Interpreting WiFly LEDs

Wireless & IoT
1

Is it correct that a “rapidly” flashing green LED means that the WiFly is in “command” mode? (I don’t see that in the manual.)

Also, if the green LED is on (steady), does that mean the WiFly is “locked up” (needs to be reset)? It appears to be…

(As context, I successfully wrote a VC++ program on my PC to talk to the WiFly over my wifi LAN. It seemingly does everything I try.

Now, though, I am using Eclipse-Android-Java to write an app (TCP) for an Android phone (using the emulator, so far), but it only partly works, and the app locks up at some point. I’m trying to isolate just where it happens, but it appears to be deep in the SDK/JDK somewhere. I’m debugging. More later (I hope!).)

Thanks for any info on the LEDs.

CV1

2

I’m pretty sure you are correct that the rapidly flashing green LED indicates command mode … this is what I always see. I observe however that the steady green appears to indicate an open connection. (I’ve only used the device in TCP mode, and this what I see when a connection is OPEN). I guess however a steady LED could also indicate a locked up unit, but I have not seen this.

  • Larry
3

Minimizer:
I’m pretty sure you are correct that the rapidly flashing green LED indicates command mode … this is what I always see. I observe however that the steady green appears to indicate an open connection. (I’ve only used the device in TCP mode, and this what I see when a connection is OPEN). I guess however a steady LED could also indicate a locked up unit, but I have not seen this.

  • Larry
Larry,

Thanks. What exactly do you mean by “open”? When I run my VC++ program (which works), I don’t ever see a “steady” green light; however, it could be, I suppose, that it passes through that stage so quickly that it’s not apparent?

I still haven’t been able to isolate the cause of the locking-up in Java/Android, but I was “distracted” today by having to go to work! :slight_smile: More later (if I get anywhere). Thanks for your response.

Patrick (CJ1)

4

Larry et al.

A short update. I found that the Java OutputStreamWriter needed to be “flushed” (duh), and now the WiFly LED no longer goes steady-green (it flashes rapidly in “control mode”). So onward and upward…

Patrick (CJ1)