Hackaday Links: October 17, 2026

While Hackaday doesn’t maintain a crime blotter, we couldn’t help but start this week’s post off with a bit of civil disobedience — a retired professor from the University of …read more

Discovering SDRs Everywhere

To quote commenter [douyarou], “It’s like our little version of a Precambrian explosion”. A bunch of hackers have discovered, independently and building on each other’s work, software-defined radio (SDR) capabilities …read more

Hackaday Podcast Episode 391: Tuned In To ESP32 SDR, New Old Pagers, And Bugs On Mars

Hackaday Editors Elliot Williams and Tom Nardi start this episode off with a discussion about Philadelphia’s budding hacker conference and the imminent retirement of the EZ80. After considering the parallels …read more

This Week In Security: Critical DNS Keys Rotated, Hacking Freezers Isn’t Cool, OpenAI Spies On Itself, And Advanced Hardware Wallet Hacks

Critical Internet keys changed this week. Did you notice? The keys behind DNSSEC, the system for cryptographically validating DNS responses, rolled over on October 11 2026. This is the second …read more

2026 Hackaday Supercon: Workshops Are Open!

Supercon is Hackaday’s annual gathering, and you absolutely need to be there. Today, we’re pleased to announce our lineup of workshops, and it’s more than we’ve ever offered, thanks to …read more

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Reading QR Codes By Hand

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By Navarre Bartz | October 21, 2026

QR codes can be a handy way to send a link or contact details without all that tedious mucking about with typing in a link, but they aren’t very useful …read more
Making A Five-Segment Display With Platinum-Titanium Cathodes

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By Maya Posch | October 21, 2026

Before the advent of effective semiconductor LEDs many display types existed to display things like numbers and other characters. The Nixie tube is a well-known one, along with VFDs and …read more
Every Type Of Current Sensor Explained

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By Maya Posch | October 21, 2026

Measuring electric currents is an essential element of many electrical systems, but doing so in a way that is as nonintrusive as possible is not an easy problem to solve. …read more
Sega Genesis Controllers On The Philips CD-i

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By Zoe Skyforest | October 21, 2026

The Philips CD-i was not popular upon its launch in 1991, and is barely acknowledged today. In the opinion of [MattKC], it had a particularly poor selection of controllers, too, …read more
Knitting Yarn And Filament With FilaLoom

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By Ian Bos | October 21, 2026

We don’t generally think of 3D printing and knitting in the same sentence. One uses threads and fine motor control, while the other requires great knowledge of pressing buttons and …read more
Building A Simple Internet Radio

23 Comments
By Zoe Skyforest | October 21, 2026

Broadcast radio isn’t as popular as it once was, its popularity suffering in turn due to technologies like MP3 players and music streaming services. If you don’t fancy either of …read more
The Age Of Altair

11 Comments
By Al Williams | October 21, 2026

I recently got the Amazon Christmas toy book in the mail, and it is definitely the modern version of the Sears Christmas Wish Book for last century’s youth. Or at …read more

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Hackaday Links: October 17, 2026

Discovering SDRs Everywhere

Hackaday Podcast Episode 391: Tuned In To ESP32 SDR, New Old Pagers, And Bugs On Mars

This Week In Security: Critical DNS Keys Rotated, Hacking Freezers Isn’t Cool, OpenAI Spies On Itself, And Advanced Hardware Wallet Hacks

2026 Hackaday Supercon: Workshops Are Open!

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The Age Of Altair

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Hackaday Links: October 17, 2026

Discovering SDRs Everywhere

Hackaday Podcast Episode 391: Tuned In To ESP32 SDR, New Old Pagers, And Bugs On Mars

This Week In Security: Critical DNS Keys Rotated, Hacking Freezers Isn’t Cool, OpenAI Spies On Itself, And Advanced Hardware Wallet Hacks

2026 Hackaday Supercon: Workshops Are Open!

Hackaday Links: October 17, 2026

Discovering SDRs Everywhere

Hackaday Podcast Episode 391: Tuned In To ESP32 SDR, New Old Pagers, And Bugs On Mars

This Week In Security: Critical DNS Keys Rotated, Hacking Freezers Isn’t Cool, OpenAI Spies On Itself, And Advanced Hardware Wallet Hacks

2026 Hackaday Supercon: Workshops Are Open!

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