Casio release G-SHOCK GBA900 hybrid smartwatch

A few months ago, Casio unveiled new models of analog watches inspired by its classic design. This month, another model hit the manufacturer’s catalog ie. the G-SHOCK GBA900 is a cost-effective hybrid smartwatch that is detachable among competitors. Unlike the GSW-H1000model, this wearable does not have the wearOS system, it is however possible to connect to via Bluetooth and the user’s smartphone via the G-SHOCK Move app, available for Android and iOS. With impact and water resistance (up to 200 meters deep), the watch can...

How does Bluetooth Work?

A ton of devices use Bluetooth to communicate wirelessly, but how does Bluetooth work? In this video, we'll dive into the details of how your smartphone sends audio to your wireless headphones. Bluetooth is rather complicated and thus we're going to use a number of analogies and tools to explain it fully.

Bluetooth encryption broken

Researchers have broken Bluetooth’s encryption key negotiation protocol using an attack they’ve called KNOB – Key Negotiation Of Bluetooth. The vulnerability affects almost all devices that support Bluetooth, but Google has already announced patches for Android devices. The vulnerability was reported in a paper given at this year’s USENIX Security Symposium in California. The researchers, Kasper B. Rasmussen from Oxford University, Daniele Antonioli of Singapore University of Technology, and Nils Ole Tippenhauer of the CISPA...

Piconet [The Bluetooth Network]

Piconet is a computer network which links a wireless user group of devices using Bluetooth technology protocols. A Piconet consists of two or more devices occupying the same physical channel (synchronized to a common clock and hopping sequence). It allows one master device to interconnect with up to seven 7 active slave devices. Up to 255 further slave devices can be inactive, or parked, which the master device can bring into active status at any...