Author Archives: Fernando Gomes

Magnets Make Prototyping E-Textiles a Snap

How do you prototype e-textiles? Any way you can that doesn’t drive you insane or waste precious conductive thread. We can’t imagine an easier way to breadboard wearables than this appropriately-named ThreadBoard.

If you’ve never played around with e-textiles, they can be quite fiddly to prototype. Of course, copper wires …read more

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Posted in conductive thread, f'n magnets, how-to, magnets, prototyping, rapid prototyping, wearable hacks, Wearables | Leave a comment

Be Wary Of Radioactive Bracelets And Similar

Before you start cutting up that ‘negative ion’ health bracelet or personal massager, be aware that these are highly likely to contain thorium oxide or similar radioactive powder, as this research video by [Justin Atkin] (also embedded after the break) over at The Thought Emporium YouTube channel shows. Even ignoring …read more

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Posted in negative ions, news, PSA, science, thorium oxide | Leave a comment

OpenChronograph Lets You Roll Your Own Smart Watch

At first, smartwatches were like little tiny tablets or phones that you wore on your wrist. More recently though we have noticed more “hybrid” smartwatches, that look like a regular watch, but that use their hands to communicate data. For example you might hear a text message come in and …read more

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Posted in Android Hacks, clock hacks, fossil, openchronograph, skagen, smartwatch | Leave a comment

LoRa Mesh Network with Off-the-Shelf Hardware

An ideal application for mesh networking is off-grid communication; when there’s no cellular reception and WiFi won’t reach, wide-area technologies like LoRa can be used to create ad hoc wireless networks. Whether you’re enjoying the outdoors with friends or conducting a rescue operation, a cheap and small gadget that will …read more

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Posted in emergency communications, ESP32, LoRa, mesh network, rescue communications, signal, software hacks, wireless hacks | Leave a comment

Developing Retro Games For Conference Badges With Kate Morris

PCB badges have exploded in popularity in recent years. Starting out as a fun token of entry to a conference, they’re now being developed by all manner of independent groups, with DEFCON serving as the heart of the #badgelife movement. After DEFCON 26, Kate Morris and associates decided to undertake …read more

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Posted in 2019 Hackaday Superconference, badge, badgelife, conference badge, cons, defcon, Hackaday Supercon, lunar lander | Leave a comment

Gravity-Defying Water Droplet Fountain Gets An Upgrade

When we last saw [isaac879]’s levitating RGB time fountain, it was made of wood which meant that it would absorb water and didn’t really show off the effect very well. His new version solves this problem with an acrylic case, new PCB and an updated circuit.

Like the original, this …read more

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Posted in arduino, ATTiny 85, led hacks, levitating, misc hacks, RGB LEDs, strobe light, time fountain | Leave a comment

OpenAstroTracker Turns Your DSLR Into An Astronomy Instrument

If you want to take beautiful night sky pictures with your DSLR and you live between 15 degrees and 55 degrees north latitude you might want to check out OpenAstroTracker. If you have a 3D printer it will probably take about 60 hours of printing, but you’ll wind up with …read more

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Posted in 3d Printer hacks, Arduino Hacks, astronomy, digital cameras hacks, star tracker, star tracking | Leave a comment

Self-Playing Kalimba V2 Thanks to Readers Like You

Would you like to know the great thing about this community we have here? All the spitballing that goes on every day in the comments, the IO chat rooms, and in the discussion threads of thousands of projects. One of our favorite things about the Hackaday universe is that we …read more

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Posted in arduino, Arduino Hacks, kalimba, musical hacks, rack and pinion, servo | Leave a comment

Levitating Starship Model Comes In For a Landing

If everything goes according to plan, Elon Musk says the first generation of SpaceX’s massive Starship will make an orbital flight before the end of 2020. That’s a pretty bold claim, but when you’ve made landing rockets on their tails as in the old science fiction pulp magazines seem routine, …read more

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Posted in 3d printed, arduino, Arduino Hacks, led hacks, Magnetic levitation, RGB LED, space, SpaceX, starship | Leave a comment

LoRa Tutorials For The DIY Masses

LoRa is the go-to tech for low power, long range wireless sensor networks. Designing with off-the-shelf modules can be a boon or a bane depending on the documentation and support. Luckily, [Renzo] has prepared a set of tutorials to get you started.
In his seven part series of write-ups, [Renzo]

…read more

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Posted in arduino, home hacks, LoRa, LoRaWAN, misc hacks, Wemos d1, wireless hacks | Leave a comment