Shift Registers with leds about control-surface HOT 9 CLOSED

The connections are listed in the comment at the top of the sketch: https://tttapa.github.io/Control-Surface/Doc/Doxygen/da/d78/Toggle-LEDs_8ino-example.html
You cannot change the SPI pins (MOSI, CLK), so you have to use those.

On the Leonardo, you have to change the SS pin to something else, because the SS pin is connected to the RX LED.
That means replacing the SS on line 67 to some other pin number:

If you really can't use the SPI pins (why not?), you could use the bit-banged version, as demonstrated in this example: https://tttapa.github.io/Control-Surface/Doc/Doxygen/d1/d5f/2_8BitBang-Blink_8ino-example.html

from control-surface.

The problem is I don't understand what pins on Arduino are MOSI, CLK and SS? if I replace SS by any digital arduino pins like that:
SPIShiftRegisterOut<mux.length()> sreg = {10, MSBFIRST};

What about other pins MOSI and CLK? Where should I connect that pins on Leonardo?

from control-surface.

The SPI pins are on the ICSP header.

from control-surface.

I found only MOSI pin here. Can you highlight other 2 pins?
Can SS pin be any digital pin on arduino?

from control-surface.

CLK (clock) and SCK (serial clock) are the same. In master mode (which is what you use for shift registers), SS can be any digital pin.

from control-surface.

Am I right?

from control-surface.

I think CLK is the top one in the middle, not the right one.

And SS can be any pin, as long as you change it in the code. Pin 10 is a popular choice, because it's the SS pin of the Arduino UNO.

from control-surface.

Thanx for your answer.
I appreciate your work! I will close issue

from control-surface.

Glad to hear :)

from control-surface.