Product Usage:The expansion board can be used as engraving machine, printer and other drive expansion board.
Objects Used:Compatible with GRBL 0.8. Open source firmware running on for Arduino that converts G code commands into stepped .
Function:PWM spindle and direction pins, support 4-axis (X, Y, Z, A - you can copy X, Y, Z or use the pin of D12 and D13 to custom firmware to perform the complete axis 4).
Voltage: DC 12V-36V (only DRV8825 driver can handle voltages up to 36V, so please consider the power supply voltage)