Pianos use little hammers striking taut strings to make tones. The Mellotron used lots of individual tape mechanisms. Meanwhile, the Trans-Harmonium from [Emily Francisco] uses an altogether more curious method …read more (https://hackaday.com/2023/12/13/the-trans-harmonium-is-a-strange-kind-of-radio-musical-instrument/)

PCIe For Hackers: External PCIe And OCuLink
https://hackaday.com/2023/12/13/pcie-for-hackers-external-pcie-and-oculink/

We’ve seen a lot of PCIe hacks on Hackaday, and a fair few of them boil down to hackers pulling PCIe somewhere it wasn’t meant to be. Today, we routinely …read more (https://hackaday.com/2023/12/13/pcie-for-hackers-external-pcie-and-oculink/)

Public Power, WiFi, and Shelter
https://hackaday.com/2023/12/13/public-power-wifi-and-shelter/

In the US, we’re starting to see some pushback against hostile architecture, and in this vein, [benhobby] built a swanky public power and Wi-Fi access point. This beautiful piece of …read more (https://hackaday.com/2023/12/13/public-power-wifi-and-shelter/)

5Ghoul: The 14 Shambling 5G Flaws Used For Disruptive Attacks On Smartphones
https://hackaday.com/2023/12/13/5ghoul-the-14-shambling-5g-flaws-used-for-disruptive-attacks-on-smartphones/

A team of researchers from the ASSET Research Group in Singapore have published the details of a collection of vulnerabilities in the fifth generation mobile communication system (5G) used with …read more (https://hackaday.com/2023/12/13/5ghoul-the-14-shambling-5g-flaws-used-for-disruptive-attacks-on-smartphones/)

Bluetooth As Proxy for Occupancy
https://hackaday.com/2023/12/13/bluetooth-as-proxy-for-occupancy/

During [Matt]’s first year of college, he found in a roundabout way that he could avoid crowds in the dining hall by accessing publicly available occupancy data that the dining …read more (https://hackaday.com/2023/12/13/bluetooth-as-proxy-for-occupancy/)

The Geometry of Transistors
https://hackaday.com/2023/12/13/the-geometry-of-transistors/

Building things in a lab is easy, at least when compared to scaling up for mass production. That’s why there are so many articles about fusion being right around the …read more (https://hackaday.com/2023/12/13/the-geometry-of-transistors/)

Porting CP/M to a Z80 Thing
https://hackaday.com/2023/12/13/porting-cp-m-to-a-z80-thing/

It is hard to describe the Brother SuperPowerNote. It looks like a big old Z80-based laptop, but it says it is a notebook. The label on it says (with lots …read more (https://hackaday.com/2023/12/13/porting-cp-m-to-a-z80-thing/)