Discrete LEDs Make a Micro Display

Few things excite a Hackaday staff member more than a glowing LED, so it should be no surprise that combining them together into a matrix really gets us going. Make that matrix tiny, addressable, and chainable and you know it’ll be a hit at the virtual water cooler. We’ve seen …read more

Continue reading Discrete LEDs Make a Micro Display

New Contest: Flexible PCBs

The now-humble PCB was revolutionary when it came along, and the whole ecosystem that evolved around it has been a game changer in electronic design. But the PCB is just so… flat. Planar. Two-dimensional. As useful as it is, it gets a little dull sometimes.

Here’s your chance to break …read more

Continue reading New Contest: Flexible PCBs

PCB Take on Stars, Moons, and Ringed Planets is Gold

Remember when PCBs were green and square? That’s the easy default, but most will agree that when you’re going to show off your boards instead of hiding them in a case, it’s worth extra effort to make them beautiful. We’re in a renaissance of circuit board design and the amount of effort being poured into great looking boards is incredible. The good news is that this project proves you don’t have to go nuts to achieve great results. This stars, moons, and planets badge looks superb using just two technical tricks: exposed (plated) copper and non-rectangular board outline.

Don’t take …read more

Continue reading PCB Take on Stars, Moons, and Ringed Planets is Gold

Friday Hack Chat: Everything PCB

It was not too long ago that all PCB design packages were proprietary. Getting PCBs made was expensive, and if you tried to do this over the Internet, the best way was to download a board house’s proprietary software, design your board in their software suite, and send your boards off to be made. A 5 cm square board would cost two hundred dollars. I know this to be true because I’ve said it before, and no one has corrected me.

For this week’s Hack Chat, we’re talking Everything PCB with OSH Park. OSH Park is the leading creators of …read more

Continue reading Friday Hack Chat: Everything PCB

These Small PCBs are Made for Model Rocketry

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

Continue reading These Small PCBs are Made for Model Rocketry

These Small PCBs are Made for Model Rocketry

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

Continue reading These Small PCBs are Made for Model Rocketry

Continuity Tester uses the ATtiny85’s Comparator

There’s an inside joke among cyclists – the number of bikes you need is “n+1”, where “n” is your current number of bikes. The same probably also applies to the number of tools and equipment a hacker needs on their workbench. Enough is never enough. Although [David Johnson-Davies] has a couple of multimeters lying around, he still felt the urge to build a stand-alone continuity tester and has posted details for a super-simple ATtiny85 based Continuity Tester on his blog. For a device this simple, he set himself some tall design goals. Using the ATtiny85 and a few SMD discretes, …read more

Continue reading Continuity Tester uses the ATtiny85’s Comparator

Hackaday Links: June 11, 2017

PCB art is getting better and better every year. This year, though, is knocking it out of the park. In March, [Andrew Sowa] turned me into money. More recently, [Trammell Hudson] has explored the layers of OSH Park soldermask and silk to create a masterpiece. Now, we’re moving up to full-blown art. [Blake Ramsdell] worked with OSH Park to create a full panel of art in gold, fiberglass, soldermask, and silkscreen. It’s 22×16 inches, and it’s fantastic.

There’s an independent Hackaday meetup going down in Hong Kong this week. The subject of the meetup will be vacuum systems for electron …read more

Continue reading Hackaday Links: June 11, 2017

How To Fix Your Broken Onion Omega2

A decade ago, while RISC architecture was busy changing everything and people were wearing Utilikilts without beards, hackers were doing something amazing. They repurposed off-the-shelf routers and turned them into what we would now call the Internet of Things. Need to set up a PBX? A Linksys router will do it. Want to drive a remote control car over the Internet? It’s your old friend, WRT54G.

Now that the Internet of Things is a thing, a few companies have realized people will buy bare bones router chipsets. It’s like an Arduino, or something, and it connects to the Internet. We’ll …read more

Continue reading How To Fix Your Broken Onion Omega2

A Completely Open Microcontroller

I don’t know about you, but the idea of an Arduino-class microprocessor board which uses completely open silicon is a pretty attractive prospect to us. That’s exactly [onchipUIS]’s stated goal. They’re part of a research group at the Universidad Industrial de Santander and have designed and taped out a RISCV implementation with Cortex M0-like characteristics.

The RISCV project has developed an open ISA (instruction set architecture) for modern 32-bit CPUs. More than 40 research groups and companies have now jumped on the project and are putting implementations together.

[onchipUIS] is one such project. And their twitter timeline shows the rapid …read more

Continue reading A Completely Open Microcontroller