Arduino Nano Original

Nano is a small, breadboard-friendly development board based on an 328P/ATmega168 SMD package microcontroller and offers the same connectivity and specs of Arduino Uno in a small package. DC Power Jack is not available on this board so power can only be supplied by a Mini B USB port present on it or 6-20V unregulated external power supply from Pin 30 (Vin). Due to its small size its very popular among IoT based projects which need to be small and user friendly, in Robotics, in Automation, Instrumentation and Control systems

Specifications:

• It has 22 I/O pins in total in which 14 are Digital (6 are PWM output) and 8 are Analog pins.
• Operating Voltage (Logic Level): 5V.
• Supports Serial, I2C, SPI Communication Protocols.
• Flash memory: 32KB in which 2KB is used by Bootloader
• Clock speed: 16MHz
• DC Current per I/O Pin: 40 mA
• SRAM : 2KB, EEPROM: 1KB
• DC Current per I/O pin: 40mA.