Hi Midiboxers!
Thorsten’s Midibox NG can be a little beast in terms of complexity for me ![]()
It would be great if someone can help me.
I like to equip my Midibox NG with 16 8-segment led bars.
Each bar should be controlled with a separate received CC event like this way:
CC value = 0 -> all bar segments off
CC value = 64 -> bar segment 1,2,3,4 on
CC value = 127 -> all bar segments on
Due to the conditions of my box, I decided to divide them into two 4x16 matrices (one column = 2x8-led bars)
Every matrix is driven by 3 DOUT-SRs.
Matrix 1
SR1 D7 - D0 are connected to the anodes of LED Bar 1, 3, 5, 7 (column 1-8)
SR2 D7 is connected to all cathodes of bar 1, 2 (row 1)
SR2 D6 is connected to all cathodes of bar 3, 4 (row 2)
SR2 D5 is connected to all cathodes of bar 5, 6 (row 3)
SR2 D4 is connected to all cathodes of bar 7, 8 (row 4)
SR3 D7 - D0 are connected to the anodes of LED Bar 2, 4, 6, 8 (column 9-16)
…
But now i am confused how to control the led bars independently via CCs because they are parts of led matrix columns.
Led matrix patterns?
Each led separately with emu_led_offset?
Range mapping?
Thanks for any suggestions!
Best regards
Marxon
