At Hardware Pioneers Max 2026, it was great to bump into Arduino's Field Engineering Evangelist, Julián Caro Linares, who ...

An audio spectrum analyser is an electronic instrument or device that measures and displays the amplitude of an input signal as a function of frequency. It provides a visual representation of the ...

The September/October 2025 issue of Elektor Mag is out. The magazine explores a range of topics including short-range audio links, satellite tracking, wireless protocols, an inductive AM transmitter, ...

我做了一个带时钟的蓝牙音箱。它显示日期、时间、温度和湿度，并每隔 15 分钟从互联网上更新。它还具有一个 32 波段音频音乐频谱分析仪，可显示不同的音乐模式。时钟或频谱分析仪可以在播放音乐时显示。蓝牙关闭时也可以显示时钟。 这是由 Arduino Nano ...

The Spectrum, developed by Retro Games Ltd., is a contemporary tribute to the iconic Sinclair ZX Spectrum, a microcomputer that left an indelible mark on the early 1980s. By blending the charm of ...

FM (Frequency Modulation) is a popular method for transmitting audio signals wirelessly over a radio frequency carrier wave. In FM transmission, the frequency of the carrier wave is varied in ...

Considering it's been almost impossible to buy a Raspberry Pi for about a year because of supply chain shortages, it's remarkable how many people continue to create interesting and increasingly useful ...

Robert Sontheimer’s Book, ‘Arduino & Co – Measure, Control, and Hack,’ was recently published in English, following its success as a German book. The author takes a unique approach to developing some ...

This paper describes a bio-inspired radio frequency (RF) scene analysis system based on cross-correlating the outputs of two single-chip RF spectrum analyzers. The latter are implemented using ...

This low-cost portable spectrum analyser can be used to analyse the frequency content of input signals up to 5kHz. Frequency spectrum of an input signal possesses vital information, and the same has ...

Shielding is crucial for all manner of electronic devices. Whether you want to keep power supply noise out of an audio amplifier, or protect ICBMs against an electromagnetic pulse from a nuclear ...