alps Encoders, you might try and find out the pin assignment. It's best to set the Speed to Normal if you are coding your own application; else just try it; there are just three pins, on of them is ground; most times the middle pin –

to make a starting point you could use a multimeter; when it beeps on each turn, you found the ground then test in which direction it counts.

there is also a testing application in the downloads section on uCApps.

it would be very kind if you could add your informations to the wiki, once you found the right pins :)

Cheers,

Michael

[basti]

the first thing is.. my multimeter doesn't beep..

it only shows 0000 if there is a connection between + and -

and i think, it's display is to slow to show 0000, before it has to show 1 for no connection, u know

the other thing is... i don't have any modules at the time...

is it right, that i can use a led on the middle pin (definitly not ground.. its the left or right) an connect on the anode the re-connection to my psu..

then i put the psu on the left and right pin... when i now spin the encoder the led mus blink, right??

[edit]

i tested this method with the leds..

i think i dondt have to care how to wire it, besauce in every way i soldered the led on the encoder, it blinked...

could this be right??

(to midibox fm)

can anybody tell me hoe to plug the ld rows together with the buttons??

[audiocommander]

you could connect the encoder by kroko-wires, so you can easily swap them for testing purposes... then you don't need to solder around ;)

the LED should blink twice, but not with the ground connected to the Anode...

Cheers,

Michael

[basti]

i think i blinks twice... but so fast that i cant see??

i will wait till i have my boards... i think they will arrive on saturday or monday..

than, when soldered i can test on them...

so my only problem is now... how to connect the matrix rowleds and -buttons..

anyone have a tip?`?

[c0nsumer]

This should help you out:

http://www.nuxx.net/wiki/MIDIbox_SID-NUXX_-_MIOS_Changes#mios_tables.inc

I'm using some Alps EC12E24204A8 and Pin B goes to the even numbered input, and mios_tables.inc needs to be set accordingly. Pin A then (obviously) goes to the odd numbered input, and C is common and goes to ground.

Hopefully it's the same for yours.

-Steve