Python 2.7 is actually IDLE for windows, confusing with the Raspberry pi have the same program name.

I Must remember not to try and browse the Internet when connected to the PI robot!!

I will now be setting up my grandsons PC for accessing the pi_robot

Really excellent work.
Mick

c:\Python27\python.exe motor_test.py 192.168.42.1

As python may not have been added to your PATH environment variable.

Sorry, I’ve got a bit tied into Linux/Ubuntu over the last 5 years.

Regards

Alan

You would need to restore the line to the original

parser.add_argument( "hostname", default="localhost", nargs='?', help="The ip address of the robot" )

Basically this is configuring a command line parser for the script so that it has an argument called hostname that takes the network address of the robot. The default value of localhost means that it will try to attach to a version of the robot web server running on the same computer (this is for when scripts are running on the Pi robot).

I’ve not had a huge amount of experience with running IDLE, but the way I’d run this to begin with is to open up a command line prompt, navigate to the directory containing motor_test.py and then run

python motor_test.py 192.168.42.1

Where 192.168.42.1 is the IP address of the robot (this may be different if you’ve plugged it into ethernet)

Once you’ve confirmed that that works, then it may be possible to configure IDLE so that it passes command line arguments to the program. Alternatively, to set the default network address to be the robot’s address you would change that line to be

parser.add_argument( "hostname", default="192.168.42.1", nargs='?', help="The ip address of the robot" )

Hope that helps.

Regards

Alan

I have connected my laptop from my normal router to the Pi_Mini_Robot.
I am trying to get a simple example program that you wrote will or should expect it to work the way I have done it.
i.e. after opening “IDLE Python GUI” and opening the “motor_test.py”, then amending the line to:
parser.add_argument( “hostname”, default=”Pi_Mini_Robot”, nargs=’?', help=”192.168.41.1″ )
(I have tried a few other permutations!!)
Pressing F5 to run the program/ code.
I get the following response in the “Python Shell”

******* message shell response ***********
Connecting to ws://Pi_Mini_Robot:80/robot_control/websocket

Traceback (most recent call last):
File “C:\opencv231\DawnRobotics-py_websockets_bot-2cf9c47ea171\examples\motor_test.py”, line 20, in
bot = py_websockets_bot.WebsocketsBot( args.hostname )
File “C:\Python27\py_websockets_bot\__init__.py”, line 244, in __init__
self._websocket = websocket.create_connection( url )
File “C:\Python27\py_websockets_bot\websocket\__init__.py”, line 214, in create_connection
websock.connect(url, **options)
File “C:\Python27\py_websockets_bot\websocket\__init__.py”, line 464, in connect
self.sock.connect((hostname, port))
File “C:\Python27\lib\socket.py”, line 224, in meth
return getattr(self._sock,name)(*args)
gaierror: [Errno 11004] getaddrinfo failed
>>>
***************************************************

From this, can you tell me what could be wrong, I assume it would be quite a simple oversight/ error?

Hopefully, this may help others in the same (how the hell do I get started) position!
Thanks
Mick

Incidentally, I am using a BEC from hobbyKing (I fly model aircraft) and It has a low voltage beeper on it, therefore get an indication when the 5v drops too low.

Sorry, I think I wasn’t clear enough in the raspberry_pi_camera_streamer instructions. It sounds like the camera streamer is working. It’s just that http://RASPBERRY_PI_IP_ADDRESS:8080/?action=stream won’t work in Chrome, in fact I’ve only tested it properly in Firefox…

Something like the following html file will hopefully work better in more browsers

Hope that helps. If there are problems, then you can download our SD card image and use it in a Pi with a camera, even when not attached to a robot. This should hopefully give a working example for a web page at least.

Regards

Alan

Any ideas?

PS maybe it’s a good idea to enable a bug tracker on bitbucket?