Arduino Pro Micro ATmega32U4 3.3V 8MHz Compatible Board
The Arduino Pro Micro ATmega32U4 3.3V 8MHz Compatible Board is a compact USB-native microcontroller board for makers, engineering students and embedded developers who need an Arduino-compatible board in a very small footprint. Built around the ATmega32U4 microcontroller, the Pro Micro has built-in USB support, so it can be programmed directly over its onboard Micro-USB connector without a separate USB-to-serial converter. This also allows the board to behave as a USB HID device, making it a popular choice for custom keyboards, macro pads, game controllers, mouse/keyboard emulators and compact robotics projects. This 3.3V, 8MHz version is suited for low-voltage sensors, battery-powered prototypes and modules that prefer 3.3V logic. Compared with larger Arduino boards, the Pro Micro is easier to embed inside enclosures, wearable projects and compact student project builds. Research sources list the Pro Micro family with ATmega32U4, native Micro-USB programming, 18 digital I/O pins with PWM support on selected pins, analog inputs, UART/SPI/I2C communication options and Arduino IDE compatibility. The 3.3V/8MHz variant is especially useful where 5V logic may damage peripherals such as some wireless modules, OLED displays and modern sensor breakout boards. Choose this board if you want the familiar Arduino ecosystem with native USB capabilities in a breadboard-friendly, space-saving format. It is an excellent upgrade over basic ATmega328 boards when your project needs direct USB communication or HID functionality.
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₹561.00
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About Arduino Pro Micro ATmega32U4 3.3V 8MHz Compatible Board
Technical Specifications
| PWM | PWM supported on selected digital pins; common listings mention 5 PWM-capable outputs |
|---|---|
| SRAM | ATmega32U4 family: 2.5KB SRAM |
| EEPROM | ATmega32U4 family: 1KB EEPROM |
| Connector | Micro-USB for programming and power |
| Board Type | Arduino-compatible Pro Micro / Leonardo-style development board |
| Clock Speed | 8MHz |
| Digital I/O | Pro Micro family commonly listed with 18 digital I/O pins |
| Flash Memory | ATmega32U4 family: 32KB flash, with bootloader using part of memory |
| Analog Inputs | Analog input capability; Pro Micro listings commonly mention 10-bit ADC channels |
| USB Interface | Onboard Micro-USB, native USB support via ATmega32U4 |
| Microcontroller | ATmega32U4 |
| Operating Voltage | 3.3V logic |
| Arduino Compatibility | Supported in Arduino IDE with Pro Micro / Leonardo-style ATmega32U4 board support |
| Communication Interfaces | UART, SPI, I2C and USB serial/HID capability |
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