These Small PCBs are Made for Model Rocketry — Hackaday

Model rocketry hobbyists are familiar with the need to roll their own solutions when putting high-tech features into rockets, and a desire to include a microcontroller in a rocket while still keeping things flexible and modular is what led [concretedog] to design a system using 22 mm diameter stackable PCBs designed to easily fit inside rocket bodies. The system uses a couple of 2 mm threaded rods for robust mounting and provides an ATTiny85 microcontroller, power control, and an optional small prototyping area. Making self-contained modular sleds that fit easily into rocket bodies (or any tube with a roughly one-inch …read more

via These Small PCBs are Made for Model Rocketry — Hackaday

Hack Excel for 3D Rendering — Hackaday

[C Bel] teaches Excel and he has a problem. Most of us — especially us Hackaday types — immediately write a VBA (Visual Basic for Applications) macro to do tough things in Excel. Not only is this difficult for non-technical users, but it also isn’t as efficient, according to [C Bel]. To demonstrate that VBA macros are not always needed, he wrote a 3D game engine using nothing but Excel formulae. He did have to resort to VBA to get user input and in a very few cases to improve the performance of large algorithms. You can see his result …read more

via Hack Excel for 3D Rendering — Hackaday

Flexible QaudCopter Is Nearly Indestructible

We’ve all crashed quadcopters. It’s almost inevitable. Everything is going along fine and dandy ’till mother nature opens her big mouth a blows a nasty gust of wind right at you, pushing your quad into the side of a wall. A wall that happens to be composed of a material that is quite a bit…

via Flexible QaudCopter Is Nearly Indestructible — Hackaday

$10 Raspberry Pi Zero W Adds WiFi and Bluetooth

The Raspberry Pi was born on February 29th which means we’re only three years away from its second birthday, and a new hardware release from the Pi Foundation is becoming somewhat of a tradition. This year is no different: a new Raspberry Pi has been announced. The Raspberry Pi Zero W is the latest iteration of…

via $10 Raspberry Pi Zero W Adds WiFi and Bluetooth — Hackaday

Taking A Robot For A Drive

Instructables user [Roboro] had a Mad Catz Xbox steering wheel controller he hasn’t had much use for of late, so he decided to hack and use it as a controller for a robot instead. Conceivably, you could use any RC car, but [Roboro] is reusing one he used for a robot sumo competition a few…

via Taking A Robot For A Drive — Hackaday

Octosonar is 8X Better than Monosonar

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay are shipping these things in ten-packs, why would you stop at mounting just one or two on your ‘bot?…

via Octosonar is 8X Better than Monosonar — Hackaday

50 Bytes of Code That Took 4 GB to Compile

50 Bytes of Code That Took 4 GB to Compile http://ift.tt/1izy1o7 Submitted February 10, 2017 at 08:37PM by dotnetnews via reddit http://ift.tt/2l0RClZ

via 50 Bytes of Code That Took 4 GB to Compile — Scapbi’s Weblog