User manual

WiFly GSX
WiFlyGSX-um.pdf 12/14/2009
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Alternatively you can statically set the IP address by disabling the DHCP service and explicitly
assigning the IP address.
set ip address 169.254.1.2
set ip dhcp 0
You can confirm the device has properly connected to the adhoc network using the ping command.
ping 169.254.1.1 10
To use associate with the WiFly adhoc network from another computer
Open the “Control Panel / Networking and Sharing / Networking and Sharing Center” dialog in Vista
or “Control Panel / Network Connections” dialog in Windows XP. From here, view available networks
and select the name of the adhoc network.
Note: Once associated with the adhoc network, Vista auto IP may take a couple minutes to allocate
an IP address for your computer. To work around this you can assign a static IP address in the
network settings / TCP/IP / Properties menu.
Once associated with the adhoc network you can open a connection or telnet window as you would
with an enterprise connection.
Note: The module does not support adhoc and enterprise network modes simultaneously.
14 Analog Sensor Capability
The WiFly-GSX has 8 analog inputs that can be driven with 0 to 1.2VDC. Warning: over driving
these inputs will cause permanent damage. The analog inputs are sampled and the digital value read
by using the show q <channel> command.
The hardware specifications on the analog input is:
Input voltage range: 0 - 1.2V, however the A2D saturates at 400mV.
Resolution: 14 bits = 12uV
Sampling frequency: 35us
Accuracy: 5% un-calibrated
See the WiFly-GSX (RN-131G) data sheet for more details.
The accuracy of each analog sensor reading can be offset by up to 5% due to variation from chip to
chip. To improve accuracy we recommend using a precision reference voltage on one of the analog
inputs to calculate the offset. The offset will be the same for all analog inputs.
For example, put exactly 200mV on analog input 4. then read channel 4 and compute the offset. Let
us assume for example, if you read 210mv you would know that the offset is +10mv. When you read
input 5 you would add 10mv to the result.
To read a sensor pin, send the following command:
show q <channel>
Channel is the analog input from 0 to 7. The value for the input channel you is measured in
microvolts and is returned as 8xxxxx. The 8 in front is a start marker.