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Hardware & Electronics

The most popular blog posts about hardware & electronics on Hacker News. 474 posts.

2023
13

Hacking my “smart” toothbrush

After buying a new Philips Sonicare toothbrush I was surprised to see that it reacts to the insertion of a brush head by blinking an LED. A quick online search reveals that the head communicates with the toothbrush handle to remind you when it’s time to buy a new one. From the Philips product page: seems to be REALLY…

19

I bricked my Christmas lights

Reverse engineering Bluetooth LE LED light controllers, or How I Bricked My Christmas Lights If a device communicates via Bluetooth LE and has an app, it deserves to be integrated into my home automation system. I’ve spent a significant amount of time reverse engineering various budget-friendly LED light strips to...

25

CAN Injection: Keyless car theft

This is a detective story about how a car was stolen - and how it uncovered an epidemic of high-tech car theft. It begins with a tweet. In April 2022, my friend Ian Tabor tweeted that vandals had been at his car, pulling apart the headlight and unplugging the cables.