NANO CNC Shield

// X
#define	X_STEP_PIN   DIO5
#define	X_DIR_PIN    DIO2
#define	X_ENABLE_PIN DIO8

// Y
#define	Y_STEP_PIN   DIO6
#define	Y_DIR_PIN    DIO3
#define	Y_ENABLE_PIN DIO8

// Z
#define	Z_STEP_PIN   DIO7
#define	Z_DIR_PIN    DIO4
#define	Z_ENABLE_PIN DIO8

// E spinder
#define	E_EN_PIN DIO12
#define	E_DIR_PIN  DIO13

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  NANO CNC Shield Schematic

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  Nano CNC Shield Pins

• D9 ~ D11 = XYZ Stop
• D9 = X+ / X- , D10 = Y+ / Y-, D11 = Z+ / Z-

• A0 = Abort
• A1 = Hold
• A2 = Resume
• A3 = Coolen
• A4 / A5 = I2C
• A6 / A7 = Extra