Measurement Devices - brand generique - Multifunctional Learning Based Shield Expansion Board Kit For Arduino R3 Highlights generic brand Multifunctional Learning Based Shield Expansion Board Kit For Arduino R3 Multifunctional Learning Based Shield Expansion Board Kit for UNO A3 It is an open-source code base and Simple i / o platform and the use of a similar Java language development environment. So you can quickly use the language with Flash or Processing ... and other software to do interactive work. Can be used to complete the development of electronic components such as switches or sensors or other controllers, LEDs, stepper motors or other output devices You can also work independently as a software platform that can communicate with . Specification: Material: PCS Board Color: As the picture shows Size: Approx. 3x2.3x0.3inch Package Include: 1 Piece Expansion Board Kit Note: Pls allow 1-3mm error due to difference of manual measurement