MACH3 Martzis USB HID Interface MUHI Board


The Mach3 UsB Martzis USB HID Interface (MUHI) card is connected to PC via USB bus and operating systems recognizes it as two joystick devices both having 32 buttons and 4 axes.

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Basically, the MACH3 USB Martzis USB HID Interface (MUHI) Board is a generic Human Interface Device (HID) so most operating systems support it, including Windows and Linux. Although, The card was primarily developed to be used with LinuxCNC software, there is a plugin wich makes the card Mach 3 compatible. Furthermore, the card works also with Mach 3 keygrabber without encoder support. Please check this video.

MACH3 USB Martzis USB HID Interface (MUHI) Board Inputs

  • 64 digital inputs (LS TTL)
  • 4 analog inputs (0-5V)
  • 4 encoder inputs (1x or 2x)
  • All 64 digital 5V logic inputs are pulled up via LS TTL internal resistors. You can connect a simple switch can directly between input and ground.
  • 4 analog inputs can measure a voltage between 0-5V. You can connect a potentiometer directly to these inputs. Connect the center wire to the input pin and two other wires to ground and 5V connectors.

Installation, Configuration and Downloads


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