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4
3.
Interface functions
J1:
Grove Interface, used for connecting to UART Interface of Arduino/Seeeduino.
J2, J3:
Breakout connection for every pin of Xbee.
J4, J5:
Bee sockets
U1:
CJT1117 IC, Low dropout linear regulator. Used for power 3.3V for XBee modules.
U2, U3:
SN74LVC1G125 IC, protects your XBee from 5V Signal, converting it to 3.3V.
RSSI indicator:
XBee RX Signal Strength Indicator.
PWR LED:
Power Indicator.
ASSOC indicator:
Xbee Associated Indicator.
ON/SLEEP LED:
XBee module Status Indicator.