How To Make An Electric Scooter Chain Sprocket With Nothing But Hand Tools

Sometimes, mechanical parts can be supremely expensive, or totally unavailable. In those cases, there’s just one option — make it yourself. It was this very situation in which I found myself. My electric scooter had been ever so slightly bested by a faster competitor, and I needed redemption. A gearing …read more

DNS-over-HTTPS Is The Wrong Partial Solution

Openness has been one of the defining characteristics of the Internet for as long as it has existed, with much of the traffic today still passed without any form of encryption. Most requests for HTML pages and associated content are in plain text, and the responses are returned in the …read more

This Week In Security: A Digital Café Américain, The Linux Bugs That Weren’t, The Great Nation, And More

A government is going after a human rights activists in Morocco. It sounds familiar, but I don’t think Humphrey Bogart is running the gin joint this time around.

Questionable Casablanca references aside, Amnesty International has reported another attack against human rights workers. In this case, a pair of Moroccan activists …read more

Worried About Bats In Your Belfry? A Tale Of Two Bat Detectors

As somebody who loves technology and wildlife and also needs to develop an old farmhouse, going down the bat detector rabbit hole was a journey hard to resist. Bats are ideal animals for hackers to monitor as they emit ultrasonic frequencies from their mouths and noses to communicate with each …read more

Worn Out EMMC Chips Are Crippling Older Teslas

It should probably go without saying that the main reason most people buy an electric vehicle (EV) is because they want to reduce or eliminate their usage of gasoline. Even if you aren’t terribly concerned about your ecological footprint, the fact of the matter is that electricity prices are so …read more

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Building A Laser Head With High Speed, High Resolution

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By Lewin Day | October 22, 2019

Typically, when it comes to scanning a laser, it’s done with galvos or a rotating mirror assembly. However, these methods can be slow and cumbersome, or restricted due to existing patents. [Rick] aimed to find an alternative solution with the Hexastorm project, using a rotating prism to build a high …read more
Grind Your Welds With Pride, If That’s The Way You Do It

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By Jenny List | October 22, 2019

To grind or not to grind? What a question! It all depends on what you’re really trying to show, and in the case of welded joints, I often want to prove the integrity of the weld.

Recently, I wrote a piece in which I talked about my cheap inverter welder …read more
Creepy Halloween Doll Might Make You Betsy Wetsy

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By Kristina Panos | October 22, 2019

If you want to terrify your neighborhood this Halloween, you might go for the old standbys like skeletons or zombies. But you don’t have to go gory to find glory. Consider the talking doll. Those things are creepy enough already, right? Well, [cabuu] says no, the doll should be animated …read more
Developing Guidelines For Sustainable Spaceflight

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By Tom Nardi | October 22, 2019

In the early days of spaceflight, when only the governments of the United States and the Soviet Union had the ability to put an object into orbit, even the most fanciful of futurists would have had a hard time believing that commercial entities would one day be launching sixty satellites …read more
Robot Joints Go Modular With This Actuator Project

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By Donald Papp | October 22, 2019

[John Lauer] has been hard at work re-thinking robot arms. His project to create modular, open source actuators that can be connected to one another to form an arm is inspiring, and boasts an impressively low parts cost as well. The actuators are each self-contained, with an ESP32 and a …read more
A Spectrum Analyzer For The Smart Response XE

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By Tom Nardi | October 22, 2019

Remember the Girl Tech IM-me? It was a hot-pink clearance rack toy that suddenly became one of the hottest commodities in the hacking world when it was discovered they could be used for all sorts of radio frequency shenanigans. Now they go for triple digits on eBay, if you can …read more
Vintage Transistor Radio Gets Internet Transplant

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By Lewin Day | October 21, 2019

The invention of the transistor revolutionized radio, allowing receivers to be made far more compact and portable than ever before. In the middle of the 20th century, the devices exploded in popularity, and pocket transistor radios took the market by storm. [MisterM] had fond memories of such times, and when …read more

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How To Make An Electric Scooter Chain Sprocket With Nothing But Hand Tools

DNS-over-HTTPS Is The Wrong Partial Solution

This Week In Security: A Digital Café Américain, The Linux Bugs That Weren’t, The Great Nation, And More

Worried About Bats In Your Belfry? A Tale Of Two Bat Detectors

Worn Out EMMC Chips Are Crippling Older Teslas

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Developing Guidelines For Sustainable Spaceflight

DNS-over-HTTPS Is The Wrong Partial Solution

Speakers Taking The Stage At Supercon Plus A Hint Of The Hacking To Come

Worn Out EMMC Chips Are Crippling Older Teslas

Pack Your Bags – Systemd Is Taking You To A New Home

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How To Make An Electric Scooter Chain Sprocket With Nothing But Hand Tools

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Hackaday Links: October 20, 2019

Maker Spirit Alive And Well At The Philly Maker Faire

Hackaday Podcast 040: 3D Printed Everything, Strength V Toughness, Blades Of Fiber, And What Can’t Coffee Do?

How To Make An Electric Scooter Chain Sprocket With Nothing But Hand Tools

DNS-over-HTTPS Is The Wrong Partial Solution

This Week In Security: A Digital Café Américain, The Linux Bugs That Weren’t, The Great Nation, And More

Worried About Bats In Your Belfry? A Tale Of Two Bat Detectors

Worn Out EMMC Chips Are Crippling Older Teslas

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