IoTCrazy Pro Micro ATmega32U4 Board, USB-C
- Pro Micro with ATmega32U4 at 16 MHz and the Leonardo bootloader
- Native USB HID: emulate a keyboard or mouse from your sketch
- USB Type-C with pre-soldered headers
All prices in CAD. GST/HST/PST is added at checkout based on your province.
At a glance
| SKU | IOT-PM-001 |
|---|---|
| Category | Arduino |
| Unit price | $19.99 |
| Availability | 16 in stock |
| Shipping | Calculated at checkout |
| Ships from | Calgary, AB, Canada |
| Warranty | 1 year, repair or replacement |
About this product
Overview
The IoTCrazy Pro Micro is a compact microcontroller board built around the ATmega32U4 and flashed with the Leonardo bootloader. Its defining trick is native USB: the microcontroller talks to your computer directly, so the board can present itself as a keyboard, mouse or other HID device rather than just a serial port.
The 8-bit processor runs at 16 MHz with 32 KB of flash, 2.5 KB of SRAM and 1 KB of EEPROM — ample for macro pads, custom controllers, small robots and sensor projects. Programming and power run over USB Type-C, and the headers arrive pre-soldered.
Key Features
- ATmega32U4 at 16 MHz — 8-bit AVR with plenty of headroom for typical maker projects
- Native USB with Leonardo bootloader — Emulate a keyboard, mouse or HID device straight from your sketch
- Practical I/O — 12 digital I/O pins, 5 of which double as analogue inputs, plus PWM outputs
- Hardware serial and I²C — Connect displays, sensors and other peripherals without bit-banging
- On-board regulator — Accepts a range of supply voltages for stable operation
- USB Type-C — Modern reversible connector for programming and power
Specifications
| Brand | IoTCrazy |
|---|---|
| Model | Pro Micro ATmega32U4 |
| Microcontroller | Microchip ATmega32U4, 8-bit AVR |
| Clock speed | 16 MHz |
| Flash | 32 KB |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Digital I/O | 12 pins, 5 usable as analogue inputs |
| Bootloader | Arduino Leonardo |
| USB | Type-C, native USB HID capable |
| Interfaces | Hardware UART, I²C, SPI, PWM |
| Headers | Pre-soldered |
| Warranty | 3 months |
| Host support | Windows, macOS, Linux |
What's in the Box
- 1 × IoTCrazy Pro Micro ATmega32U4 board with pre-soldered headers
Where you'll put it to work.
A compact Arduino-compatible board with native USB, so it can act as a keyboard, mouse or game controller out of the box.
Custom keyboards
The classic controller for split and mechanical keyboards running QMK firmware.
Macro pads & HID
Shortcut pads, stream decks and accessibility switches that plug straight into any computer.
Game controllers
Arcade sticks, flight panels and sim-racing button boxes with no drivers required.
Small wearables
Its tiny footprint suits costumes, badges and projects where space is tight.
Pairs well with this Arduino.
Related boards, kits and accessories picked from the same family.
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![Arduino Micro with Headers [A000053]](https://iotcrazy.com/uploads/69/01.jpg)
![Arduino Nano 33 BLE Sense Rev2 with Headers [ABX00070]](https://iotcrazy.com/uploads/70/01.jpg)
Packed in Calgary. Paid through Stripe. Easy to return.
No account needed — guest checkout is the default, and your order number is all you need to track it.