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This can come either from VIN via an on-board regulator, or be supplied by USB or another regulated 5V supply. The regulated power supply used to power the microcontroller and other components on the board. The input voltage to the MICRO board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source).

If using more than 12V, the voltage regulator may overheat and damage the board.

If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may become unstable. The board can operate on an external supply of 7 to 20 volts. Leads from a battery or DC power supply can be connected to the Gnd and Vin pins. The power source is selected automatically.Įxternal (non-USB) power can come either from a DC power supply or battery. The Micro can be powered via the micro USB connection or with an external power supply. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. The Micro has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent.

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You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header using Arduino ISP or similar see these instructions for details. It communicates using the AVR109 protocol.

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The ATmega32U4 on the Micro comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. For details, see the reference and tutorials. Select 'Arduino/Genuino Micro from the Tools > Board menu.

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The Micro board can be programmed with the Arduino Software (IDE). You can find here your board warranty information. Need any help with your board please get in touch with the official Arduino User Support as explained in our Contact Us page.

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Need Help?Ĭheck the Arduino Forum for questions about the Arduino Language, or how to make your own Projects with Arduino. You can find in the Getting started with the Arduino Micro section all the information you need to configure your board, use the Arduino Software (IDE), and start tinkering with coding and electronics.įrom the Tutorials section you can find examples from libraries and built-in sketches as well other useful information to expand your knowledge of the Arduino hardware and software. If you are looking at upgrading from previous Arduino designs, or if you are just interested in boards with similar functionality, at Arduino you can find:įind inspiration for your projects from our tutorial platform Project Hub. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port. 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. It has a form factor that enables it to be easily placed on a breadboard. It contains everything needed to support the microcontroller simply connect it to a computer with a micro USB cable to get started. 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. The Micro is a microcontroller board based on the ATmega32U4 ( datasheet), developed in conjunction with Adafruit.