![]() On the left, the scene to present slides is selected (arrow on the third icon of the left column), the phone overlay is active (second icon, right column), the picture-in-picture portrait camera is visible (third icon, second column) and the microphone is muted (bottom right), which is also shown by the red jog wheel knob. The macro keyboard controlling OBS in different states. ![]() The advantage is that this also allows me to retrieve the current state from OBS and visualize it on the e-ink screen accordingly. ![]() In this case, though, I am not even sending keypresses but activating scenes and changing visibility of components via the websockets plugin from Python. This is actually the main reason why I designed this macro keyboard in the first place: I needed a bunch of shortcuts for OBS and could not find a set that was easy to find while talking into a camera and that at the same time did not interfere with common shortcuts. If OBS is running, the left set of buttons allows me to switch scenes (a broader moderation view, a close-up shot, sharing slides with the close-up as picture-in-picture frame and an empty “video mute” scene) and the right set of buttons controls elements (microphone mute, overlay screen of my phone, picture-in-picture of the slide scene etc.). Similarly, I use Python to control OBS 6 via its websockets plugin. Of course the script also listens for state changes of the lamp, so the icon on the e-ink screen changes accordingly 5. The default layout has a button that triggers an MQTT message (in a Python script) to switch a lamp in my office. I actually use this a lot to control additional things with Python or to switch functions of the buttons. However, in this case it is not set to send a keystroke, but instead triggers a script to switch the function of turning the wheel. You can press the wheel and trigger a ninth 4 button, which can also be associated with keypresses. How can it control both? Well, it doubles as another button. In Gimp, it controls the tool size (brush size, pen size, eraser size, you get the idea…) or the tool opacity (brush opacity, alright, you know). This is designed as a so-called jog wheel, commonly used in video editing to precisely move to a specific frame while at the same time allowing to quickly skip larger periods with the same control element 3. Keystrokes or sequences cannot only be assigned to those eight buttons, but also to the big knob at the bottom. At the same time, the device shows some icons next to the buttons to tell me, which assignment is currently active. Instead, if I press the “cut to selection” button, the device sends a quick sequence of “Alt+B” to open the image menu, followed by “Z” to select the function from the menu 2. Those are actually not simple key strokes and these particular examples do not even have a direct shortcut. Right: If the image editing software Gimp is in focus on my PC, the macro keyboard switches to shortcuts specific for Gimp with matching icons. ![]() Left: The default layout of the macro keyboard with some media control buttons, a button to control a lamp in my office, a demo button and two shortcuts to applications. But if I open up Gimp 1, the keys change their meaning to functions within Gimp, which I need regularly and for which I cannot remember the shortcuts: For example “cut size to the selected area”, “automatically cut the image size to the content” etc. If I press them, the device sends the media buttons to the PC as if those buttons were pushed on a normal keyboard with multimedia keys. So, for example, by default the top four keys are assigned to media control keys: Play, pause and skip buttons. The special thing about it is that I can dynamically reassign keys and display the current key assignment on an e-ink screen. The macro keyboard with an rgb backlit jog wheel, eight buttons and an e-ink display at the center. So, it is a macro keyboard - a keyboard to send macros. There it registers as a regular keyboard and sends individual key events or sequences of keypresses if I push one of the buttons. What does it do?Īs you can see from the pictures, it is a device with eight buttons, a large dial and a display and it is plugged into a PC via USB. So, you now have an idea what I am talking about? Then let me explain the details in this article. Let me show you in a video: Click the image to see the video on. What does that mean? Well, it is a device that pretends to be a regular keyboard, but the meaning of each button changes depending on which application you currently try to control. I built a dynamically assignable macro keyboard with an e-ink screen.
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