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====== MBHP GM5 Module ======
{{http://www.ucapps.de/mbhp/mbhp_usb_gm5_v1_1.jpg}}
===== Overview =====

The GM5 is a USB MIDI interface IC from Ploytec.  It provides up to 5 independent MIDI inputs and 5 independent MIDI outputs.  It is only available in a surface mount package, and only in large (250+) quantities.  TK organizes regular bulk orders for this IC.

The MBHP "USB GM5 Module" is a simple PCB which holds the GM5 IC, and all required components for one MIDI input and output.  It does not require any other MBHP modules to provide basic USB<>MIDI I/O functionality.  A single MIDI input and MIDI output jack may be mounted to the board, or connected via SIL headers.  An additional 4 inputs and outputs may be connected to the module via a single header, in which case each physical i/o would require its own support parts (optocouplers, resistors, diodes etc).  "Digital I/O" pins are also available for direct interface to a Core module, with no need for optocouplers.

==== Alternatives ====

An alternative to this module is the "GM5x5x5", a standalone 5x5 USB MIDI interface on a single PCB.

Another alternative is the USB PIC module, in which USB is wired directly to a PIC-based Core running special (non-MIOS) firmware. Further development of this module is unlikely, given the low cost and great performance of the GM5.

===== Construction =====

==== Parts ====

===== Operation =====
==== Drivers ====

No drivers need to be installed to use the GM5 with Linux or Mac OS X computers.  It is a class-compliant device.

Windows computers may work with the GM5 using the Microsoft's driver, however the Ploytec driver works better.

==== Setup ====

=== Windows ===

=== Linux ===

=== Mac OS X ===
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