RN-XV Roving Networks Inc, RN-XV Datasheet - Page 34

• Manufacturer Part Number: RN-XV
• Description: MODULE 802.11B/G 2.4GHZ
• Manufacturer: Roving Networks Inc
• Series: -r

Specifications of RN-XV

• Frequency: 2.4GHz
• Data Rate - Maximum: 54Mbps
• Modulation Or Protocol: 802.11b/g
• Applications: General Purpose
• Power - Output: 12dBm
• Sensitivity: -83dBm
• Voltage - Supply: 3 V ~ 3.7 V
• Current - Receiving: 40mA
• Current - Transmitting: 180mA
• Data Interface: PCB, Through Hole
• Memory Size: -
• Antenna Connector: On-Board, Wire Antenna
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 740-1044; RN-XV-W; RN-XVEE; XVEE

When the module wakes up from sleep, it takes a certain amount of time (in milliseconds) to initialize the
internal hardware. During this time, any data that is sent to the WiFly module over the uart will not be
processed. You can monitor certain signals that indicate that the module is ready to accept data. These are
described below.
Once the module is awake, you can open a TCP connection to a remote host in a number of ways described
below. The remote host can be set using the following commands:
set ip host <IP address> OR set dns name <string> // sets up the IP address OR URL of host
set ip remote <port number>
save
reboot
The WiFly modules use the Real Time clock to generate timers. The RTC is active even when the WiFly
module is asleep. This makes it possible to put the module to sleep and wake up from sleep based on timer
intervals using timers.
Sensor Power
Auto connect
Connect on
transition
uart data
Method
Method
Monitor
GPIO 4
GPIO 5
10.1. System Timers and Auto Connect Timers
Open
RTS
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Sensor power
Internal RTC
Uart mode 2
Alternative
Alternative
Interface
functions
functions
RTS pin
Timer
GPIO
GPIO
Type
Uart
pin
Once the WiFly module wakes up, the RTS line goes HIGH. Once the system
is ready, the RTS is driven LOW. This can be monitored by the micro
controller
Set the alternative functions for GPIO 4, 5 and 6 (Refer section 10.5.1). Once
the module wakes up and connects to an AP, GPIO 4 goes high. This
indicates the module is ready to receive data over the UART. Your micro
controller can monitor GPIO 4
You can configure the module to output Vbat, or 3.3V or 1.2V on the Sensor
Power pin when it wakes up form sleep indicating it is ready
Connect out to the host at specific time intervals based upon the set sys
autoconn <secs> command
In command mode, you can issue the open command
This mode is designed for the HTML client feature. Use the set uart mode 2
command to automatically connect out to host on uart data
Set the alternative functions for GPIO 4, 5 and 6 (Refer section 10.5.1). Set
GPIO 5 HIGH to trigger TCP connection, LOW to disconnect
•
Los Gatos, CA 95032
// sets up the port number on which the host is listening
// save settings in config file
// reboots the module so that the settings take effect
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•
Tel [phone]
Description
Description
• [e-mail]
WiFly-RN-UM
WiFly GSX/EZX
5/4/2011