RepRap discount full graphics smart controller without Ramps 1.4 sheild

I have recently been given the constructor
U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=/ 10, / reset=*/ 8);
but I don't understand the pinout from exp 1

I suspect that He was referencing the pinout for the smart adapter for the RepRap discount full graphics smart controller please help me

I have been given only 3 pins but there are a total of 8 pins leading to the Arduino

Will this help? RepRapDiscount Full Graphic Smart Controller - RepRap

@bobdabuilder676
You posted in the wrong section, the section you posted in was NOT for your projects. Read the description of the section.
Please take more care where you post in future.
I moved your post here.

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