Let's imagine a strip of 30 LED, each of those controlled by daisy chained shift registers and a micro controller.
I would need 4x 8-Bit shift registers like the SN74HC595, and the last 2 outputs wouldn't be used.
If this strip of LEDs (and associated shift registers) was part of a module assembly where you could chain modules one after another, and the output of the first module would get shifted to the input of the following module, etc... This would work fine with multiple of 8 LEDs, as the SN74HC595 includes an output for daisy chaining.
But the strip is 30 LED only so the 6th output of the last shift register should be shifted to the next LED strip, thus by-passing the last 2 bits.
Is there an easy way to do so ?
EDIT: Looking for a hardware way of doing it, as 30 LED is an example but let's assume the length of the LED strip can be any number, and I want my code to work with any combination of LED/number of modules.