The new version of XBee Shield is a standardized and stackable shield compatible with Arduino. You can easily stack any modules from the Bee series onto it, and build a wireless network for your project. In spite of that, it is also equipped with function of level conversion, which enables a double-way conversion between high & low IO levels. The reserved digital pins facilitate users to select TX/RX port using jumper caps.FeaturesStandardized shape designCan be configured by connecting UartSBee module to USBThe DIN and DOUT pins can be connected with both UART and other digital pins（D2~D12）Enlarged space for your own developmentLED indicators