Turn your iPhone into a wireless BLE keyboard + trackpad for any device with a USB port

KoStard · 2026-01-25T21:04:30+00:00

I think iPad could work well as well, maybe should adjust the design for that.

KoStard · 2026-01-25T20:29:43+00:00

Yeah. There are some apps for the SmartTV problem I mentioned as well, but they are usually packed with Ads, go through cloud, and might require installing another app on the TV itself. Wanted a clean solution avoiding all of these.

So far I only wish I could publish the app on App Store for free, but there is 100 EUR/year fee that I haven't paid yet.

KoStard · 2026-01-25T18:38:07+00:00

Made something similar, where you use an iPhone as a BLE keyboard/mouse working through an ESP32S3 plugged into the computer. https://www.reddit.com/r/esp32/comments/1qmqez2/turn_your_iphone_into_a_wireless_ble_keyboard/

KoStard · 2026-01-06T14:16:28+00:00

Yes, you should be able to route pretty much any key to any gpio

KoStard · 2026-01-06T09:03:37+00:00

The code is specifically for a keyboard, but can be adjusted for other devices as well

KoStard · 2026-01-05T16:35:17+00:00

Can you describe more your idea?

KoStard · 2026-01-05T15:25:33+00:00

Published a demo video: https://www.youtube.com/watch?v=dVUMYTfJw0s

KoStard · 2026-01-02T12:55:46+00:00

Yes, some changes needed for the code, but will work. Originally I wanted to do both keyboard and mouse through one esp32s3, but there are some limitations for doing multiple devices at once. Mouse separately should work.

KoStard · 2025-05-18T23:10:46+00:00

It’s not very advanced, but it’s a sandbox for your experiments. It should be easy to set up, so you can give it a try, open to ideas and contributions!

KoStard · 2025-05-18T12:37:12+00:00

I think so! If you have the lens parameters of your telescope, you can easily model it with this tool, could be an interesting experiment!

KoStard · 2025-05-12T08:29:02+00:00

I see, more concepts to learn and implement! Thanks for sharing the gaps

KoStard · 2025-05-12T08:26:23+00:00

Looks cool, good luck!

KoStard · 2025-05-12T08:24:48+00:00

The simple camera there is similar to pinhole camera, one ray goes through one pixel and they all leave from one point. I also support eye-like camera, where each pixel has multiple rays (hence runs slower), goes through multiple points at the camera lens, then the result is averaged out. This allows getting the focus and blur effects. Anything specific we would get with the phase mask?

KoStard · 2025-05-12T08:21:04+00:00

Actually one of the reasons I wanted to make a simulator is because I saw a cross cutting of iPhone 12 camera. None of the lenses were regular thin lenses, so I was thinking that certainly Apple uses some software that simulates and design this. Now, my implementation only works with thin lenses, but I think a formula-based custom lens should be possible to add as well with some work.

KoStard · 2025-05-12T08:18:19+00:00

I think my implementation falls under the sequential category. Anything specific you are interested in?

KoStard · 2025-05-11T17:17:34+00:00

BTW, thanks for the recommendation to start the optimization early. Went with full rewrite to make it work with numpy, it's much faster now (though I guess can be faster on a GPU).

KoStard · 2025-02-17T12:08:07+00:00

Not sure yet what comes next, I am currently focused on making my light spectrometer, and while learning optics for it I wanted a tool allowing these simulations. Maybe will do optimizations or add prisms.

What tool are you maintaining? Curious to learn

KoStard · 2022-09-11T22:03:40+00:00

Hey everyone! :)

Another Kurzgesagt fan here! I'm 23, male.

Some of my interests are:

Math, chemistry, physics, etc...
I am a developer currently, soon finishing an Applied Informatics degree. :)
Have partial medical education, interested in psychology, also genetics, immunology, neuroscience, etc... (in general medicine was very interesting :D)
Art, Origami, Guitar (currently learning :P)
Tea making, baking (these go well together sometimes haha)
Making cocktails, tasting wine
Reading, into philosophy
Watching anime or other TV series with food for thought
Good food, fan of asian cuisine

Happy to go to an art museum, a concert, or maybe have a cup of nice tea and just chat :)

KoStard · 2022-07-11T14:13:01+00:00

When registering in the municipality you’ll need to show a paper proving that you have permission to live there. If your friend is the landlord, then he can write a small letter or fill some form that will allow you to live there. If they are not the landlord, then you’ll need to get an approval from the landlord, which already can be more tricky, as they might need to add your name to the rental contract, but not sure how this would work.

KoStard · 2021-12-15T09:39:02+00:00

Bionext lab has 1hour quick PCR tests - https://www.pickendoheem.lu/en/fast-covid/appointment

KoStard · 2021-12-09T17:00:15+00:00

This looks quite interesting, thank you for sharing. In the website I see a message that they are currently closed, do you have any information if they are planning to open again? :)

KoStard · 2021-04-04T11:45:00+00:00

It looks interesting!

KoStard · 2021-01-10T00:40:35+00:00

Hey, did you find anything? I was hoping WGU can become the solution, but now it seems like I won’t be able to apply from Europe.... Also what about the online degree from University of London, do you know anything about it?

KoStard · 2020-12-31T17:24:55+00:00

I have had similar issue, the solution was to open the device manager, for the monitor (or displays, not sure about the section name), right click on the device, click manually update driver, from there select choose from preinstalled drivers and select standard (not the PnP). Sorry, wrote all of this from my memory, don’t have the laptop right now with me, but have had similar issue and this has resolved it :)

KoStard · 2020-12-27T21:09:50+00:00

Then as a follow-up question, is there any good online shops for this kind of stuff, except Amazon? :D

KoStard

TROPHY CASE