These are the default (recommended) pinouts assignments for the general purpose IO pins. These are not mandatory. They act more like a guide line to the default wiring inside µCNC configurations <-> modules <-> tools. This wiring can be completely modified by the user.
| Generic | Recommended assignment (not mandatory) |
|---|---|
| DOUT0 | SPINDLE_DIR or SPINDLE_FWD or SPINDLE_POWER_RELAY or LASER_PPI |
| DOUT1 | SPINDLE_REV |
| DOUT2 | COOLANT_FLOOD |
| DOUT3 | COOLANT_MIST |
| DOUT4 | DISPLAY CLK |
| DOUT5 | DISPLAY DAT |
| DOUT6 | DISPLAY CS |
| DOUT7 | DISPLAY BEEP |
| DOUT8 | IC74HC595_DATA |
| DOUT9 | IC74HC595_CLK |
| DOUT10 | IC74HC595_LATCH |
| DOUT11 | STEPPER_DIGIPOT_CS |
| DOUT12 | STEPPER0_MSTEP1 |
| DOUT13 | STEPPER1_MSTEP1 |
| DOUT14 | STEPPER2_MSTEP1 |
| DOUT15 | STEPPER3_MSTEP1 |
| DOUT16 | STEPPER4_MSTEP1 |
| DOUT17 | STEPPER5_MSTEP1 |
| DOUT18 | STEPPER6_MSTEP1 |
| DOUT19 | STEPPER7_MSTEP1 |
| DOUT20 | STEPPER0_UART_TX or STEPPER0_SPI_CS or STEPPER0_MSTEP0 |
| DOUT21 | STEPPER1_UART_TX or STEPPER1_SPI_CS or STEPPER1_MSTEP0 |
| DOUT22 | STEPPER2_UART_TX or STEPPER2_SPI_CS or STEPPER2_MSTEP0 |
| DOUT23 | STEPPER3_UART_TX or STEPPER3_SPI_CS or STEPPER3_MSTEP0 |
| DOUT24 | STEPPER4_UART_TX or STEPPER4_SPI_CS or STEPPER4_MSTEP0 |
| DOUT25 | STEPPER5_UART_TX or STEPPER5_SPI_CS or STEPPER5_MSTEP0 |
| DOUT26 | STEPPER6_UART_TX or STEPPER6_SPI_CS or STEPPER6_MSTEP0 |
| DOUT27 | STEPPER7_UART_TX or STEPPER7_SPI_CS or STEPPER7_MSTEP0 |
| DOUT28 | SOFT_UART_TX |
| DOUT29 | SOFT_SPI_SDO or TMC_SPI_SDO or STEPPER_DIGIPOT_SDO |
| DOUT30 | SOFT_SPI_CLK or TMC_SPI_CLK or STEPPER_DIGIPOT_CLK |
| DOUT31 | ACTIVITY_LED |
| DIN0 | ENC0_PULSE |
| DIN1 | ENC1_PULSE |
| DIN2 | ENC2_PULSE |
| DIN3 | ENC3_PULSE |
| DIN4 | ENC4_PULSE |
| DIN5 | ENC5_PULSE |
| DIN6 | ENC6_PULSE |
| DIN7 | ENC7_PULSE |
| DIN8 | ENC0_DIR |
| DIN9 | ENC1_DIR |
| DIN10 | ENC2_DIR |
| DIN11 | ENC3_DIR |
| DIN12 | ENC4_DIR |
| DIN13 | ENC5_DIR or PLASMA_ARC_OK |
| DIN14 | ENC6_DIR or PLASMA_DOWN |
| DIN15 | ENC7_DIR or PLASMA_UP |
| DIN16 | DISPLAY ENC BTN |
| DIN17 | DISPLAY ENC1 |
| DIN18 | DISPLAY ENC2 |
| DIN19 | |
| DIN20 | STEPPER0_UART_RX |
| DIN21 | STEPPER1_UART_RX |
| DIN22 | STEPPER2_UART_RX |
| DIN23 | STEPPER3_UART_RX |
| DIN24 | STEPPER4_UART_RX |
| DIN25 | STEPPER5_UART_RX |
| DIN26 | STEPPER6_UART_RX |
| DIN27 | STEPPER7_UART_RX |
| DIN28 | SOFT_UART_RX |
| DIN29 | SOFT_SPI_SDI or TMC_SPI_SDI or STEPPER_DIGIPOT_SDI |
| DIN30 | SOFT_I2C_CLK |
| DIN31 | SOFT_I2C_DATA |