Smartphone-powered athletic “smart suit” needs no batteries

When it comes to tracking an athlete’s performance, a single wearable sensor doesn’t always provide much information, yet multiple hard-wired sensors restrict movement. That’s a where a new sensor suit comes in – and it’s powered by a smartphone.Contin… Continue reading Smartphone-powered athletic “smart suit” needs no batteries→

Hackaday Podcast 082: DJ CNC, NFC Black Box, Sound of Keys, and Payin’ for 3D Prints

Hackaday editors Elliot Williams and Mike Szczys check in on the best hacks from the past week. All the buzz is the algorithm that can reverse engineer your house keys from the way they sound going into the lock. Cardboard construction goes extreme with an RC car build that’s beyond …read more

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Breaking Smartphone NFC Firmware: the Gory Details

Near-field Communication (NFC) has been around a while and is used for example in access control, small data exchange, and of course in mobile payment systems. With such sensitive application areas, security is naturally a crucial element of the protocol, and therefore any lower-level access is usually heavily restricted and …read more

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Son of Rothult

We are continuously inspired by our readers which is why we share what we love, and that inspiration flows both ways. [jetpilot305] connected a Rothult unit to the Arduino IDE in response to Ripping up a Rothult. Consider us flattered. There are several factors at play here. One, the …read more

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NFC Ultralight C – design an authentication system (can it be clone protected?)

I am trying to design an authentication system that will be based on NFC Ultralight C cards.
Key concept in my system is that the card identifies a specific person, but this concept can be easily broken if the card can be cloned.
I want to… Continue reading NFC Ultralight C – design an authentication system (can it be clone protected?)→

Hands On With a Batteryless E-Paper Display

E-paper displays are unusual in that power is only needed during a screen update. Once the display’s contents have been set, no power whatsoever is required to maintain the image. That’s pretty nifty. By making the display driver board communicate wirelessly over near-field communication (NFC) — which also provides a …read more

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