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Pinout for the Pokeys57CNC CNC Machine Interface
Pinout for the Pokeys57CNC CNC Machine Interface
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Pokeys CNC Interface Board

PoKeys57CNC Mach4 and Mach3 motor controller can control up to 8 STEP/DIR signal driven motors (stepper motors, servo drives, etc.) in various applications. The device contains dedicated connectors for connections with motor drivers, pendants, (HD44780-compatible) LCD module, etc. Also 5 analog inputs with 12-bit resolution are available. The device also features four galvanically-isolated open-collector outputs and isolated 0 to 10 V analog output.


You will need to purchase the cable pack for the Pokeys57CNC PoKeys57CNC CablePack

Other items to use with the Pokey57CNC

PoStep60-256 Stepper Driver up to 6 Amps

PoStep25-32 Stepper Driver up to 2.5 Amps

Download the Pokeys Configuration and PoBlocks. This is required to update the firmware for the Pokeys57CNC and configure some of the controller's settings.

Download the Mach3 plugin and manuals

Download the Mach4 plugin and manuals

This feature rich CNC Machine interface board has the ability to be controlled by Mach3 and Mach4. One of the coolest features is that this CNC motion controller board can control up to 8 motors/axes. You can hook up a pendant to control the CNC machine away from the computer and controller giving you access and safety to the parts of the machine that you are currently using. See how the motion controller is working with the available LCD connection. Use the available 0-10V analog out signal to control the speed of your spindle from the control software: Mach4 or Mach3.

USB 1.1/2.0 Compatible and standard with English USB keyboard simulation with triggering support for up and down keys. Also a standard USB joystick simulator (6 axes, 32 buttons with triggering support.)

Ethernet connection 10/100 with DHCP client or fixed IP support also a TCP or UDP connection with the device.

28 digital inputs or outputs with pull-up resistors available as virtual USB keyboard keys.. There are additional 4 dedicated digital outputs.5 analog inputs (12-bit)

The multiple encoder pair inputs with three additional dedicated high-speed encoder and one ultra high-speed encoder inputs.,A high performance 8-axis 125 kHz pulse engine with dedicated motor connectors.

Peace of mind with fail-safe support in case of communication interruption.

Can support for up to 100 sensors, that can be connected to I2C bus, 1-wire bus or on the general purpose analog inputs.

With intuitive and user-friendly software and third-party support via communication DLL library and extensive protocol specification document that allows porting to other systems.


Mach4 Spindle VFD Connections. OC (Open Collector Outputs): Forward on/off control- OC1- to DCM (or VGND on some VFDs)- OC1+ to FOR (or FWD on some VFDs)Reverse on/off control- OC2- to DCM- OC2+ to REV

Mach3 Spindle VFD ConnectionsForward on/off control- Relay1 Connection Terminal 1 to DCM (or VGND on some VFDs)- Relay1 Connection Terminal 2 to FORReverse on/off control- Relay2 Connection Terminal 1 to DCM (or VGND on some VFDs)- Relay2 Connection Terminal 2 to REV

- Pkeys57CNC Config in Mach3: Pokeys Mapping -> Scroll down to Pulse Engine Outputs - -> Set the Relay 1 to Output #1- -> Set the Relay 2 to Output #2

USB communication speed can be affected by virtual keyboard functionality. Disable the HID interfaces to improve smoothness and speed of the stepper motor operation.

Related Tutorials
Thumbnail: USB Controller wired to one driver and one stepper motor Wiring the CNC Motion Electronics with the USB Interface
Here is a tutorial on connecting drivers and stepping motors to the USB Interface for CNC machines. We offer the USB interface/controller for those that have a laptop, or don't have a parallel port on their computer, and who prefer to use the Planet-CNC software. Here I show a video on the entire process to get your USB Interface connected to the stepper drivers and stepper motors correctly and in a simple and trouble free way.
CNC Electronics Tutorial Image CNC Electronics and Wiring
This tutorial will make you an expert in wiring CNC electronics using a parallel breakout board and standard stepping motors and stepping motor drivers.
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So, what exactly is a 3 and 4 axis stepping motor driver board. Actually, I am presenting the 3 axis stepping motor driver board in this article, but there is another much smaller board that will connect to this one that will provide an additional driver, making it useful for those wonderful 3D projects that use an indexer.