Using M118 for HTTP communication
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Hi,
I'm not sure if I'm posting into the right category or even to the right site but here goes...
I've put together an ESP-32 CAM system to monitor active printing on a RepRap system.
The camera runs a server and if an external client accesses a particular URL, a screen capture is made and the image is stored for later creation of a time-lapse video.
I want to take a shot at each layer change and so I need the printer to trigger this at the correct moment. This is easy to achieve in Cura by planting specific g-code at the end of each layer but what g-code would communicate with the camera?
My thought would be to use the M118 messaging command along the lines of:
M118 P3 S"GET http://192.168.1.129/Capture HTTP/ 1.1"
The P3 option purports to send a message to HTTP but I don't really understand what this means and how to format such a message that the camera server could receive and act upon.
I don't want to connect wires between the printer and camera for triggering if I can help it.
Thanks for any suggestions.
