0 Fork 0

Files

T

mangavalkandClaude Opus 5.5 9ff5b99fa0 Add frame rate limit setting

Lets the frame rate be capped at 30, 15 or 10 fps to find out whether the
occasional random-colour flashes on single keys depend on the update rate.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-28 23:14:21 +01:00

1.7 KiB

Raw Blame History

Womier K87 SignalRGB plugin

SignalRGB plugin for the wired Womier K87 with EVision firmware (USB 320F:502A). SignalRGB's built-in EVision plugin speaks the same protocol but does not list this product ID or have a K87 layout, so the keyboard is ignored without this plugin.

Install

Copy Womier_K87_EVision.js to %USERPROFILE%\Documents\WhirlwindFX\Plugins\ and restart SignalRGB.

The device settings have a "Key test" option (column or row sweep) to check the LED map, "Low frame-rate mode" in case the keyboard drops frames at full speed, and a "Frame rate limit" (Unlimited / 30 / 15 / 10 fps). Known issue: single keys occasionally flash a random colour for a moment.

Protocol

HID interface 1, usage page 0xFF1C, usage 0x92 (collection 4), 64-byte output reports.
Colour frame: packets of [0x04, sumLo, sumHi, 0x12, len(56), offLo, offHi, 0x00, ...56 RGB bytes], where the checksum is the 16-bit sum of bytes 3..63. 7 packets cover LED slots 0..127.
The keyboard falls back to its own effect when frames stop, so colours must be streamed.

LED map

LED index = column * 8 + row (same scheme as SignalRGB's Redragon K557 layout, minus the numpad). Exceptions: Page Up 115, Page Down 123, bottom row Space 45, Right Alt 77, Fn 85, Menu 93, Right Ctrl 101, arrows 109 / 117 / 125.

Tools

tools/hidcaps.ps1 lists the keyboard's HID collections with usage page/usage and report sizes.
tools/evision_led.ps1 sends test frames straight to the keyboard, e.g. evision_led.ps1 -Leds "0=ff0000,21=00ff00" -Seconds 60 lights LED 0 red and 21 green for a minute. Used to map the LEDs; quit SignalRGB first so the two don't fight over the device.