The Nano V3 is a compact, breadboard-friendly microcontroller module based on the ATmega328. It includes a Mini-USB port for programming, power, and serial communication, and provides 22 IO pins with digital, analog, and PWM functionality. When using the Arduino IDE, select the Old Bootloader. Key features and benefits - Compact, breadboard-friendly design for space-constrained projects - Easy programming via Mini-USB port with serial communication - 22 IO pins offering digital, analog, and PWM functions for versatile applications - 5 V logic level suitable for a wide range of sensors and modules - Compatible with Arduino IDE using the Old Bootloader setting - Lightweight and low power consumption for portable or battery-powered projects Specifications - Logic level: 5 V - Flash memory: 32 KB - SRAM: 2 KB - EEPROM: 1 KB - Clock speed: 16 MHz - Analog input pins: 8 - PWM output pins: 6 - Total IO pins: 22 - Max current per I/O pin: 40 mA - Power supply: 7–12 V - Current consumption: about 19 mA Physical characteristics - PCB size: 18 x 45 mm - Weight: 7 g Contents - 5x Nano V3 microcontroller module - 10x Male Header 15 pins - 3x Male ICSP header 2x3 pins (headers not assembled) Use scenarios - Education and rapid prototyping: ideal for learning microcontroller concepts and testing code on a compact board before scaling up to larger designs. - Compact sensor node or data logger: suitable for collecting data from sensors and sending results via serial communication in a small form factor. - Small robotics and actuator control: PWM capable outputs support control of servos or lightweight motors in compact robotic projects.