Get started with the XBee Smart Modem Development Kit XBIB-CU-TH reference
Digi XBee3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
25
Number Item Description
8 UART Dip
Switch
This dip switch allows the user to disconnect any of the primary UART
lines on the XBee from the USB to UART conversion chip. This allows for
testing on the primary UART lines without the USB to UART conversion
chip interfering. Push Dip switches to the right to disconnect the USB to
UART conversion chip from the XBee.
9 Grove
Connector
This connector can be used to attach I2C enabled devices to the
development board. Note that I2C needs to be available on the XBee in
the board for this functionality to be used.
Pin 1: I2C_CLK/XBee DIO1
Pin2: I2C_SDA/XBee DIO11
Pin3: VCC
Pin4: GND
10 Temp/Humidity
Sensor
This as a Texas Instruments HDC1080 temperature and humidity
sensor. This part is accessible through I2C. Be sure that the XBee that is
inserted into the development board has I2C if access to this sensor is
desired.
11 XBee Socket This is the socket for the XBee (TH form factor).
12 XBee Test
Point Pins
Allows easy access for probes for all 20 XBee TH pins. Pin 1 is shorted to
Pin 1 on the XBee and so on.
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