Using an e-Book Reader as a Secondary Display <img width="800" height="450" src=" alt=""/>[Alireza Alavi] wanted to use an e-ink tablet as a Linux monitor. Why? We don’t need to ask. You can see the result of connecting an Onyx BOOX Air 2

Hackaday

Using An E-Book Reader As A Secondary Display

[Alireza Alavi] wanted to use an e-ink tablet as a Linux monitor. Why? We don&#8217;t need to ask. You can see the result of connecting an Onyx BOO...

Hackaday

Using An E-Book Reader As A Secondary Display

[Alireza Alavi] wanted to use an e-ink tablet as a Linux monitor. Why? We don&#8217;t need to ask. You can see the result of connecting an Onyx BOO...

SigCore UC: An Open-Source Universal I/O Controller for the Raspberry Pi <img width="800" height="450" src=" alt="A photo of the SigCoreUC"/>Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, Analog I/O, and Modbus for the Raspberry Pi.

Hackaday

SigCore UC: An Open-Source Universal I/O Controller For The Raspberry Pi

Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, ...

Hackaday

SigCore UC: An Open-Source Universal I/O Controller For The Raspberry Pi

Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, ...

An HO Model Power Bogie For Not A Lot <img width="800" height="450" src=" alt=""/>For people who build their own model trains there are a range of manufacturers from whom a power bogie containing the motor and drive can be sourced. But as [Le

Hackaday

An HO Model Power Bogie For Not A Lot

For people who build their own model trains there are a range of manufacturers from whom a power bogie containing the motor and drive can be source...

Hackaday

An HO Model Power Bogie For Not A Lot

For people who build their own model trains there are a range of manufacturers from whom a power bogie containing the motor and drive can be source...

High-Speed Pocket Hot Dog Cooker <img width="800" height="450" src=" alt=""/>Few of us complain that hot dogs take too long to cook, because we buy them from a stand. Still, if you do have to make your own dog, it

Hackaday

High-Speed Pocket Hot Dog Cooker

Few of us complain that hot dogs take too long to cook, because we buy them from a stand. Still, if you do have to make your own dog, it can be a f...

Hackaday

High-Speed Pocket Hot Dog Cooker

Few of us complain that hot dogs take too long to cook, because we buy them from a stand. Still, if you do have to make your own dog, it can be a f...

Christmas Ornament Has Hidden Compartment, Clever Design <img width="800" height="450" src=" alt=""/>If you need something clever for a gift, consider this two-part 3D-printed Christmas ornament that has a small secret compartment. But there’s a catch: the print is a challenging one.

Hackaday

Christmas Ornament Has Hidden Compartment, Clever Design

If you need something clever for a gift, consider this two-part 3D-printed Christmas ornament that has a small secret compartment. But there&#8217;...

Hackaday

Christmas Ornament Has Hidden Compartment, Clever Design

If you need something clever for a gift, consider this two-part 3D-printed Christmas ornament that has a small secret compartment. But there&#8217;...

Calibrating a Printer with Computer Vision and Precise Timing <img width="800" height="450" src=" alt="A grey and blue coreXY 3D printer is shown, with a small camera in place of its hotend. On the print bed is a ChArUco pattern, a grid of square tiles containing alternating black fill and printed patterns."/>[Dennis] of [Made by Dennis] has been building a Voron 0 for fun and education, and since this apparently wasn’t enough of a challenge, decided to add a number of

Hackaday

Calibrating A Printer With Computer Vision And Precise Timing

[Dennis] of [Made by Dennis] has been building a Voron 0 for fun and education, and since this apparently wasn’t enough of a challenge, decided t...

Hackaday

Calibrating A Printer With Computer Vision And Precise Timing

[Dennis] of [Made by Dennis] has been building a Voron 0 for fun and education, and since this apparently wasn’t enough of a challenge, decided t...

Ask Hackaday: What Goes Into A Legible Font, And Why Does It Matter? <img width="800" height="461" src=" alt=""/>There’s an interesting cultural observation to be made as a writer based in Europe, that we like our sans-serif fonts, while our American friends seem to prefer a font with

Hackaday

Ask Hackaday: What Goes Into A Legible Font, And Why Does It Matter?

There&#8217;s an interesting cultural observation to be made as a writer based in Europe, that we like our sans-serif fonts, while our American fri...

Hackaday

Ask Hackaday: What Goes Into A Legible Font, And Why Does It Matter?

There&#8217;s an interesting cultural observation to be made as a writer based in Europe, that we like our sans-serif fonts, while our American fri...

The Music of the Sea <img width="800" height="557" src=" alt=""/>For how crucial whales have been for humanity, from their harvest for meat and oil to their future use of saving the world from a space probe, humans knew very

Hackaday

The Music Of The Sea

For how crucial whales have been for humanity, from their harvest for meat and oil to their future use of saving the world from a space probe, huma...

Hackaday

The Music Of The Sea

For how crucial whales have been for humanity, from their harvest for meat and oil to their future use of saving the world from a space probe, huma...

Internet-Connected Consoles Are Retro Now, And That Means Problems <img width="800" height="484" src=" alt=""/>A long time ago, there was a big difference between PC and console gaming. The former often came with headaches. You’d fight with drivers, struggle with crashes, and grow ever

Hackaday

Internet-Connected Consoles Are Retro Now, And That Means Problems

A long time ago, there was a big difference between PC and console gaming. The former often came with headaches. You&#8217;d fight with drivers, st...

Hackaday

Internet-Connected Consoles Are Retro Now, And That Means Problems

A long time ago, there was a big difference between PC and console gaming. The former often came with headaches. You&#8217;d fight with drivers, st...

How To Build Good Contact Mics <img width="800" height="450" src=" alt=""/>We’re most familiar with sound as vibrations that travel through the atmosphere around us. However, sound can also travel through objects, too! If you want to pick it up, you’d

Hackaday

How To Build Good Contact Mics

We&#8217;re most familiar with sound as vibrations that travel through the atmosphere around us. However, sound can also travel through objects, to...

Hackaday

How To Build Good Contact Mics

We&#8217;re most familiar with sound as vibrations that travel through the atmosphere around us. However, sound can also travel through objects, to...

Lichtenberg Lightning in a Bottle, Thanks To The Magic of Particle Accelerators <img width="800" height="449" src=" alt=""/>You’ve probably seen Lichtenberg figures before, those lightning-like traces left by high-voltage discharge. The safe way to create them is using an electron beam to embed charge inside an acrylic

Hackaday

Lichtenberg Lightning In A Bottle, Thanks To The Magic Of Particle Accelerators

You&#8217;ve probably seen Lichtenberg figures before, those lightning-like traces left by high-voltage discharge. The safe way to create them is u...

Hackaday

Lichtenberg Lightning In A Bottle, Thanks To The Magic Of Particle Accelerators

You&#8217;ve probably seen Lichtenberg figures before, those lightning-like traces left by high-voltage discharge. The safe way to create them is u...

Origami on another Level with 3D Printing <img width="800" height="450" src=" alt="3D printed Origami mechanism"/>Origami has become known as a miracle technique for designers. Elegant compliant mechanisms can leverage the material properties of a single geometry in ways that are sometimes stronger than those

Hackaday

Origami On Another Level With 3D Printing

Origami has become known as a miracle technique for designers. Elegant compliant mechanisms can leverage the material properties of a single geomet...

Hackaday

Origami On Another Level With 3D Printing

Origami has become known as a miracle technique for designers. Elegant compliant mechanisms can leverage the material properties of a single geomet...

The Unusual Pi Boot Process Explained <img width="800" height="450" src=" alt=""/>If you’ve ever experimented with a microprocessor at the bare metal level, you’ll know that when it starts up, it will look at its program memory for something to do.

Hackaday

The Unusual Pi Boot Process Explained

If you&#8217;ve ever experimented with a microprocessor at the bare metal level, you&#8217;ll know that when it starts up, it will look at its prog...

Hackaday

The Unusual Pi Boot Process Explained

If you&#8217;ve ever experimented with a microprocessor at the bare metal level, you&#8217;ll know that when it starts up, it will look at its prog...

Hackaday Links: December 21, 2025 <img width="800" height="430" src=" alt="Hackaday Links Column Banner"/>It’s amazing how fragile our digital lives can be, and how quickly they can fall to pieces. Case in point: the digital dilemma that Paris Buttfield-Addison found himself in last

Hackaday

Hackaday Links: December 21, 2025

It&#8217;s amazing how fragile our digital lives can be, and how quickly they can fall to pieces. Case in point: the digital dilemma that Paris But...

Hackaday

Hackaday Links: December 21, 2025

It&#8217;s amazing how fragile our digital lives can be, and how quickly they can fall to pieces. Case in point: the digital dilemma that Paris But...

Pause Print, Add Hardware, and Enjoy Strength <img width="800" height="251" src=" alt=""/>3D Printing is great, but it is pretty much the worst way to make any given part– except that every other technique you could use to make that part is

Hackaday

Pause Print, Add Hardware, And Enjoy Strength

3D Printing is great, but it is pretty much the worst way to make any given part&#8211; except that every other technique you could use to make tha...

Hackaday

Pause Print, Add Hardware, And Enjoy Strength

3D Printing is great, but it is pretty much the worst way to make any given part&#8211; except that every other technique you could use to make tha...

Why Chopped Carbon Fiber in FDM Prints is a Contaminant <img width="800" height="447" src=" alt=""/>A lot of claims have been made about the purported benefits of adding chopped carbon fiber to FDM filaments, but how many of these claims are actually true? In the

Hackaday

Why Chopped Carbon Fiber In FDM Prints Is A Contaminant

A lot of claims have been made about the purported benefits of adding chopped carbon fiber to FDM filaments, but how many of these claims are actua...

Hackaday

Why Chopped Carbon Fiber In FDM Prints Is A Contaminant

A lot of claims have been made about the purported benefits of adding chopped carbon fiber to FDM filaments, but how many of these claims are actua...

A Compact, Browser-Based ESP32 Oscilloscope <img width="800" height="450" src=" alt="A browser window is shown, in which a web page is displaying a green trace of a square wave."/>An oscilloscope is usually the most sensitive, and arguably most versatile, tool on a hacker’s workbench, often taking billions of samples per second to produce an accurate and informative representation

Hackaday

A Compact, Browser-Based ESP32 Oscilloscope

An oscilloscope is usually the most sensitive, and arguably most versatile, tool on a hacker’s workbench, often taking billions of samples per se...

Hackaday

A Compact, Browser-Based ESP32 Oscilloscope

An oscilloscope is usually the most sensitive, and arguably most versatile, tool on a hacker’s workbench, often taking billions of samples per se...

Shoot Instax Film In A Polaroid Camera With The Aid Of Tape <img width="800" height="450" src=" alt=""/>Polaroid cameras have been very popular for a very long time and are especially hot gifts this year. Fresh film is easy to find but relatively expensive. In contrast, Fuji’s

Hackaday

Shoot Instax Film In A Polaroid Camera With The Aid Of Tape

Polaroid cameras have been very popular for a very long time and are especially hot gifts this year. Fresh film is easy to find but relatively expe...

Hackaday

Shoot Instax Film In A Polaroid Camera With The Aid Of Tape

Polaroid cameras have been very popular for a very long time and are especially hot gifts this year. Fresh film is easy to find but relatively expe...

A Heavily Modified Rivian Attempts the Cannonball Run <img width="800" height="450" src=" alt=""/>There are few things more American than driving a car really fast in a straight line. Occasionally, the cars will make a few left turns, but otherwise, this is the

Hackaday

A Heavily Modified Rivian Attempts The Cannonball Run

There are few things more American than driving a car really fast in a straight line. Occasionally, the cars will make a few left turns, but otherw...

Hackaday

A Heavily Modified Rivian Attempts The Cannonball Run

There are few things more American than driving a car really fast in a straight line. Occasionally, the cars will make a few left turns, but otherw...

A Tiny Reflecting Telescope For Portable Astronomy <img width="800" height="450" src=" alt=""/>For most of us who are not astronomers, the image that comes to mind when describing a reflecting telescope is of a huge instrument in its own domed-roof building on

Hackaday

A Tiny Reflecting Telescope For Portable Astronomy

For most of us who are not astronomers, the image that comes to mind when describing a reflecting telescope is of a huge instrument in its own dome...

Hackaday

A Tiny Reflecting Telescope For Portable Astronomy

For most of us who are not astronomers, the image that comes to mind when describing a reflecting telescope is of a huge instrument in its own dome...