Arduino pro mini 3.3v 8Mhz

Arduino pro mini 3.3v 8Mhz


The Arduino Pro Mini 3.3V 8MHz is a compact and versatile microcontroller board based on the ATmega328P. It is designed for projects requiring low power consumption and operates at 3.3V with a clock frequency of 8MHz. The board is similar to the Arduino Uno but lacks a built-in USB-to-serial adapter, making it smaller in size and suitable for applications where space is limited. It retains compatibility with the Arduino IDE, allowing easy programming and deployment of projects in various fields such as robotics, sensors, and battery-operated devices.

Key Features:

  • Microcontroller: ATmega328P
  • Operating Voltage: 3.3V
  • Clock Frequency: 8MHz
  • Digital I/O Pins: 14 (of which 6 provide PWM output)
  • Analog Input Pins: 8
  • Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader
  • SRAM: 2 KB (ATmega328P)
  • EEPROM: 1 KB (ATmega328P)
  • Power Consumption: Typically 5 mA
  • External Power Supply: 3.3V to 12V (recommended)

Technical Specifications:

  • Dimensions: 18 mm x 33 mm
  • Weight: 2 g
  • Communication: UART, SPI, I2C
  • On-board LEDs: Power, TX, RX
  • Operating Temperature Range: -40°C to +85°C
  • Programming: Through an external USB-to-serial adapter (not included)
  • Compatible with Arduino IDE for easy programming and development


  • Low-power IoT Devices
  • Wearable Electronics
  • Sensor Networks
  • Battery-powered Projects
  • Embedded Systems
  • Educational and Hobbyist Projects

For detailed technical information, refer to the Arduino Pro Mini Datasheet.


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