The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.
The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.
Model | MICRO |
---|---|
MICROCONTROLLER | ATmega32U4 |
OPERATING VOLTAGE | 5V |
INPUT VOLTAGE (RECOMMENDED) | 7-12V |
DIGITAL I/O PINS | 20 |
PWM CHANNELS | 7 |
ANALOG INPUT CHANNELS | 12 |
DC CURRENT PER I/O PIN | 20 mA |
DC CURRENT FOR 3.3V PIN | 50 mA |
FLASH MEMORY | 32 KB (ATmega32U4) of which 4 KB used by bootloader |
SRAM | 2.5 KB (ATmega32U4) |
EEPROM | 1 KB (ATmega32U4) |
CLOCK SPEED | 16 MHz |
LED_BUILTIN | 13 |
LENGTH | 48 mm |
WIDTH | 18 mm |
WEIGHT | 13 g |