Here’s an inexpensive Arduino-based MP3 Jukebox (translated ... to this he added a custom face plate to host the character LCD, rotary encoder, two buttons, and to act as a grill for the ...

At the heart of the device is a AD9833 waveform generator; with the Arduino, rotary encoder, and 16×2 LCD providing an interface to control it over SPI. Unfortunately, the AD9833 doesn’t have ...

Adafruit has made an I2C interface for four rotary encoders. It comes in the form of a PCB with four ... at any time over I 2 C,” according to the company. “You can use our Arduino library to control ...