The Sonicare electric toothbrushes have a NFC chip in the brush that triggers a replace brush light after a certain number of uses. So now they’re trying to force the user to buy another brush! And it’s hard to defeat and is password protected. This is just like the incandescent lights that were *made* to last only 1000 hours!

What bothers me is that the chip turns the brush into e-waste.

HACKING A “SMART” ELECTRIC TOOTHBRUSH TO RESET ITS USAGE COUNTER
https://hackaday.com/2023/05/27/hacking-a-smart-electric-toothbrush-to-reset-its-usage-counter/

In this video I will try to pick an RFID lock electrically. Will I succeed or fail? We will find out. Along the way we will learn tons about 125kHz RFID locking systems and how “secure” they are. Reading and writing to RFID tags will of course also be a part of that. So let’s get started!

Thanks to Morning Brew for sponsoring this video.

0:00 RFID Door Locking System Overview
1:17 Intro
2:12 How I built the Locking System
4:03 RFID Theory
5:54 Amazon RFID Writer/Reader
6:46 Amp Mod (Increase Reading Distance)
8:40 Coil Mod (Increase Reading Distance)
10:41 Verdict

The first time I got one of these tickets it took me by surprise. I was used to the magnetic stripe tickets when they switched to a paper ticket with RFID circuitry inside.

The Glasgow Subway is the third oldest underground railway in the world, and is completely underground for its whole route. It’s a very simple system with two continuous tracks, an inner and outer circle. If you miss your stop you can either get off at the next station and get the first train back, or just go right round the whole loop again. It takes about 20 minutes.
It’s a single fare system whether you’re going a single stop or to the furthest station.