Latest In Depth Technology News

Bluetooth turns 20

In January 2018, the Bluetooth Special Interest Group (SIG) celebrated its 20th anniversary. Formed in 1998, the group was started with just a handful of companies who were looking to replace wire for mobile voice and data. Today, membership stands at more than 33,000 companies.

How do digital signatures and certificates provide protection for embedded systems?

When designing for security, the operating environment needs to determine the degree of robustness required. A security architecture must include not only the target device, but all endpoints and users within the overall system. While there are serial numbers, MAC addresses, white lists, and black lists - these designs are not foolproof. Most embedded hacks are accomplished by monitoring network traffic to reverse engineer commands, then replaying the same or modified version from somewhere else.

The best way to generate a negative voltage for your system

Modern active components, such as A/D and D/A converters and operational amplifiers, typically don’t require a negative supply voltage. Op amps in particular are available with rail-to-rail inputs and outputs, and in most cases, input and output voltage can swing to close enough to GND.

Evolution of real-time applications calls for novel memory technologies

We are now beginning to see the emergence of a range of technologies that will lead to major changes in the design of real-time embedded systems. These technologies include the Internet of Things (IoT), artificial intelligence (AI) and augmented reality (AR). The unifying thread between all of them is a greater focus on the use of distributed systems coupled with a need for high performance to deal with the data they generate and consume.

Low cost sensors will help the IoT to be realised

The Internet of Things is developing from being a concept just a few years ago to something far more tangible. But the whole idea of the IoT is dependent upon collecting masses of data from billions of so called edge devices, analysing it and deciding on actions. That data needs to be collected by sensors of all description – and those sensors need to be low cost if the aims of those creating products for the IoT are to be realised.

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