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, ...

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.

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 ...

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 ...

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 ...

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 ...

When you want to measure temperature with an Arduino or other microcontrollers, there are a ton of options for sensors. Temperature chips and sensor modules abound, some with humidity sensors built-in ...