In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

After checking out the hardware of the GEEKOM A5 Pro 2026 Edition mini PC with an unboxing and a teardown in the first part of the review, I've now had ...

Apple is retiring its elite 6K Pro Display XDR in favor of the 5K Studio Display XDR, a more affordable 27-inch monitor. Should you hunt down the old model before it's gone, or opt for the new one?

Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards featuring the ESP32-based u-blox NINA-W102 wireless module, ...

This compact, smartphone-controlled smart telescope is an ultra-portable astrophotography tool for dark-sky trips and ...

In his decades-long career in tech journalism, Dennis has written about nearly every type of hardware and software. He was a founding editor of Ziff Davis’ Computer Select in the 1990s, senior ...

Its back panel and app harbours a lesser-known trick: the ability to act as a digital-to-digital converter (DDC), ...