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With rely on Authentic Digi XBee Footprint, you can connect Digi Zigbee modules on top of this Raspberry Pi XBee Shield. Also, LTE Cat 1, LTE-M, NB-IoT, 3G, DigiMesh and Thread XBee modules are compatible with this Sixfab Raspberry Pi XBee shield. Easy communication over USB or Serial between Raspberry Pi and XBee is possible.
Description
With rely on Authentic Digi XBee Footprint, you can connect Digi Zigbee modules on top of this Raspberry Pi XBee Shield. Also, LTE Cat 1, LTE-M, NB-IoT, 3G, DigiMesh and Thread XBee modules are compatible with this Sixfab Raspberry Pi XBee shield. Easy communication over USB or Serial between Raspberry Pi and XBee is possible.
Features
Fully compatible with Raspberry Pi models that have the 40-pin GPIO header (3, 2, B+, A+, Zero)
With the authentic Digi XBee footprint, you can connect any Digi XBee module.
You can communicate with the XBee module directly via micro USB, thanks to FTDI USB to UART converter chip. It helps you to connect the Shield to PC via USB and configure the modules directly over XCTU application.
RX-TX, Power ON/OFF, RSSI and User LEDs
1-Wire Sensors Interface
RTS, CTS and RSSI pins connected to both Raspberry Pi’s GPIOs and FTDI USB-UART converter IC.
The mounting holes fit the Raspberry Pi Zero exactly
Optional headers as long, short and headerless
Key Applications
Smart farming sensor
Smart cities sensor
Smart home sensor
Internet of Things (IoT) sensor
Smart door lock
Smart lightning
Smart metering
Bike sharing
Smart parking
Smart city
Home appliances
Agricultural and environmental monitoring
Header Options
Long Header: If you plan to attach another Raspberry Pi HAT or add-on board on top of the XBee Shield, you will definitely need this variation. Also, using GPIOs with jumper cables is possible with these male headers.
Short Header: Are you going to use the XBee shield only, will not add another Raspberry Pi HAT or shield on top of it Or you’ve already attached a board with a long header on Raspberry Pi and you’re planning to plug this shield on top This header option is suitable for you.
Without Header: If just the plugging XBee shield via micro USB cable to Raspberry Pi is enough for you, or you’ve already attached a bulky shield on Pi, doesn’t need directly UART communication, this slim, headerless shield works greatly. For knowing what you missing without headers, take a look at the Pinout Diagram of the shield, these pins will be unconnected.
Technical Details
Connection Types
USB: If you don’t want to occupy UART port on the Raspberry Pi, you should slide the available communication switch on the shield to USB and plug the shield via micro USB to Raspberry Pi. You can start to send and receive AT commands over USB thanks to ‘USB to serial UART translator chip’ on the shield.
UART: The UART pins will be available to use, with 3.3V power domain, directly connected the UART port of Raspberry Pi. Be sure the communication switch on the shield already switched to Pi side.
Electrical
Pinout
Pin Descriptions
Pin Number
BCM Pin
Pin Name
Description
2
5V
5V PWR
This pin is connected to the 5V power net.
4
5V
5V PWR
This pin is connected to the 5V power net.
7
GPIO 4
1-WIRE
Data line to communicate with 1-Wire sensors.
8
UART RX
XBee Module TX
This pin functions as the serial data input to the module for UART communication.
10
UART TX
XBee Module RX
This pin functions as the serial data output from the module for UART communication
11
GPIO 17
RTS
Request to Send flow control
13
GPIO 27
XBee Reset
Reset the XBee module by driving the reset pin to a HIGH-level voltage for certain time then to LOW…
16
GPIO 23
CTS
Clear to Send flow control
18
GPIO 24
XBee_IO1
XBee Module IO pin. Please check the datasheet of XBee module in use
22
GPIO 25
XBee_IO2
XBee Module IO pin. Please check the datasheet of XBee module in use
38
GPIO 20
USER BUTTON
This pin is pulled-up by default. When button is pressed, pin switches to LOW.
40
GPIO 21
USER LED
Active HIGH, to switch on the USER LED, the pin’s state should be HIGH.
6,9,14,25,30,34,39
GND
GND
These pins are connected to ground.
Electrical Characteristics of Pins
Pin Number
BCM Pin
Pin Name
Description
Min
Typ.
Max.
Unit
2
5V
5V PWR
Power Supply
4.8
5
5.25
V
4
5V
5V PWR
Power Supply
4.8
5
5.25
V
7
GPIO 4
1-WIRE
1-Wire data
3
3.3
3.6
V
8
UART RX
XBee Module TX
UART
3
3.3
3.6
V
10
UART TX
XBee Module RX
UART
3
3.3
3.6
V
11
GPIO 17
RTS
Input
3
3.3
3.6
V
13
GPIO 27
XBee Reset
Output
3
3.3
3.6
V
16
GPIO 23
CTS
Input
3
3.3
3.6
V
18
GPIO 24
XBee_IO1
Input / Output
3
3.3
3.6
V
22
GPIO 25
XBee_IO2
Input / Output
3
3.3
3.6
V
38
GPIO 20
USER BUTTON
Input
3
3.3
3.6
V
40
GPIO 21
USER LED
Output
3
3.3
3.6
V
Layout
Schematic
You can download the schematic of Sixfab XBee Shield from this Github repository.
LEDs
POWER (PWR): When the shield is powered up, this RED led turns on.
USER (U.LED): The GREEN user led can be controlled by driving the 22nd GPIO.
RSSI: The BLUE led. Received Signal Strength Indicator (RSSI) measures the amount of power present in a radio signal. It is an approximate value for signal strength received on an antenna. The RSSI is measured in dBm. A greater negative value (in dBm) indicates a weaker signal. Therefore, -50 dBm is better than -60 dBm. XBee module’s pin 6 can be configured as an RSSI pin that outputs a PWM (pulse-width modulation) signal representing this value. To do so, configure P0 pin of XBee as RSSI.
Buttons
USER (U.BUT): This push button connected to GPIO24 and pulled up HIGH state by default. When you push the button, you will read LOW state from GPIO24.
RESET (RST): When the XBee is in powered on, it can be reset by pushing the RESET button for at certain time. Also, driving GPIO27 to the HIGH state will cause a reset.
Mechanical
Dimension
3D Design Files
You can download the 3D design files(STEP, IGES) of the Sixfab XBee Shield from this Github repository.
Package Includes
1x Sixfab XBee Shield v2 for Raspberry Pi
Instructions
You may find your questions in F.A.Q under support menu. If not, please feel free to ask us by contact form or drop an email to hello [at] sixfab dot com.
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