volatile RwReg PortReg; typedef uint32_t PortMask; #else typedefvolatile uint8_t Reg; typedef uint_t PortMask; #endif #include<SPI.h #include <Adafruit_GFXh> #define BLACK 0 #defineWHITE #define INVERSE 2 #define SH1106_I2C_ADDRESS 0x3C// 011110+SA0+RW - 0x3C or...