Description
Nano is a small, breadboard-friendly development board based on an ATmega 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
IR Proximity Sensor 
ICR-18650 HONGLI Li-ion Rechargeable bettery 
NEMA 17 Stepper motor 
Dual Shaft DC Geared Motor (BO Motor)