A
Anonymous
Apr 16, 2026
Rating: 3/5
Good but Needs Soldering
Works well once set up, but I wished the headers were pre-soldered for immediate use.
Description
Pro Micro Microcontroller Development Board Featuring Atmega32U4 with Built-in USB Programmer 5V/16MHz
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | ATmega32U4 |
| Operating Voltage | 5V |
| Clock Speed | 16 MHz |
| Flash Memory | 32 KB |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Digital I/O Pins | 18 |
| PWM Channels | 7 |
| Analog Input Channels | 12 |
| USB Interface | Native USB (Micro USB) |
5 reviews
A
Anonymous
Apr 09, 2026
Rating: 5/5
Native USB is a Game Changer
No need for extra converters or FTDI modules. It shows up as a keyboard or mouse directly.
A
Anonymous
Mar 28, 2026
Rating: 4/5
Compact and Powerful
Great board but pins are close together which makes soldering headers a bit challenging for beginners.
A
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for Custom Keyboards
Used this for a macro pad build and the native USB support made it incredibly easy to program without external programmers.
A
Anonymous
Feb 27, 2026
Rating: 5/5
Reliable for Robotics
Running motors and sensors smoothly on my small rover project. Voltage regulation is stable.
5 FAQ
Q: What is the max current per pin?
A: We recommend drawing no more than 40mA per I/O pin to ensure longevity of the microcontroller.
Q: Can I power it with 3.3V logic?
A: This is the 5V/16MHz version. For 3.3V logic, you would need a level shifter or the 3.3V variant.
Q: What bootloader does it use?
A: It comes pre-loaded with the Caterina bootloader which enables native USB functionality.
Q: Does this work with Arduino IDE?
A: Yes, this board is fully compatible with the Arduino IDE using the Arduino Leonardo board profile.
Q: Are headers pre-soldered?
A: Typically sold without headers to allow for flexible mounting, but soldering them is straightforward.
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