The Nano/Uno Multi-Purpose Expansion Board is an accessory designed to simplify interfacing between an Arduino Nano or Uno and external modules like sensors, servos, communication devices, and other peripherals. It breaks out the microcontroller’s pins into easy-to-use headers so connections become quick, neat, and organized—ideal for prototyping, robotics, automation, and educational projects. Buy Online : https://www.giganepal.com/product/nano-and-uno-multi-purpose-expansion-board/?v=cf3fc9163