One of the limitations of the small 8 bit microcontrollers like the Atmel ATMega family adopted by the Arduino board, is the reduced number of I/O ports. Among the main advantages of these ...
The build uses an Arduino, an MP3 chip, a SD card, LCD screen, amplifier, and two speakers. Everything is then packed into a small repurposed box with buttons and a volume knob. The end result is a ...
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