Arduino Promini 3.3V 8MHz Board The Promini 3.3V 8MHz is an ultra-compact, Arduino-compatible microcontroller board equipped with the ATmega328P processor, optimized for low-power, high-efficiency applications. Operating at 3.3V and clocked at 8MHz, this board is perfect for space-constrained projects, IoT systems, and battery-powered devices. Its lightweight design and robust performance make it a versatile choice for advanced DIY electronics, robotics, and prototyping applications. Compatible with the Arduino IDE, it offers seamless integration for hobbyists and professionals alike. Specifications : Microcontroller: ATmega328P Operating Voltage: 3.3V Clock Speed: 8MHz Flash Memory: 32KB (0.5KB used by bootloader) SRAM: 2KB EEPROM: 1KB Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 6 DC Current per I/O Pin: 40mA Input Voltage (recommended): 3.3V Input Voltage (limits): 3.3V–12V Dimensions: 18mm x 33mm Weight: Approx. 2 grams