The forest from the trees... adventures in serial transparency

rjo__

Today, I was trying to programmatically set up a couple of HC-05's using AT commands embedded in Spin calls.


I finally had to resort to a terminal interface... to do exactly what I was trying to do with Spin calls. I succeeded and have a completely transparent duplex serial bridge between two Propellers. Whatever I type at one terminal... shows up in the other. SO, that's not the issue. The issue is that my spin code should have been able to configure the HC-05's just as well as I can do it by hand entering AT commands in the terminal one at a time and it doesn't. I have used this same routine many times without an issue...but not with the HC-05.

I looked at Duane's code... don't have the link right now... you can see the spin file in the picture. Somewhere in there, Duane mentioned the issue of FDS framing... which I don't understand... is that the issue here?

rjo__

I should mention that the Bluetooth serial is called ser2 and that the wait_ser2 call simply goes to a routine that calls rxtime()... so that we don't wait forever. That isn't an issue here since we do get the returns and they are reporting both results and errors.

error(0) is "AT command error."

Duane Degn

It looks like you have some unwanted end parenthesis included in your command strings.

For example:

ser2.str(String("AT+PSWD?)",cr,lf))

Should be:

ser2.str(String("AT+PSWD?",cr,lf))

rjo__

rofl

Thanks Duane. I have a chronic problem editing my own stuff. I see it the way I want to see.. not what is actually there.

rjo__

ANd I need to get some more slep

JonnyMac

I was looking at integrating an HC-05 into a project so I wrote the attached terminal program for it. You might find some elements useful.