The ThinkPad 701 is an iconic laptop series from the mid-90s and is still highly sought after today because of its famous butterfly keybaord. The laptop itself is tiny even …read more (https://hackaday.com/2023/07/15/reverse-engineering-a-classic-thinkpad-battery/)

Hackaday Prize 2023: Pi Pico Measures Volts, Amps and Watts
https://hackaday.com/2023/07/16/hackaday-prize-2023-pi-pico-measures-volts-amps-and-watts/

Measuring a voltage is pretty easy: just place your multimeter’s probes across the relevant pins and read the value. Probing currents is a bit trickier, since you need to open …read more (https://hackaday.com/2023/07/16/hackaday-prize-2023-pi-pico-measures-volts-amps-and-watts/)

Brute Forcing a Mobile’s PIN Over USB With a $3 Board
https://hackaday.com/2023/07/16/brute-forcing-a-mobiles-pin-over-usb-with-a-3-board/

Mobile PINs are a lot like passwords in that there are a number of very common ones, and [Mobile Hacker] has a clever proof of concept that uses a tiny …read more (https://hackaday.com/2023/07/16/brute-forcing-a-mobiles-pin-over-usb-with-a-3-board/)

A Current Sensing Coil That’s Open Ended
https://hackaday.com/2023/07/16/a-current-sensing-coil-thats-open-ended/

One of the joys of writing for Hackaday comes in learning new things which even after a long engineering background haven’t yet come your way. So it is with the …read more (https://hackaday.com/2023/07/16/a-current-sensing-coil-thats-open-ended/)

Sleuth Untrusted USB Communication with USBValve
https://hackaday.com/2023/07/16/sleuth-untrusted-usb-communication-with-usbvalve/

USB devices are now ubiquitous and, from an information security standpoint, this is a terrifying prospect as malicious software can potentially be injected into a system by plugging in a …read more (https://hackaday.com/2023/07/16/sleuth-untrusted-usb-communication-with-usbvalve/)

Halbach Array Makes Magnets Strong, Weak
https://hackaday.com/2023/07/16/halbach-array-makes-magents-strong-weak/

If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a …read more (https://hackaday.com/2023/07/16/halbach-array-makes-magents-strong-weak/)

Hackaday Links: July 16, 2023
https://hackaday.com/2023/07/16/hackaday-links-july-16-2023/

Last week, we noted an attempt to fix a hardware problem with software, which backfired pretty dramatically for Ford when they tried to counter the tendency for driveshafts to fall …read more (https://hackaday.com/2023/07/16/hackaday-links-july-16-2023/)

Improving Ocean Power with Static Electricity
https://hackaday.com/2023/07/16/improving-ocean-power-with-static-electricity/