lqml VS ledstudio

Was wondering how practical using lqml for developing Android apps would be.

screenshot / repo / official meshtastic web site

There is lqml, which is cross-platform, including iOS.

Check out https://gitlab.com/eql/lqml and other repositories in this group.

The advantage of LQML is that you can develop your app on the desktop first (as I did with the cl-repl app), mostly without restarting anything, because QML can be reloaded at runtime. A good example to learn how this works would be this one: qml-auto-reload

Notably - 1. https://github.com/lispnik/iup/ 2. https://gitlab.com/eql/lqml 3. https://github.com/bohonghuang/cl-gtk4

In this example, there is an example call to Objective-C, which in turn is callable from Lisp.

That’s pretty cool.

I did something similar once, where I wrote a Qt application that let you add effects to a timeline, which would get saved as json and could then be run on a Raspberry Pi to control a grid of NeoPixel LEDs. Each effect on the timeline has a start and length, which pixels it affected, RGBW colors, easing function in and out and effect type (fade, blink etc — there were a few basic effect types that could be combined to create more elaborate effects). The Qt application was able to simulate the LEDs in a GUI using the same code that ran on the RPi (just the GUI was replaced with LED driver code there). It was used to play animations on a t-shirt that was covered in a grid of LEDs made for a local musician. It was a fun project. The code is on GitHub but it’s terrible quality due to having been written over the space of 3 days and then never touched again: https://github.com/danielytics/ledstudio

I have the code on GitHub but I haven’t built the code in 4 years so don’t have a screenshot. Like I said, the code was written in about 3 days and QML allowed me to iterate quickly, but the resulting code quality isn’t great (since it was a once off project, built and used in the same week and then never used again, I didn’t clean it up or anything). One key feature was that the LED strip could be connected to a Raspberry Pi and the tool could be run directly on the Pi to control the LEDs directly from the editor, or it could be run on my laptop and simulated.

Anyway, the code is here: https://github.com/danielytics/ledstudio

And the QML specifically is here: https://github.com/danielytics/ledstudio/blob/master/main.qm...

If I were to clean it up, I would at least split the different labels into their own QML files but hey, shortcuts were taken over those few days :)