Feature: 1. The item is a terminal expansion adapter, working very well for prototyping Arduino Nano projects 2. There are pins expansion hole for the NANO board, which can directly lead the pins; With DC power supply interface, you can directly add external power or battery to supply power 3. With NRF2401+ expansion interface, you can insert NRF2401+ to achieve wireless communication 4. Added a filter capacitor to enhance the stability of wireless communication 5. Size is about 2.6" x 2.0" x 0.3" (L* W* H) Package includes: 5 x Expansion adapter (The battery is not includes)
