Monthly Archives: January 2020

Water Switch Lamp Illuminates Current Flow

They always told you not to mix water and electricity. And while yes, that is good general advice regarding the two, you won’t rip a hole in the fabric of space-time should you go about it responsibly. Water will conduct electricity, so why not use it to switch on a …read more

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Posted in 0x20, 20 watt leds, acrylic, classic hacks, lamp, saline switch, salt water | Leave a comment

Companion Bots Definitely Are the Droids You’re Looking For

Companion robots are a breed that, heretofore, we’ve primarily seen in cinema. Free from the limits of real-world technology, they manage to be charismatic, cute, and capable in ways that endear them to audiences the world over. Jorvon Moss and Alex Glow decided that this charming technology shouldn’t just live …read more

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Posted in 2019 Hackaday Superconference, cons, Hackaday Supercon, Hackaday SuperConference, robot companions, robots hacks, talks | Leave a comment

The Internet of Football

While football in the United States means something totally different from what it means in the rest of the world, fans everywhere take it pretty seriously. This Sunday is the peak of U.S. football frenzy, the Super Bowl, and it is surprisingly high-tech. The NFL has invested in a lot …read more

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Posted in Featured, football, Interest, nextgen stats, NFL, Original Art, rfid, superbowl, wearable hacks, wireless hacks, zebra | Leave a comment

RemoteXY Simplifies Arduino Control

[Labpacks] wanted to build a robot car controlled by his phone. As a Hackaday reader, of course you probably can imagine building the car. Most could probably even write a phone application to do the control. But do you want to? In most cases, you are better off focusing on …read more

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Posted in Android Hacks, Arduino Hacks, ipod hacks, mobile phone, remotexy, smartphone | Leave a comment

This Is It For The Particle Mesh Network

The long-held dream of wireless network hackers everywhere is to dispense with centralised network infrastructure, and instead rely on a distributed network in which the clients perform the role of distribution and routing of traffic. These so-called mesh networks promise scalability and simplicity on paper, but are in practice never …read more

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Posted in mesh networking, news, particle, Particle Mesh, Particle Xenon, wireless hacks | Leave a comment

Poking Around the Wide World of Bluetooth

Bluetooth is a technology with a very interesting history. When it first came around in the late 1990s, it promised to replace the mess of wires that was tucked behind every desk of the day. Unfortunately, the capabilities of early Bluetooth didn’t live up to the hype, and it never …read more

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Posted in Arduino Nano 33 BLE, ble, bluetooth, Bluetooth Classic, bluetooth low energy, ESP32, Microcontrollers, wireless, wireless hacks | Leave a comment

Understand Linux htop Visually

If you want to know exactly what’s going on in your Linux system, some of you might reach for top. For the  connoisseur of system monitors, nothing less than htop will do. Not familiar with htop? [Ahsen Saeed] did a beautiful job of doing it graphically.

We’ve mentioned …read more

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Posted in htop, linux, linux hacks, top | Leave a comment

Retrotechtacular: Teasmade

We’re used to our domestic appliances being completely automated in 2020, but not so long ago they were much simpler affairs. Not everything required a human to run it though, an unexpected piece of electromechanical automation could be found in British bedrooms. This is the story of the Goblin Teasmade, …read more

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Posted in appliance, Hackaday Columns, home hacks, Interest, Retrotechtacular, teamaker, teardown, teasmade | Leave a comment

Tensors Explained

You can do a lot of electronics without ever touching a tensor, but there are some situations in which tensors are absolutely essential. The problem is that most math texts give you a very dry description that is difficult to internalize. That’s where [The Science Asylum] comes in. Their recent …read more

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Posted in math, mathematics, science, tensor | Leave a comment

Wire Loop And Amplifier Solve Audio Problem For The Hearing Impaired

Imagine being asked to provide sound reinforcement for a meeting that occurs in a large room, where anyone can be the speaker, and in a situation where microphones would hinder the flow of the meeting. Throw in a couple of attendees who have hearing disabilities, and you’ve got quite a …read more

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Posted in hearing aid, hearing impaired, inductive, loop, meeting, microphone, misc hacks, Quaker, Society of Friends, t-coil, telecoil | Leave a comment