I have the wifly rn171 and the arduino uno and i am trying to create a wireless traffic emulator whose power/throughput i can control. Power and throughput I believe I can control through some simple wifly commands, but the traffic generation step i am a bit confused on. Is there a way to couple a program like iperf with the arduino or is there a similar one i can run? I want the system to run off of battery power and not be attached to a laptop ideally.
wireless traffic emulator
Describe what you understand by the this term. If you want to have a traffic generator to saturate your wireless network, use a computer and not a microcontroller, it simply cannot generate enough data for that task.
pylon:
wireless traffic emulator
Describe what you understand by the this term. If you want to have a traffic generator to saturate your wireless network, use a computer and not a microcontroller, it simply cannot generate enough data for that task.
Ideally I would like to have multiple wifly nodes communicating together in the same environment. I don't care what is being sent between them, which is why I wanted to try and install iperf or something similar, which just generates random packets at a given saturation level. Right now I am able to simply make the wifly/arduino combo act as an access point, and then using two laptops have them communicate using iperf through it. While this does work in the short term and I can control the throughput,power, etc of the wifly, ideally i would like a standalone system that i can easily move around.
What's the planed purpose of this device? How much traffic do you expect it to generate?
Remember: the device gets it's data from the microcontroller by a serial interface.
pylon:
What's the planed purpose of this device? How much traffic do you expect it to generate?
Remember: the device gets it's data from the microcontroller by a serial interface.
Using Iperf on the pc i can max out the traffic and send as much or as little data as i want. It has a built in traffic generation function. Usually the prgoram is run on linux or a more capable pc than just the arduino board, so before I got into attempting to reprogram iperf for arduino (which i probably wont do and will try a pcduino instead) i thought i would check if anyone had tried a packet generator/wifi traffic generator setup with arduino before.
The purpose of the device is just to broadcast wifi packets from one wifly to another. nothing more, just have traffic exist over a two node communcation.
The purpose of the device is just to broadcast wifi packets from one wifly to another. nothing more, just have traffic exist over a two node communcation.
That's not a purpose, that's how you want to do it. Is the purpose just to fill the WiFi spectrum with noise? I don't see any sense in sending random data from one node to the other. Even if you measure the bandwidth you might get with this hardware combination, that data won't have any value because you cannot transfer these measurements to a PC you might install in the same area.
BTW: you cannot generate enough data with an Arduino to even fill an 802.11b network.