microHAM micro KEYER firmware v5.0

microHAM · Released Nov 22, 2007 · First seen Sep 9, 2026

Source: microham.com

v5.0 is not the latest firmware for the microHAM micro KEYER: the current version is v5.4 (March 5, 2008). Go to v5.4

In short — summary by updatemystuff.com

PS2 keyboard BackSpace remapped to ESC; protocol updated for router v5.1.0 compatibility.

  • PS2 BackSpace key remaps to ESC
  • Protocol and settings format updated for router v5.1.0 compatibility

Written from microHAM's release notes, which are printed in full below.

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What's in this update

  • Some changes in keyer protocol and settings format was introduced to be​ compatible with router v5.1.0. Hence firmware MUST be upgraded and power-up sett​ings MUST be again stored to EEPROM of keyer.
  • BackSpace on PS2 keyboard now functions as ESC.

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Other versions for this product

See the full firmware history for the micro KEYER