The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Moonlander Keyboard vs. Board Chow

    The Moonlander keyboard has per-key LEDs that I’ve denatured enough that most show a pale gray, with a few others highlighted in orange. A few weeks ago the LEDs on the right-hand thumb cluster and the N key went nuts, cycling through a surprising assortment before settling on bright red; the obvious resets / firmware reflashing / tapping were all unavailing.

    ZSA’s tech support recommended taking the thumb cluster apart to check the ribbon cable connecting it to the main keyboard half:

    Moonlander thumb cluster - PCB bottom
    Moonlander thumb cluster – PCB bottom

    Come to find out my unclean personal habits lodged a particularly corrosive nugget of board chow on the cable:

    Moonlander - corroded ribbon cable
    Moonlander – corroded ribbon cable

    It’s a more-or-less standard 0.5 mm pitch cable, but only 20-ish mm long, much shorter than the cables carried by the usual sources. ZSA sells them for $2 each, plus $25 courier shipping, so I bought three; they arrived in two days from halfway around the planet.

    Because I don’t foresee my personal habits changing any time soon, I tucked a Kapton tape snippet in the gap to serve as a gutter:

    Moonlander thumb cluster - tape shield installation
    Moonlander thumb cluster – tape shield installation

    That’s with the two hinge screws out and the cluster eased down-and-away from the keyboard enough to get the tape pressed against the keyboard.

    With the screws installed and the cluster at its normal most-downward angle, the gutter closes up:

    Moonlander thumb cluster - tape shield folded
    Moonlander thumb cluster – tape shield folded

    With the cluster in its normal operating position (for me, anyway), the gutter is nearly invisible:

    Moonlander thumb cluster - normal position
    Moonlander thumb cluster – normal position

    For the record, I tucked the remaining ribbon cables inside the left-hand thumb cluster against future need.