How to diagnose robot that stops working #26
Description
Here's a new problem: All of a sudden, for no apparent reason, when I power up my robot, it no longer works! It still presents its web interface and I can still select from all its behavior choices, but all I get on each of the behavior screens is the heading and the buttons. And the buttons don't do anything. The only thing that seems to be working is the inventor hat service. The green light still comes on and I can use the small white button to shut it down.
doug@HP-Laptop:~/Desktop/LRP3$ pyinfra inventory.py exec -- journalctl -u inventor_hat_service -f
--> Loading config...
--> Loading inventory...
--> Connecting to hosts...
[raspi4.local] Connected
--> Preparing exec operation...
[raspi4.local] Ready: shell
--> Beginning operation run...
--> Starting operation: server.shell (journalctl -u inventor_hat_service -f)
[raspi4.local] Oct 16 05:12:15 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:20 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:25 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:30 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:35 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:40 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:45 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:50 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:12:55 raspi4 robotpython[1516]: all/stop b''
[raspi4.local] Oct 16 05:13:00 raspi4 robotpython[1516]: all/stop b''
^CExiting upon user request!
--> Disconnecting from hosts...
^CExiting upon user request!
On the manual drive screen, there is no joystick control, just 2 buttons to start / stop the camera, and clicking on the start button does nothing. There is no camera image.
On the Distance Plotter screen, no distance plot.
I haven't found any behavior that still works.
How do I diagnose this?