Lead software engineer @René Koch AG, Ex-core-dev @Kitsu Media inc., and quadcopter madness enthusiast. I write about software development, engineering and stupidly fun side projects.

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

17TRACK is the most powerful and inclusive package tracking platform. It enables to track over 170+ postal carriers for registered mail, parcel, EMS and multiple express couriers such as DHL, Fedex, UPS, TNT. As well as many more international carriers such as GLS, ARAMEX, DPD, TOLL, etc.

Vegas performer Apollo Robbins, or "The Gentleman Thief," recently appeared on the "Today Show" with a very nervous-looking Matt Lauer, Willie Geist and hang...

As you know it is possible to change software and repair corrupted software using fastboot. Sometimes we can get Fastboot errors. And  we have compiled some

A fully printable third hand to hold those small parts or wires while soldering | Download free 3D printable STL models

Remixed for looser tolerances and made them single pieces to vary quantity easier | Download free 3D printable STL models

This is a free model, If you get the chance to 3D Print and assemble please send me your drone video.
FPV drones are a fun but often costly hobby for beginners. Opting for a smaller drone will reduce the chance of damaging the drone when one invariably crashes, and the smaller props are also a lot safer if there are any innocent bystanders. In this project, we wanted a 3D Printable FPV drone that they could comfortably fly in-and-out of doors, so of course they built their own.
Once the drone’s frame was 3D printed, the most complex part about soldering four small-yet-powerful 8.5 mm motors to the AIO flight controller is ensuring that you attach them in the correct configuration and triple-checking them. A quick reshuffling of the battery connections and mounting the FPV camera all but completed the hardware side of the build.
Before plugging your flight controller into your PC to program, the battery must be disconnected unless you want to fry your board. Otherwise, flashing the board and programming it simply requires patience and a lot of saving your work. Once that’s done and you’ve paired everything together, the sky or ceiling is the limit!
We have made a tutorial video of the entire build, below we will also provide a full list of the parts needed, as well as alternative options like building the frame in less than 6 hours for anyone wanting to make their own and fly the same day.
Specs and Features
Built for Long Range, high flight duration and optimal performance
Frame 3D printed In
Frame is Printed in One piece
Drone Uses Li-ion Battery cells (2S)
Parts List
3D Printed Frame (1 Piece)
Flight Controller: Happymodel ELRSF4 2G4 AIO 5-in-1
Receiver: ExpressLRS 2.4GHz (integrated inside FC)
Camera: Ant Nano FPV Camera
VTX: 5.8GHz 25mw~200mw 40ch VTX (integrated inside FC)
Propellers: Gemfan 75mm bi-blade Propellers
Motors: Happymodel EX1202.5 11500KV
Size: 125mmx115mmx40mm (without propellers)
Weight: 64g (without batteries)
<iframe width="560" height="315" src="https://www.youtube.com/embed/Sc-rk_5tlX0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

HTTP rate limiting module for Caddy 2. Contribute to mholt/caddy-ratelimit development by creating an account on GitHub.

Contained are STEP files for 9x19mm, 10mm, and .357SIG, and their respective chamber negatives. I've seen a lot of snapcaps around, but their accuracy is dubious, and I never see chamber negatives to go with them. I built these off of the drawings contained in SAAMI Z299.3 &ndash; 2022 for the purposes of integration into CAD projects to predict tolerances and fitment. The chamber negatives are accurate, and so are the casings for the ammunition. The only thing that I took creative license on were the projectiles for the ammunition (as those can vary widely and are not specified), but I tried to best match conventional shapes, like 9x19mm 115gr FMJ. It is also worth noting that the ammunition data does not contain internal dimensions, only external. Internal spec for ammunition varies widely between manufacturers and is rarely indicated in public documentation. It also does not contain primer data for similar reasons, though I'd like to one day include it. The chamber negatives are used for headspacing. To use integrate them into your model, seat the base of the negative (the wide end) onto your boltface or breech, and center it with your barrel. Of course, headspacing is a fine art, so it may take some iteration to get things right. I suggest treading on the side of caution, rather than assuming your headspacing is correct on the first go. Feel free to message me if you have any questions.

Programmer, traveller, photo & videographer

Beercycle Mk2 - Let your bike hold your beerDont hold your drink while driving!&nbsp;&nbsp;This is the second iteration. You can find the first version here.&nbsp;In this version, the gyroscope rings do not need to be glued; they hold together solely through their shape. Additionally, the mounting ring is screwed onto the gyroscope, making it rotatable. This provides more options for attaching the beer holder.&nbsp;Bottle holder diameter: 68mmBottle holder height: 100mm&nbsp;Small German beer cans are 120mm high, making them easy to grab. And large cans, with a height of 168mm, won&#39;t roll over.&nbsp;Recommended material:- 1x Screw M5x25 (For cramp hinge)- 1x Hex socket screw M5x20 (For cramp connector)- 1x Screw M5x20 (To connect cramp and gyroscope)- 3x M5 Nut

Embed the contents of a directory in your binary

Sample commands to stream Pi webcam video to RTMP sink - ffmpeg-rtmp-streaming