only one ledring for multiple encoder?!

MIOS programming (Assembler)
1

i’m currently building my new midibox, and i will mount both 16  pots and 16 encoders.

but i have decided not to mount 16 ledring for each encoder (TOOOO much work…), and to use them without indication.

but i was thinking this:

is it possible to mount only one “ledring” (in the form of a meter… i.e. not a “ring” but several led in a straight line) and assign this only one ring to every encoder?

my idea is that, when i move an econder, this single ledring will monitor the state of the encoder that i’m moving… swithcing its state depending on the encoder used in that moment…

i will not monitor the status of every encoder, but only see a single  encoder value…

2

Hi Matteo,

it’s impressing that you are never giving up to save money and effort :wink:

A change should be simple, open mb64e_ledrings.inc and replace following lines:

incf	MB64E_LEDRINGS_CTR, W, BANKED
andlw	0x0f
movwf	MB64E_LEDRINGS_CTR, BANKED
[/code]


by:
[code]  
 ;; always display status of last modified encoder  
 movff MB64E\_LAST\_ENTRY, MB64E\_LEDRINGS\_CTR

Best Regards, Thorsten.

3

ahaha!! :slight_smile:

thorsten, you are right!

i try always to achieve the maximum i can with the minimum expense…

also this is part of the funny to build the midibox! :slight_smile:

there is always the behringer BCR control to buy, if one wants the simple  things!!!

(this topic could also be name: “one ledring to rule  them all”… i’ll throw my MidiBox in the flames of  Mount Doom… :wink: )

4

Hi Matteo,

it’s impressing that you are never giving up to save money and effort :wink:

A change should be simple, open mb64e_ledrings.inc and replace following lines:

incf MB64E_LEDRINGS_CTR, W, BANKED
andlw 0x0f
movwf MB64E_LEDRINGS_CTR, BANKED

uhm.. i tried but it didnt worked. when i change encoder, the leds simply turn off… by:

;; always display status of last modified encoder
movff MB64E_LAST_ENTRY, MB64E_LEDRINGS_CTR

Best Regards, Thorsten.

5

How did you connect the cathodes of the LEDs, and to which shift registers (SRs) are the anodes connected?

Best Regards, Thorsten.

6

the connections are the one indicated in hte schematic.

only one ledring is presetn: the cathode to SR1, and the 11 leds to SR 3 and 4…

7

So, with a single LED ring it makes sense to connect the cathode line directly to ground, so that it is always powered

Best Regards, Thorsten.