FEATURES Compatible with Arduino UNO, Leonardo, easy to connect with various Arduino shields XBee connector for connecting various XBee modules Sensor interface for connecting various sensors Onboard USB TO UART for serial port debugging, also can be configured as XBee USB adapter Onboard ADC, 10 bit, 38KSPS, 11 channels (6 channels for Arduino interface, 5 channels for sensors) Onboard RTC SPECIFICATION 1．Arduino connector : for connecting Arduino shields 2．ICSP interface : Arduino ICSP 3．XBee connector : for connecting XBee communication modules 4．Sensor interface : for connecting sensors 5．Raspberry Pi connector : for connecting Raspberry Pi 6．USB TO UART 7．TLC1543 : AD converter 8．PCF8563 : RTC 9．CP2102 10．32.768KHz crystal : for RTC 11．Power indicator 12．XBee state LED 13．XBee and Arduino interface RESET button 14．XBee EASYLINK button 15．RTC battery holder : for CR1220 button battery 16．TLC1543 reference voltage configuration jumper 17．RTC jumper 18．UART jumper when connecting P_RX and CP_TX, P_TX and CP_RX respectively, USB TO UART is connected to Raspberry Pi serial port when connecting XB_RX and CP_TX, XB_TX and CP_RX respectively, USB TO UART is connected to XBee serial port when connecting XB_RX and P_TX, XB_TX and P_RX respectively, Raspberry Pi serial port is connected to XBee serial port 19．Arduino AD selection jumper short 2 and 3 : Arduino A0-A5 as AD input short 1 and 2 : Arduino A0-A5 as digital control 20．Arduino I2C selection jumper short the jumper : Arduino A4-A5 as I2C control (the A4-A5 of Arduino AD selection jumper should be opened) 21．Arduino SPI selection jumper short 1 and 2 : Arduino D11-D13 as SPI control (default) short 2 and 3 : Arduino D11-D13 as digital control
