Total mastery over the pinout and functionality of the PCA9306 for conversion of logic levels from 5V to 3.3V. A step-by-step interfacing diagram for the PCA9306 to Arduino UNO. Working example with ...

Hiwonder has introduced the WonderLLM, an ESP32-S3-based smart chat module that combines a 2MP camera, a 2.0-inch touch ...

When the Arduino UNO Q was first unveiled in October 2025, the specifications of the Qualcomm DragonWing SBC listed the ABX00162 SKU with 2GB RAM and 16GB ...

The NepoTronics Bluetooth RC Car is a professional-grade wireless robotic vehicle that demonstrates seamless integration of microcontroller programming, motor control systems, and Bluetooth ...

arduino-app-cli is a command line tool running on the Arduino UNO Q boards, that manages and runs Arduino Apps (both Linux and microcontroller parts), provides a HTTP daemon mode to expose RestFul ...

There is certainly nothing wrong with appreciating vinyl the old fashioned way, by connecting a purist turntable to an amplifier, which powers a set of passive speakers. Nowadays, however, many also ...

If you have multiple microphones in known locations, and can determine the time a sound arrives at each one, you can actually determine the location that sound is coming from. This technique is ...

There's no surprise why DAB radios remain popular today: compact designs, hundreds of free stations, easy to use – it's a great way to listen to music, news and sports while going about your day. In ...

I've been a contributing editor for PCMag since 2011. Before that, I was PCMag's lead audio analyst from 2006 to 2011. Even though I'm a freelancer now, PCMag has been my home for well over a decade, ...