Arduino
Arduino Promini 3.3V 8MHz Board
An ultra-compact 3.3V/8MHz ATmega328P board built for low-power, battery-friendly projects.
LKR 900
In stock
Key features
- Compact and lightweight design for portable projects
- Low power consumption, ideal for battery-powered devices
- ATmega328P microcontroller with 32KB flash memory
- 14 digital I/O pins (6 PWM) and 6 analog input pins
- Supports UART, I2C, and SPI communication
- Fully compatible with the Arduino IDE
- Operates at 3.3V with a wide input voltage range (up to 12V)
- Includes onboard reset button and status LEDs
Island-wide delivery
Genuine parts
Easy returns
The Pro Mini 3.3V 8MHz packs a full ATmega328P into one of the smallest Arduino-compatible footprints around. Running at 3.3V and 8MHz keeps power draw low, so it is a natural fit for battery-powered gadgets, wearables and space-tight IoT nodes. It programs straight from the Arduino IDE (via a USB-to-serial adapter) and drops neatly into robotics and prototyping work.
Specifications
- Microcontroller: ATmega328P
- Operating voltage: 3.3V
- Clock speed: 8MHz
- Flash memory: 32KB (0.5KB used by bootloader)
- SRAM: 2KB · EEPROM: 1KB
- 14 digital I/O pins (6 with PWM), 6 analog inputs
- DC current per I/O pin: 40mA
- Input voltage: 3.3V recommended (3.3V–12V limits)
- Dimensions: 18mm × 33mm · Weight: ~2g
- UART, I2C and SPI support · Arduino IDE compatible
