Pin Descriptions:

Pin nr. Name Direction Default description
pin 1 vcc
pin 2 Dout Output Output UART Data Out
pin 3 DIN / CONFIG Input Input UART Data In
pin 4 DIO12 Either Disabled Digital I/O 12
pin 5 RESET Input
pin 6 PWM0 / RSSI / DIO10 Either Output PWM Output 0 / RX Signal Strength Indicator / Digital I/O 10
pin 7 PWM1 / DIO11 Either Disabled PWM Output 1 / Digital I/O 11
pin 8 [reserved] Do not connect
pin 9 /DTR / SLEEP_RQ/ DIO8 Either Disabled Pin Sleep Control Line or Digital I/O 8
pin 10 GND Ground
pin 11 DIO4 Either Disabled Digital I/O 4
pin 12 /CTS / DIO7 Either Output Output Clear-to-Send Flow Control or Digital I/O 7
pin 13 ON /SLEEP / DIO9 Output Output Module Status Indicator or Digital I/O 9
pin 14 VREF Feature not supported on this device.
Used on other XBee devices for analog voltage reference.
pin 15 Associate / DIO5 Either Output Associated Indicator, Digital I/O 5
pin 16 /RTS / DIO6 Either Disabled Input Request-to-Send Flow Control, Digital I/O 6
pin 17 AD3 / DIO3 Either Disabled Analog Input 3 or Digital I/O 3
Each reading is a 10-bit ADC value for a 2.5 V voltage reference.
pin 18 AD2 / DIO2 Either Disabled Analog Input 2 or Digital I/O 2
Each reading is a 10-bit ADC value for a 2.5 V voltage reference.
pin 19 AD1 / DIO1 Either Disabled Analog Input 1 or Digital I/O 1
Each reading is a 10-bit ADC value for a 2.5 V voltage reference.
pin 20 AD0 / DIO0 Either Input Analog Input 0, Digital I/O 0
Each reading is a 10-bit ADC value for a 2.5 V voltage reference.
The XBee Cellular Modem has 4 ADC inputs available to the user.
These channels allow measurement of a voltage on the pin.
The voltage measurement is represented and returned as a 12-bit value, which is a number between 0 and 4095, where 0 represents 0 V and 4095 represents 2.5 V.