Circuit: Arduino-Powered AM Transmitter Circuit: Arduino-Powered AM Transmitter Interested in audio-related projects? One of the most popular Elektor projects in 2015 was Burkhard Kainka's medium-wave ...

Overview: This project aims to develop a smart and interactive Bluetooth speaker system that can be controlled using hand gestures instead of physical buttons. It leverages Arduino, OpenCV, and the MH ...

Building on that concept, the next objective was to create an even smaller FM radio compact enough to fit inside an earbud.

This proof-of-concept is just waiting for you to put it to good use. [Mike Tsao] wrote an Arduino sketch that lets him decode incoming audio data which could be used to program the device. He&#8217… ...

Circuit: Ultrasonic Directive Speaker Back in 2011, Elektor presented a DIY 50-m range directive sound beam using an array of piezo ultrasonic transducers (up to 200) driven with a PWM signal. While ...

Posted in Arduino Hacks, LED Hacks, Musical Hacks Tagged atmega328p, music speaker, vu, VU meter, VU speaker ← Building Custom Integrated Circuits Strike A Chord With This Pocket Keyboard → ...

The ESP32 is a microcontroller that provides an API for Bluetooth A2DP which can be used to receive sound data e.g. from your Mobile Phone and makes it available via a callback method. The output is a ...