Leland Teschler • Executive editor Officials estimate it will cost $50 billion to field the chargers needed for the expected number of electric vehicles on U.S. roads by 2030. But it’s possible that spending every penny of this amount won’t prevent the extinction of the cross-country road trip. Here’s the logic behind that statement: It’s […]
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Audio filters: Understanding acoustic waves – Part 2
In the previous tutorial, sound waves and their properties were discussed. Now, let’s learn about acoustic waves. Sound waves typically refer to frequencies that are audible to humans, which are in the 20 Hz to 20 kHz range. However, waves with frequencies that are greater than 20 kHz are ultrasonic waves. And, those in the […]
Delivering advanced face recognition capabilities at the edge
By Rick Bye, Senior Product Marketing Manager, NXP Using face recognition for access control The COVID-19 pandemic highlights concerns over how many different surfaces we often touch during a typical day. For example, everyone entering a secured building, such as a workplace or after-hours hotel entrance, touches access control keypads that present an ideal surface […]
How to design an effective telehealth system
By Marcel Consée, Mouser Electronics Healthcare can be deeply personal, and direct contact between patients and medical personnel remains vital. However, taking the relationship between doctors and nurses out of the equation can sometimes make sense. Medical crises such as the global COVID-19 pandemic accelerate the adoption of telehealth methods, even though the original idea […]
What is Wi-Fi HaLow? Players and future
Part 1 focused on HaLow technology; this part will explore who the major players are and discuss the future of the technology. Who are the major HaLow players? A few silicon startups are taking the lead in Wi-Fi HaLow rather than the traditional major chipmakers. They include Morse Micro, Newracom, Methods2Business (an IP provider), and […]
When to use NPN and PNP transistors and FETs
Most bipolar junction transistors and field-effect transistors (FETs) have three terminals. In the BJT symbol, the base lead is perpendicular to and lands at the midpoint of a short line segment representing the semiconductor substrate. The emitter has an arrowhead embedded in the lead, so the remaining lead has to be the collector. If the […]
What is Wi-Fi HaLow? Part 1
In the first part of this two-part series, we focus on Wi-Fi HaLow technology. Part two will explore who the major players are and discuss the future of the technology. What is HaLow? In 2017 the wireless networking standard IEEE 802.11ah, also called Wi-Fi HaLow (pronounced “HAY-Low”), was released. HaLow uses the 900 MHz industrial, […]
Technical challenges of automated vehicles
Automated vehicles, also called self-driving cars or autonomous vehicles, are slowly emerging. It’s not an “all or nothing” situation. Features and technologies needed for automated driving are being developed incrementally, with some already in use. This FAQ looks at some of the technologies needed for automated driving, including various levels of “driver support features” versus […]
Exfo rejects another Viavi takeover bid
Communications test-equipment choices would get still fewer if Exfo’s board accepts an offer, but that’s highly unlikely.
IMS 2021: Components to test equipment
A hybrid International Microwave Symposium (IMS) took place live in Atlanta and online two weeks later in June 2021. See a selection of companies and product — mostly 5G — showcased in the virtual version.
