The reason is that it does not occupy another timer just for LEDs, and that the LEDs can be moved to other pins easily for different hardware versions. The downside is that it occupies a few more CPU cycles and that the LEDs flicker a bit when dimmed, but I think it is a good tradeoff.
The reason is that it does not occupy another timer just for LEDs, and that the LEDs can be moved to other pins easily for different hardware versions. The downside is that it occupies a few more CPU cycles and that the LEDs flicker a bit when dimmed, but I think it is a good tradeoff.