The Via tool does not need Google Chrome. There are standalone executables (though they do need an Internet connection to work), but this is not advertised at all at the Via web site. It appears as if the only way …
dfu-util can be used to both read off and to flash (update) firmware on embedded devices, say for the firmware on a QMK-based keyboard like the Keychron V5 (about 50 KB). But it is very poorly documented. In most cases, the …
Flash utility ‘dfu-util’ gotcha: Always use option ‘-a 0’ Read more »
The short version: Two external pull-up resistors of 10 kΩ on the PS/2 DATA and CLK signal lines (corresponding to USB signal lines D- and D+, respectively) are sufficient to interface to a PS/2-capable USB keyboard. Say, to get a macro …
Sometimes it can appear as if the Windows key on some keyboards has stopped working. But that is not the case. A Windows key lock has inadvertently been enabled! A Windows key lock feature is often found on keyboards intended …
Missing Windows key on some keyboards, e.g., Cooler Master CK550 V2 and Rapoo 700RGB Read more »
The short version: The Cooler Master CK550 V2 mechanical keyboard is fully capable of macros, including mouse operations (e.g., right-click) and cancelling macros in progress. Though non real-time macros and mouse operations in macros are only possible by using the Windows-based …
Low-cost fully macro-capable mechanical keyboard Cooler Master ‘CK550 V2’ Read more »
When repurposing old (or new) PS/2 keyboards as macro keyboards (because they are much easier to interface with than USB keyboards), there are three free LEDs that can also be repurposed, e.g., for various status purposes (say, indicating a macro …
The short version is that a 17 ms delay between each key action (press or release, normal key or modifier key) for an Arduino-based keyboard will solve most problems. At this point, there isn’t any known solution for USB 3 ports, …
Blues typing out fixed texts on both QMK and Arduino Leonardo-based macro keyboards Read more »
The short version: Rapoo V500 and V700 mechanical keyboard series have the all important full macro key capability and can work completely independently of the operating system (no software is required to be installed on the operating system for the …