Can't find library for 4-wire LED strip

[HolesFlow]

@Grumpy_Mike

You can also bit bang the data at them, this will be slower but will allow interrupts to be on for things like serial data, and servos, which don’t work when the interrupts are off. Use port addressing rather than digitalWrite for the maximum speed.

I have seen bit-banging (shifting), but was unaware of addressing ports directly being a faster alternative to digitalWrite().