The Arduino Mini Amplifier is a complete, open-source audio amplifier system that combines vintage analog audio processing with modern embedded control. It features Bluetooth and line-in audio inputs, ...

Browsing websites like Aliexpress, it is very easy to find a ton of very cheap, small class-D amplifiers with good power ratings - from sub 0.50€, 3W-capable boards based on a PAM8403 IC, to 500W ...

With the end of the summer right around the corner, now is a good time to look back at some of the most notable engineering articles and projects from previous August editions of Elektor. Check out ...

Microphone Pre-Amp for Arduino ... A standard electret microphone and a single-transistor amplifier provide an audio signal that can be processed by an Arduino’s analog input.Here's how it's done.

The FM receiver module is based on the TEA5767 [1, 2] chip. It is a well-known module that could be controlled via the I2C bus. It covers the FM frequency range from 76MHz to 108MHz. At the output, it ...

A DC motor can be switched ON and OFF using this amplifier circuit while being able to regulate its spinning speed with a PWM source generator. The circuit is using the pin 9, 10, and 11 from the ...

LilyGO introduced the ESP32 powered T-Watch-2020 smartwatch last year with a slim form factor, a 1.54-inch LCD capacitive touch screen, WiFi & Bluetooth connectivity, and support for Arduino. The ...