The Arduino Micro without Headers is a compact and versatile microcontroller board based on the ATmega32U4. Developed in collaboration with Adafruit, it stands out for its built-in USB functionality, which allows it to be recognized as a mouse or keyboard when connected to a computer. This feature makes the Arduino Micro particularly suitable for interactive projects that require control inputs.
With 20 digital input/output pins, 7 of which support PWM outputs and 12 as analog inputs, the Arduino Micro provides ample connectivity for a variety of components and sensors. Its 16 MHz crystal oscillator ensures reliable and precise timing for operations. The board's micro USB connection not only facilitates programming and serial communication but also powers the board, making it easy to connect and use.
One of the notable advantages of the ATmega32U4 is its built-in USB communication, eliminating the need for an external processor. This integration allows the Micro to emulate a mouse and keyboard, offering unique interfaces for custom projects. Moreover, its small form factor and the absence of headers make it ideal for embedding in a wide range of devices and applications, especially where space is a constraint.
The technical specifications include 32 KB of flash memory, 2.5 KB SRAM, and 1 KB EEPROM. With its dimensions of 48 mm in length and 18 mm in width, and a weight of just 13 g, the Arduino Micro is perfectly suited for portable and space-sensitive projects.