A R D U I N O W I R E L E S S P R OTO
SHIELD
Code: A000064
The Wireless Proto shield allows an Arduino board to communicate
wirelessly using a wireless Xbee module or similar
The Wireless Proto shield allows an Arduino board to communicate wirelessly
using a wireless module. It is based on the Xbee modules from Digi, but can use
any module with the same footprint. The module can communicate up to 100 feet
indoors or 300 feet outdoors (with line‐of‐sight). It can be used as a serial/usb
replacement or you can put it into a command mode and configure it for a variety
of broadcast and mesh networking options. The shields breaks out each of the
Xbee's pins to a through‐hole solder pad.
This shield doesn't have the SD socket.
An on‐board switch allows the wireless module to communicate with the USB‐to‐
serial converter or with the microcontroller.
Getting Started
You can find in the Getting Started section all the information you need to
configure your board, use the Arduino So ftware (IDE), and start tinker with coding
and electronics.
https://www.arduino.cc/en/Guide/HomePage
OSH: Schematics
Arduino Wireless Proto Shield is open‐source hardware! You can build your own
board using the following files:
EAGLE FILES IN .ZIP
https://www.arduino.cc/en/uploads/Main/arduino‐wireless‐proto‐shield‐
reference‐design.zip
SCHEMATICS IN .PDF
https://www.arduino.cc/en/uploads/Main/arduino‐wireless‐proto‐shield‐
schematc.pdf
Switch Settings
The Wireless Proto shield has an on‐board switch labelled Serial Select. It
determines how the Xbee's serial communication connects to the serial
communication between the microcontroller (ATmega8 or ATmega168) and USB‐to‐
serial chip on the Arduino board.
When in the Micro position, the DOUT pin of the wireless module is connected to
the RX pin of the microcontroller; and DIN is connected to TX. The wireless module
will then communicate with the microcontroller. Note that the RX and TX pins of
the microcontroller are still connected to the TX and RX pins (respectively) of the
USB‐to‐serial converter. Data sent from the microcontroller will be transmitted to
the computer via USB as well as being sent wirelessly by the wireless module. The
microcontroller will not be programmable via USB in this mode.
With the switch in the USB position, the DOUT pin the wireless module is
connected to the RX pin of the USB‐to‐serial converter, and DIN on the wireless
module is connected to the TX pin of the USB‐to‐serial converter. This means that
the module can communicate directly with the computer. The microcontroller on
the board will be bypassed. To use the shield in this mode, you must program the
microcontroller with an empty sketch (shown below), or remove it from the board.
Empty sketch:
void setup() { }
void loop() { }
[GetCode] ht tps://www.arduino.cc/en/Main/ArduinoWirelessShield?action=sourceblock&num=1
Networking
The Wireless Proto shield can be used with different modules with the same
footprint as the XBeemodules. The instructions below are for the XBee 802.15.4
modules (sometimes called "Series 1" to distinguish them from the Series 2
modules, although "Series 1" doesn't appear in the official name or product
description) and also for the XBee ZNet 2.5 or XBee ZB modules, both known as
"Series 2" modules. All the modules, basically have the same type of configuration
parameters, but differ by the function that they implement and the topologies of
networks that they can create. Can communicate with each other only modules of
the same family.
Addressing
There are multiple parameters that need to be configured correctly for two
modules to talk to each other (although with the default settings, all modules
should be able to talk to each other). They need to be on the same network, as set
by the ID parameter (see "Configuration" below for more details on the
parameters). The modules need to be on the same channel, as set by
the CHparameter. Finally, a module's destination address (DH and DL parameters)
determine which modules on its network and channel will receive the data it
transmits. This can happen in a few ways:
If a module's DH is 0 and its DL is less than 0xFFFF (i.e. 16 bits), data transmitted by that
module will be received by any module whose 16‐bit address MY parameter equals DL.
If DH is 0 and DL equals 0xFFFF, the module's transmissions will be received by all
modules.
If DH is non‐zero or DL is greater than 0xFFFF, the transmission will only be received by
the module whose serial number equals the transmitting module's destination address
(i.e. whose SH equals the transmitting module's DH and whose SL equals its DL).
Again, this address matching will only happen between modules on the same
network and channel. If two modules are on different networks or channels, they
can't communicate regardless of their addresses.
For the "Series 2" modules you must chose which firmware put on the module to
give it Coordinator, Router or End Device functionality. Series 2 use only serial low
(SL) and serial high (SH) for addressing.
Configuration
Here are some of the more useful parameters for configuring your Xbee module.
For step‐by‐step instructions on reading and writing them using AT commands, see
the:
guide to the Wireless shield with the 802.15.4 modules.
https://www.arduino.cc/en/Guide/ArduinoWirelessShield
guide to the Wireless shield with the ZNet 2.5 modules.
https://www.arduino.cc/en/Guide/ArduinoWirelessShieldS2
Make sure to prepend AT to the parameter name when sending a command to the
module (e.g. to read the ID parameter, you should send the command ATID).
Command Description
Valid Values
Default Value
ID
The network ID of the XBee module.
0 ‐ 0xFFFF
3332
CH
The channel of the XBee module.
0x0B ‐ 0x1A
0X0C
SH and SL T he serial number of the XBee module
( SH gives the high 32 bits, SL the low 32
MY
bits). Read‐only.
0 ‐ 0xFFFFFFFF different for
each module
(for
both SH and SL )
The 16‐bit address of the module.
0 ‐ 0xFFFF
DH and DL T he destination address for wireless
communication ( DH is the high 32
bits, DL the low 32).
BD
0
0 ‐ 0xFFFFFFFF 0 (for
both DH and DL )
(for
both DH and DL )
The baud rate used for serial
0 (1200 bps)
communication with the Arduino board or 1 (2400 bps)
computer.
2 (4800 bps)
3 (9600 bps)
4 (19200 bps)
5 (38400 bps)
6 (57600 bps)
7 (115200 bps)
3 (9600 baud)
Note: although the valid and default values in the table above are written with a
prefix of "0x" (to indicate that they are hexadecimal numbers), the module will not
include the "0x" when reporting the value of a parameter, and you should omit it
when setting values.
Here are a couple more useful commands for configuring the XBee module (you'll
need to prependAT to these too).
Command
Description
RE
Restore factory default settings (note that like parameter changes, this is
not permanent unless followed by the WR command).
WR
Write newly configured parameter values to non‐volatile (long‐term)
storage. Otherwise, they will only last until the module loses power.
CN
Exit command mode now. (If you don't send any commands to the module
for a few seconds, command mode will timeout and exit even without
a CN command.)
For more details on configuring the XBee module, see the 802.15.4 modules
product manual or the ZB modules product manual from Digi International.
http://www.digi.com/products/wireless‐wired‐embedded‐solutions/zigbee‐rf‐modules/zigbee‐
mesh‐module/xbee‐zb‐module#docs
http://www.digi.com/products/wireless‐wired‐embedded‐solutions/zigbee‐rf‐modules/zigbee‐
mesh‐module/xbee‐zb‐module#docs
https://store.arduino.cc/usa/arduino‐gsm‐shield‐2‐antenna‐connector 12‐7‐17
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