Networking, Protocols, and Devices
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Nov 19, 2012, 03:21 pm
Has anyone made a project with 2 or more "WiFly's"? I want to connect them to my Arduino UNO and have them do something cool... I have the pinout documentation but I am looking for more of a step by step guide/website that will outline the projects (newbie
. Thanks in advance!!
Nov 20, 2012, 03:13 pm
You might have to specify what you mean by WiFly.
If you're talking about the RN-XV (WiFly in XBee form factor), you probably won't be successful. These modules are quite picky about the serial interface, so you can communicate with them only over the hardware serial with reasonable speeds (highest speed I got reasonable results was 4800). Because the UNO has only one hardware serial, you'll be in trouble. Why do you wanna connect two WiFlys to one Arduino? How does that make sense? Would a Mega2560 be a possible alternative (4 hardware serials)?
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Nov 22, 2012, 05:07 am
You can go much faster than 4800. They work with SoftwareSerial.
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Nov 30, 2012, 07:40 pm
The Wifly model I have is made by Roving Networks RN-111B. I just wanted to do something cool over a wireless network with them. The way they came was connected to a Primex board and were used as temperature sensors. If I could just connect one as is (connected to the Primex board and setup as a temp sensor) to my Arduino board and retrieve temp readings of my house I would be very happy. Please advise on where to start.
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Nov 30, 2012, 08:47 pm
(highest speed I got reasonable results was 4800).
Were you using SoftSerial here, or the main hardware UART, to talk to the RN-XV?
If using SoftSerial, the baudrate problem may be there, and not in the RN-XV. Despite
what sbright said, I've never had good luck with SoftSerial myself.