There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

Tony Goacher] has worked with a lot of cheap brushless DC motor controllers built in China. They can be very cost-effective, ...

FRDM-A-S32K312 and FRDM-A-S32K344 evaluation and development boards from NXP Semiconductors. Part of NXP's FRDM Automotive platform, the FRDM-A-S32K312 and FRDM-A-S32K344 boards are designed to ...

UVUMBUZI Tech Challenge - Kenya; EBTIKAR Tech Challenge - Jordan; EBTIKAR Tech Challenge - Jordan. INTRODUCTION. The Ebtikar Tech Challenge! was a four-month-long inno ...

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

ADELPHI, Md. – Army scientists achieved a major milestone in quantum sensing technology that could transform how electromagnetic signals are detected on the battlefield. For the first time, scientists ...

From classical to rock, musicians tune their instruments to a common pitch so they can play together harmoniously. For at least 80 years, that standard pitch frequency has been A440 Hz — which defines ...

Wireless sensors used in wearable smart devices and medical equipment must be capable of detecting minute changes while maintaining high operational stability. However, existing technologies often ...

Drum-like membrane resonators are intriguing for precision sensing because their resonance frequencies can be sensitive to a variety of parameters of interest, from mass to thermal radiation. The ...

Everybody farts. The question is how often? And how much gas is too much gas to pass? Those are questions that arose from frustration with a piece of lab equipment. To see the fart sensor in action, ...

For the unfamiliar, high-frequency facial wands “use a glass electrode filled with either argon or neon gas and a mild electrical current that passes through the gas, which creates a soft tingling ...