SparkFun ATMEGA32U4 Breakout

SparkFun ATMEGA32U4 Breakout

SparkFun ATMEGA32U4 Breakout




Available version :: 1 available COD: DEV-11117 Categories: , , , , ,


The ATMega 32U4 is an 8-bit AVR microcontroller featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM and a 12-channel 10-bit A / D-converter. It even has on-chip 2.0 USB. You might recognize it from our Pro Micro development boards as well as the Arduino Leonardo.

This breakout is designed for people who are interested in programming outside of the Arduino IDE in order to take advantage of lower-level programming capabilities. The board comes pre-loaded with the LUFA CDC bootloader, which allows you to build your code with WinAVR and then program the chip through the USB interface using the programAVRDUDE and without using an external hardware programmer.

When you power the board, your application will run by default. If there's no application in program memory then the bootloader will run. 7 seconds to allow time for programming, if you have an application already on the IC and you want to reprogram it, simply press the on-board reset button.

The first time you plug in your windows, Windows will ask for a driver. Install the INF file below and the board should enumerate as a COM port.

Each pin on the breakout board is labeled with the AVR pin name including the port letter (PB0, PF6, etc.) to make prototyping a little easier. Check out the Github repository for updated example code, the source bootloader and build files, and additional programming information.


Additional information

Weight 0.05 kg
Dimensions 5 × 1 × 3 cm




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