I’m a bit confused as to how to use hardware SPI for APA102s on the Arduino Due. According to the documentation here:
https://github.com/FastLED/FastLED/wiki/SPI-Hardware-or-Bit-banging
on the due, Hardware SPI - data 75, clock 76
According to the Due Pinout diagram, pin 75 is the MISO pin:
http://www.robgray.com/temp/Due-pinout.svg
Later on in the documentation, it says:
“Hardware SPI on the arduino DUE: The MISO pin will be unavailable for use”
That seems like a contradiction since its listed as the data pin for hardware SPI, yet its unavailable.
Can we use any other data pin?
Can we use the other SPI pins for hardware SPI, such as pin 4?