What’s On Your Bank Card? Hacker Tool Teaches All About NFC And RFID

The Flipper Zero is a multipurpose hacker tool that aims to make the world of hardware hacking more accessible with a slick design, wide array of capabilities, and a fantastic looking UI. They are …

3D Printed Rocket’s Features Are Out Of This World

We’re delighted to see the progress on [Foaly]’s 3D-printed Cortex 2 rocket, and the latest build log is full of beautiful pictures and design details. Not only is this rocket jam-packe…

An RF Remote Is No Match For A Logic Analyser!

The Neewer NL660-2.4 Video Keylight has a handy remote control, which for [Tom Clement] has a major flaw in that it can’t restore the light to the state it had during its last power-on. He&#8…

Making Web Pages With Word?

If you’ve ever examined the messy HTML that results from doing a Save As HTML from Microsoft Word, you can appreciate [Jim Yuill]’s motivation for his WordWebNav (WWN) project. [Jim] us…

Building An Archery Mech Suit To Skip Practice

According to legend, King Edward III once said: “If you want to train a longbowman, start with his grandfather.” Consistently making accurate hits with any bow, especially on moving targets, takes …

Who Needs Pin Headers?

[Martin] sent this query, along with the lead photo, into the tip line, and he makes a good point. Most development and evaluation boards have multiple rows of pin headers, often arriving loose in …

Open Source Ultrasonic Anemometer

Weather stations are a popular project for experimenting with various environmental sensors, and for wind speed and direction the choice is usually a simple cup anemometer and wind vane. For [Jianj…

Improved Technique For Resistive Divider Keypads

[Lauri Pirttiaho] from the [Swiss Knife of Electronics] channel explains how to simplify your resistive divider keypad design on Hackaday.io. The usual method involves building a resistive ladder t…

Disguising The PS5 With A Custom Wood And Carbon Fiber Enclosure

The PlayStation 5 has a very distinctive enclosure that some love and others hate. Its design certainly does not lend itself to lying on its side, even though this is a more practical orientation f…

3D Printed Joystick Using Spherical Flexure Joint

One of the many advancements brought about by 3D printing is the rapid development of compliant mechanisms and flexure joints. One such example is [jicerr]’s joystick, which uses a pair of sp…

A High Power Wood Rocket In 5 Days

Getting started with model rocketry is relatively cheap and easy, but as you move up in high power rocketry, there are a few hoops to jump through. To be able to buy rocket motors larger than H (16…

With A Big Enough Laser, The World Is Your Sensor

It’s difficult to tell with our dull human senses, but everything around us is vibrating. Sure it takes more energy to get big objects like bridges and houses humming compared to a telephone …

Rodriguez — IV Curve Tracer On The Cheap

In response to an online discussion on the Electrical Engineering Stack Exchange, [Joseph Eoff] decided to prove his point by slapping together a bare-bones IV curve tracer using an Arduino Nano an…

A Phased-Array Ultrasonic 3D Scanner From Scratch

Who wouldn’t want an autonomous drone to deliver cans of fizzy drink fresh from the fridge? [Alex Toussaint] did, and in thinking how such a machine might work he embarked on a path that even…

The Coffee Must Flow: Replacing A Spent Lithium Cell In A Coffee Machine

When [hacky] bought a used Douwe Egberts Gallery 200 all-in-one coffee maker, the machine was known to have a ’empty battery’. Being one of those fancy coffee makers that handle everyth…