Posts with «e-ink» label

Dynamic Macro Keyboard Controls All the Things

Keyboard shortcuts are great. Even so, a person can only be expected to remember so many shortcuts and hit them accurately while giving a presentation over Zoom. [Sebastian] needed a good set of of shortcuts for OBS and decided to make a macro keyboard to help out. By the time he was finished, [Sebastian] had macro’d all the things and built a beautiful and smart peripheral that anyone with a pulse would likely love to have gracing their desk.

The design started with OBS, but this slick little keyboard turned into a system-wide assistant. It assigns the eight keys dynamically based on the program that has focus, and even updates the icon to show changes like the microphone status.

This is done with a Python script on the PC that monitors the running programs and updates the macro keeb accordingly using a serial protocol that [Sebastian] wrote. Thanks to the flexibility of this design, [Sebastian] can even use it to control the office light over MQTT and make the CO2 monitor send a color-coded warning to the jog wheel when there’s trouble in the air.

This project is wide open with fabulous documentation, and [Sebastian] is eager to see what improvements and alternative enclosure materials people come up with. Be sure to check out the walk-through/build video after the break.

Inspired to make your own, but want to start smaller? There are plenty to admire around here.

This retro-looking rotary cellphone is free of modern-day distractions

What we carry today in our pockets is nominally called a “phone,” but more often than not we’re using it to do various other computing tasks. Justine Haupt, however, wanted an actual phone that “goes as far from having a touchscreen as [she could] imagine.”

What she came up with is a rotary cellphone that’s not just a show-and-tell piece, but is intended to be her primary mobile device. It’s reasonably portable, has a removable antenna for excellent reception, a 10-increment signal meter, and, perhaps most importantly, doesn’t make her go through a bunch of menus to actually use it as a phone. Other features include number storage for those she calls most often and a curved ePaper display that naturally doesn’t use any power when revealing a fixed message.

The project was prototyped using an Arduino Micro. It was then laid out of a PCB with an an Adafruit FONA 3G board and an ATmega2560V, programmed in the Arduino IDE.

Haupt has published a detailed look at the build process here.