Over on his YouTube channel our hacker [Jerry Walker] repairs a Tektronix 577 curve tracer. A curve tracer is a piece of equipment which plots I-V (current vs voltage) curves, …read more (https://hackaday.com/2025/09/04/repairing-a-tektronix-577-curve-tracer/)

TFINER is an Atompunk Solar Sail Lookalike
https://hackaday.com/2025/09/04/tfiner-is-an-atompunk-solar-sail-lookalike/

It’s not every day we hear of a new space propulsion method. Even rarer to hear of one that actually seems halfway practical. Yet that’s what we have in the …read more (https://hackaday.com/2025/09/04/tfiner-is-an-atompunk-solar-sail-lookalike/)

Powering a Submarine with Rubber Bands
https://hackaday.com/2025/09/04/powering-a-submarine-with-rubber-bands/

A look underneath the water’s surface can be fun and informative! However, making a device to go under the surface poses challenges with communication and water proofing. That’s what this …read more (https://hackaday.com/2025/09/04/powering-a-submarine-with-rubber-bands/)

Capture and Plot Serial Data in the Browser
https://hackaday.com/2025/09/05/capture-and-plot-serial-data-in-the-browser/

If you’re working with a microcontroller that reads a sensor, the chances are that at some point you’re faced with a serial port passing out continuous readings. The workflow of …read more (https://hackaday.com/2025/09/05/capture-and-plot-serial-data-in-the-browser/)

Heart Rate Monitoring via WiFi
https://hackaday.com/2025/09/05/heart-rate-monitoring-via-wifi/

Before you decide to click away, thinking we’re talking about some heart rate monitor that connects to a display using WiFi, wait! Pulse-Fi is a system that monitors heart rate …read more (https://hackaday.com/2025/09/05/heart-rate-monitoring-via-wifi/)

This Week in Security: DNS Oops, Novel C2s, and the Scam Becomes Real
https://hackaday.com/2025/09/05/this-week-in-security-dns-oops-novel-c2s-and-the-scam-becomes-real/

Something rather significant happened on the Internet back in May, and it seems that someone only noticed it on September 3rd. [Youfu Zhang] dropped a note on one of the …read more (https://hackaday.com/2025/09/05/this-week-in-security-dns-oops-novel-c2s-and-the-scam-becomes-real/)

Estes Wants You to 3D Print Their New Model Rocket
https://hackaday.com/2025/09/05/estes-wants-you-to-3d-print-their-new-model-rocket/

The Estes line of flying model rockets have inspired an untold number of children and adults alike, thanks in part to their simplicity. From the design and construction of the …read more (https://hackaday.com/2025/09/05/estes-wants-you-to-3d-print-their-new-model-rocket/)