Author Archives: steve bush

RTOS eliminates periodic tick interrupt for lower CPU power

Segger has eliminated periodic tick interrupts in an RTOS, replacing the typically 1ms system tick with a single-shot hardware timer that generates interrupts when, and only when, necessary, it said. Dubbing the technique ‘cycle-resolution timing’, “scheduling of all time-based events, such as time-outs, delays and periodic timers, can now be specified in microseconds or CPU cycles”. It ...

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Cable assemblies combine FAKRA and SMA for automotive

Amphenol is combining the automotive FAKRA connector with SMA connectors for in-vehicle applications such as antennas, RFID and driver assistance systems (ADAS). The 50Ω assemblies have the snap-on FAKRA at one end and the threaded SMA at the other. “FAKRA connectors offer a rugged impact resistant body with mechanically keyed and color-coded housings that meet ...

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Updated: 500 terabytes of data on a CD, almost

The University of Southampton is storing data onto glass at a density that would squeeze 500Tbyte onto a substrate the size of a CD. Data is written as miniature shapes through the bulk of silica glass using the three spatial dimensions. The shapes have two separate optical characteristics – adding two more dimensions – making this ...

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Surface-mount power resistors reach 2W in 1020 size

TT Electronics has expanded its WHPC series of surface mount power resistors to include 1W (WHPC0508X), 1.5W (WHPC0612X) and 2W (WHPC1020X chip) sizes. These are the same size as the company’s similarly-sized parts without the ‘X’ suffix, but can handle more power – ‘X’ stands for extra high power. The earlier (non-X) 0612 and 1020 can handle 0.5W and ...

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Glassification could stabilise Perovskite light emitters

Lead (Pb) halide perovskites, known for fledgling solar cell technology, can also emit light. The materials are generally unstable in the moisture of the atmosphere, deteriorating over hours or days. But researchers in Australia have maintained ~80% of emission despite 10,000 hours of water immersion. Although this was a photo-luminescence proof-of-concept – emitting light when ...

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Updated lighting guide for partially-sighted makes good reading for all

The Thomas Pocklington Trust has once again updated it guide for lighting spaces in which partially-sighted people live, and has broadened its appeal to beyond its original intended audience. “Lighting makes such a difference for partially sighted people, often enabling them to maintain their independence,” the Trust told Electronics Weekly. Now at issue 3, ‘Lighting in ...

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Vandal-resistant push button needs less space behind the panel

C&K has launched anti-vandal push buttons that need less space at the rear compared with its earlier 22mm offering. The ATPS22 series has a shorter bushing than its ATP19 or 22 series, and comes in solder lug or wire terminated versions. The solder version extends 21.15mm from the front of the panel to the tip ...

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Panel potentiometers are stiffer to resist accidental rotation

Vishay has introduced panel potentiometers that are stiffer to rotate, to reduce the chances of operation accidentally or though shock or vibration. Behind the panel, the bodies are 12.5 x 12.5mm, and they are modular, allowing up to seven potentiometers to be stacked on the back of a single shaft. Various switch modules can be ...

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Automotive flexy-to-PCB connector supports MIPI D-PHY

Hirose is aiming MIPI D automotive applications with a 40 position PCB connector for flat flexible PCBs. Called FH75, it supports MIPI D-PHY specifications at up to 1.5Gbit/s. Pads are on a 0.5mm pitch and the connectors are 2mm high. Inside is a “two-point contact design with two independent springs that provide a wiping action ...

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Fan-less Celeron N3350 SBC supports computer vision

KIWI310 is a fan-less Celeron N3350 single-board computer from Axiomtek that supports supports Linux, Android and Windows. Measuring 85 x 56mm, it has Intel’s Gen9 graphic engine built-in, plus a M.2 Key E 2230 slot for adding Intel’s Movidius Myriad X vision processing unit – the M.2 Key E slot can also host a 5G ...

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