As I mentioned in part 9, I completed the main circuit board and began testing. I’m having two issues: (1) once it begins turning, the stepper motor won’t stop; and (2) the lamp LED turns on won’t turn off.
Here is the sequence of steps.
The server indicates that it has started the motor running forward, and the motor does indeed start running.
If I click Reverse, the motor reverses and continues running.
When I click Stop, however …
A blank line appears on the server log, and the server becomes non-responsive. The motor continues to run, and the server will not respond to any further commands from the client.
At this point I have to manually shut down the server app.
The relay is connected to pin #2 on the Raspberry Pi, which is always high, no matter what the server software says. I’m not sure what is going on with this. It’s also possible I have something wired improperly.