General Help or Diagnosis

[quatre432]

I am generally new at python, but im trying to get cozmars working the html doesn't seem to do anything doing a basic connection from my pc doesn't seem to change anything my screen is just showing cozmars 37d0 on boot up and doesn't change

I'm not sure if i don't have things plugged in right or maybe something is wrong on my install on pi can anyone give me any tips for diagnosis

Another a little investigation on Robot connection through python or html this error is returned

[2021-10-26 07:12:15 -0900] [877] [INFO] connection open [2021-10-26 07:12:25 -0900] [877] [ERROR] Exception occurred while handling uri: 'ws://192.168.0.181/rpc' Traceback (most recent call last): File "/usr/local/lib/python3.7/dist-packages/sanic/app.py", line 891, in _websocket_handler await fut File "/usr/local/lib/python3.7/dist-packages/rcute_cozmars_server/main.py", line 83, in rpc await RPCServer(ws, cozmars_rpc_server).run() File "/usr/local/lib/python3.7/dist-packages/wsmprpc/server.py", line 27, in run async for data in self.ws: TypeError: 'async for' requires an object with aiter method, got WebsocketImplProtocol

[hyansuper]

TypeError: 'async for' requires an object with aiter method, got WebsocketImplProtocol

seems the error has to do with websockets, try reinstall websockets on your pi by sudo python3 -m pip uninstall websockets; sudo python3 -m pip install websockets

On your pi, disable cozmars server by sudo systemctl disable cozmars.service then you run the script https://github.com/hyansuper/wsmprpc/blob/master/examples/server_test_sanic.py and then from your PC run https://github.com/hyansuper/wsmprpc/blob/master/examples/client_test.py, see if any error occur from your pi or PC remember to change the address at https://github.com/hyansuper/wsmprpc/blob/master/examples/client_test.py#L5 to your pi's address

[hyansuper]

my screen is just showing cozmars 37d0 on boot up and doesn't change

that's not an error, 37d0 is your robot's serial code. the robot does not do any thing unless you control it

[quatre432]

Thanks for the response i ran the script on the pi and tried both your script and the client test on the client test i recieved this response on the pi

[2021-11-06 14:37:06 -0500] [1379] [INFO] connection open [2021-11-06 14:37:06 -0500] [1379] [ERROR] Exception occurred while handling uri: 'ws://192.168.0.181:8000/' Traceback (most recent call last): File "/usr/local/lib/python3.7/dist-packages/sanic/app.py", line 891, in _websocket_handler await fut File "server_test_sanic.py", line 48, in home await RPCServer(ws, SimpleHandler()).run() File "/usr/local/lib/python3.7/dist-packages/wsmprpc/server.py", line 27, in run async for data in self.ws: TypeError: 'async for' requires an object with aiter method, got WebsocketImplProtocol

which is more or less what i got before , i have uninstalled websockets and reinstalled them, its on version 10.0 if it helps

[hyansuper]

Try the very basic server - client example from https://websockets.readthedocs.io/en/stable/ If it produce the same error, you can seek help at https://github.com/aaugustin/websockets

[quatre432]

Thank I Have tried there basic server and client and they work successfully without error

[hyansuper]

I can't reproduce the error, I suggest you clone the latest code on pi

git clone https://github.com/r-cute/rcute-cozmars-server.git
cd rcute-cozmars-server
sudo python3 -m pip install -e .
sudo systemctl restart cozmars.service

if the same error shows again, try edit you file /usr/local/lib/python3.7/dist-packages/wsmprpc/server.py and change line27 into the following 2 lines

            while True:
                data = await self.ws.recv()

[quatre432]

Thanks changing that code seems to make it respond properly now, screen and servos work but not motors or sound im going to make sure they are on the correct pins though