All right, next update is online. I created a new branch, called pinFlexibily. After testing I will merge it with the master branch.
You can find it here:
This update introduces two new things:
Offset
An optional argument to all functions that set one led/group, called offset. When would you use this?
Say you have 2 boards, each with 4 shift registers and 10 RGB LED's. That means that you have 2 empty outputs on your board.
The second board would be misaligned because of this gap. You can now use ShiftPWM.SetRGB(lednr, r,g,b,2) for the second board to correct this. You can still use SetRGB(lednr, r,g,b), because offset defaults to 0.
Pin Grouping
With the function ShiftPWM.SetPinGrouping(int grouping), you can now set how your pins are grouped together by color.
If your LED's are connected like this: RRRR-GGGG-BBBB-RRRR-GGGG-BBBB.. you can use SetPinGrouping(4).
SetRGB(5,255,0,255) will set output 13 and 21 to 255. (remember counting starts at 0).
I would appreciate some feedback before I merge this into the main branch.
Next up, in order: better documentation, bit code modulation instead of PWM, debugging the Matrix version.