Hey all. New to - and very excited to discover - FastLED. Curious the max number of parallel strips I can get on any single device. I see from the sample code that the Teensy has a 16 pin mode [WS2811_PORTDC], and the Due seems to have an 8 pin mode. Here’s my question: is there a way of running more than a single port at a time? Or some other way to run more in parallel? If not, why would the Due, with so many I/O ports be limited to 8 pins, while the Teensy (it’s so teensy!!) offer 16 parallel pins. My hope is to get 25 strips of 10 LEDs running in parallel (or as many as I can).
It’s not just about the number of pins, it’s about how they’re arranged along I/O port registers and the DUE’s arrangement is, quite frankly, broken and scattered, which is why there isn’t more than 8-way output on it.
Mikey, did you need those strips of 10 LEDs to display different things? If not, you can plug them all into the same single I/O pin.
Yes, I did need them to display different things. And thanks for the explanation. Sounds like this is a hardware issue. I’ll stick with the Teensie.
I’m running PORTDC (x16) and PORTB (x8) simultaneously with a Teensy 3.6, plus another 16 on solo pins, without a problem. 18ms write time for 1220 leds.
@Franck_Marcotte Glad someone had a use for that PORTB 
@Kris_Couck Never had a chance to thank you! PORTB made my project possible