Arduino Pro Micro compatible

The Arduino Pro Micro compatible is a arduino + microcontroller component used by makers, students and engineers for electronics and embedded-systems projects.

Specifications

• Microcontroller: ATmega32U4
• Operating Voltage: 5V (16 MHz) / 3.3V (8 MHz) variants available
• Digital I/O Pins: 18 (5 capable of PWM output)
• Analog Input Pins: 9
• Flash Memory: 32 KB (4 KB used by bootloader)
• SRAM: 2.5 KB
• EEPROM: 1 KB
• Clock Speed: 16 MHz (5V version) / 8 MHz (3.3V version)
• USB Interface: Native Micro-USB (built-in USB HID support)
• Communication: UART, SPI, I2C (TWI)

Why Choose Arduino Pro Micro compatible?

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Key Features of Arduino Pro Micro compatible

• Native USB Communication: The ATmega32U4 handles USB directly on-chip, allowing the board to appear as a mouse, keyboard, joystick, or any custom HID device to a connected computer - no FTDI chip or external programmer required.
• Ultra-Compact Form Factor: At just 33 mm x 18 mm, this is one of the smallest Arduino-compatible boards available, making it perfect for wearables, embedded enclosures, and projects where every millimeter counts.
• Breadboard-Friendly Design: Castellated edge pins and standard 0.1" header spacing allow direct soldering or breadboard insertion for rapid prototyping.
• 18 Digital I/O Pins: Generous GPIO count with 5 PWM-capable pins for motor control, LED dimming, and analog signal generation.
• 9 Analog Inputs: More analog channels than most compact boards, enabling multi-sensor data acquisition without external multiplexers.
• Full Arduino IDE Compatibility: Program using the familiar Arduino IDE by selecting "Arduino Leonardo" or "SparkFun Pro Micro" from the board manager. Thousands of existing libraries work out of the box.
• QMK Firmware Support: The go-to board for custom mechanical keyboard builds - fully supported by QMK, VIA, and other keyboard firmware frameworks.
• Onboard Voltage Regulator: Accepts power via Micro-USB (5V) or the RAW pin (up to 12V), with an onboard regulator providing stable voltage to the microcontroller.
• TX/RX LEDs and Power LED: Onboard indicator LEDs for serial activity and power status, simplifying debugging.
• SPI and I2C Support: Connect sensors, displays, SD card modules, and other peripherals through standard communication protocols.
• Ideal for Production & Prototyping: Whether you are building one prototype or deploying hundreds of units, this board delivers consistent performance.

Perfect For

• Custom Mechanical Keyboard: The most popular board for DIY keyboard builds. Use QMK or VIA firmware to create fully programmable keyboards with custom layouts, macros, RGB lighting, and multiple layers. Build split keyboards, macro pads

Arduino Pro Micro Compatible Board

Build compact, powerful USB-enabled projects with this Arduino Pro Micro compatible development board from Tech Depot India, Bengaluru. Powered by the ATmega32U4 microcontroller with native USB support, this board eliminates the need for an external USB-to-serial converter - making it ideal for custom keyboards, game controllers, HID devices, and space-constrained embedded applications.

Frequently Asked Questions

Customer Support

Email: techdepotindia@gmail.com

WhatsApp: Available for setup and troubleshooting help

Order your Arduino Pro Micro compatible today and start building your next project.

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Related: Browse more from our Arduino collection, or see all products at Tech Depot India.