Trigger Z-Cam from EspLog

cabinlab commented 1 year ago

Triggering EspLog from zcam could be possible over wifi.

Check what your browser shows when you navigate to http://\<IP address of z-cam>/ctrl/mode?action=query

Originally posted by @VladimirP1 in https://github.com/VladimirP1/esp-gyrologger/issues/2#issuecomment-1321236499

The Z-Cam can be controlled multiple ways. The DJI RS2 controls it through the COM port. Pretty sure the Zhiyun Weebill S I used to have used the USB-C. The Flowshutter documentation says it uses UART, but dosn't specify a particular port.

Then there's Ethernet and WiFi. It would be nice to be able to choose from more than one option. For example, I currently have an RS2 connected to the COM, so I can't connect anything else there. And I'm currently using WiFi to stream the video feed. I happen to have the WiFi connecting through a router, so I could put the EspLog on the same network, and that should still work. But maybe there are other use cases where WiFi wouldn't be ideal. I'm not sure.

cabinlab commented 1 year ago

Over WiFi, this is the JSON from /ctrl/mode?action=query:

{"code":0,"desc":"","msg":"rec"}

cabinlab commented 1 year ago

There's also a mention of some kind of websocket notification interface, but this https://github.com/imaginevision/Z-Camera-Doc/blob/master/E2/protocol/http.md#Asyc-notification . If you can save the web page from the camera they are talking about, this could be useful

CONNECTING: WS://10.98.33.1:81/WWW/HTML/CONTROLLER.HTML

CONNECTION READY

    {
   "what": "TempUpdate",
   "value": 26
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 19
}   

    {
   "what": "ConfigChanged",
   "key": "battery_voltage",
   "value": "80"
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 20
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 21
}   

    {
   "what": "TempUpdate",
   "value": 26
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 22
}   

    {
   "what": "RecStarted"
}   

    {
   "what": "RecUpdateRemain",
   "value": 223
}   

    {
   "what": "RecordingFile",
   "value": "A001C1809"
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 23
}   

    {
   "what": "RecUpdateDur",
   "index": 8,
   "value": 1
}   

    {
   "what": "RecUpdateDur",
   "index": 1,
   "value": 1
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 24
}   

    {
   "what": "RecUpdateDur",
   "index": 8,
   "value": 2
}   

    {
   "what": "RecUpdateDur",
   "index": 1,
   "value": 2
}   

    {
   "what": "TempUpdate",
   "value": 26
}   

    {
   "what": "ConfigChanged",
   "key": "battery_voltage",
   "value": "80"
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 25
}   

    {
   "what": "RecUpdateDur",
   "index": 8,
   "value": 3
}   

    {
   "what": "RecUpdateDur",
   "index": 1,
   "value": 3
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 26
}   

    {
   "what": "RecUpdateDur",
   "index": 8,
   "value": 4
}   

    {
   "what": "RecUpdateDur",
   "index": 1,
   "value": 4
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 27
}   

    {
   "what": "RecStoped"
}   

    {
   "what": "RecUpdateRemain",
   "value": 223
}   

    {
   "what": "TempUpdate",
   "value": 26
}   

    {
   "what": "RecUpdateDur",
   "index": 4,
   "value": 28
}   

CONNECTION CLOSED!

cabinlab commented 1 year ago

Combining the two, http://host/ctrl/rec?action=start corresponds with:

    {
   "what": "RecStarted"
}

Then stop recording, http://host/ctrl/rec?action=stop with:

    {
   "what": "RecStoped"
}

VladimirP1 commented 1 year ago

Oh, cool, so it is possible to get the file name and name the log file accordingly. But I'll have to think how to make it work and still have the functionality to auto-delete oldest logs. Probably I can just store the file name in a separate file or even inside the log file

VladimirP1 / esp-gyrologger

Trigger Z-Cam from EspLog #12