Graphing Calculator Gets USB-C Upgrade
https://hackaday.com/2026/01/07/graphing-calculator-gets-usb-c-upgrade/

Unlike Texas Instruments, whose graphing calculators have famously not made technological improvements in decades despite keeping the same price tag, HP has made a few more modern graphing calculators in …read more (https://hackaday.com/2026/01/07/graphing-calculator-gets-usb-c-upgrade/)

DIY Grid Dip Meter Teardown
https://hackaday.com/2026/01/07/diy-grid-dip-meter-teardown/

You don’t see them much anymore, but there was a time when any hobbyist who dealt with RF probably had a grid dip meter. The idea was to have an …read more (https://hackaday.com/2026/01/07/diy-grid-dip-meter-teardown/)

Co-Extrusion Carbon Fiber FDM Filament Investigated
https://hackaday.com/2026/01/07/co-extrusion-carbon-fiber-fdm-filament-investigated/

After previously putting carbon fiber-reinforced PLA filament under the (electron) microscope, the [I built a thing] bloke is back with a new video involving PLA-CF, this time involving co-extrusion rather …read more (https://hackaday.com/2026/01/07/co-extrusion-carbon-fiber-fdm-filament-investigated/)

The Unreasonable Effectiveness of the Fourier Transform
https://hackaday.com/2026/01/07/the-unreasonable-effectiveness-of-the-fourier-transform/

A talk, The Unreasonable Effectiveness of the Fourier Transform, was presented by [Joshua Wise] at Teardown 2025 in June last year. Click-through for the notes or check out the video …read more (https://hackaday.com/2026/01/07/the-unreasonable-effectiveness-of-the-fourier-transform/)

The Issue With Wii U Gamepads and How to Clone Them
https://hackaday.com/2026/01/08/the-issue-with-wii-u-gamepads-and-how-to-clone-them/

How hard would it be to clone the Wii U gamepad, the quirky controller with its unique embedded screen? This is the question that [MattKC] faced as he noticed the …read more (https://hackaday.com/2026/01/08/the-issue-with-wii-u-gamepads-and-how-to-clone-them/)

Drive 1024×600 Pixels via I2C with an ATtiny85
https://hackaday.com/2026/01/08/drive-1024x600-pixels-via-i2c-with-an-attiny85/

If you need to drive a big screen for a project, it’s fair to say your first thought isn’t going to be to use the ATtiny85. With just 512 bytes …read more (https://hackaday.com/2026/01/08/drive-1024x600-pixels-via-i2c-with-an-attiny85/)

The Time Clock Has Stood the Test of Time
https://hackaday.com/2026/01/08/the-time-clock-has-stood-the-test-of-time/

No matter the item on my list of childhood occupational dreams, one constant ran throughout: I saw myself using an old-fashioned punch clock with the longish time cards and everything. …read more (https://hackaday.com/2026/01/08/the-time-clock-has-stood-the-test-of-time/)