Remote SLR camera control either IR or Cable

[jimhiggs]

Great project very professional. I am looking for a turntable design using an esp32 / stepper motor and came across your project. I am going to use a canon T3i DSLR for photogrammetry. If I read it right you provide Bluetooth Camera control. For DSLR I would need either cable or IR control. I could probably fork your code and add cable control fairly easy. I have also considered using a couple of older android phones I have laying around to do a stereo image but would need to research that option first. Can a bluetooth solution pair with multiple phones at once? Probably not on older phones/bluetooth versions.

[JoJos1220]

Hi @jimhiggs ,
thank you for pointing your input to this kind of project.

Well, to support a huge range of devices i decided in the design-phase of the project to focus on the Bluetooth connection between ESP32 <--> Smartphone as Camera device... I NEVER thought about more professional SLR cameras...
To take the wind out of the sail, i had also never tried Multi-Pair more then one Bluetooth devices to the ESP32. After some resarch it SHOULD be possible, but i have also never tried that one out and i think the current codebase will not support it.

After more research, i guess the simplest solution is using an 3rd party lib and integrate it in the toggleScreenshot() Method within the main.cpp file of my code. If the solution is then focused on a wired or IR integration, i guess it does not matter. Also the selected Hardware gives a lot of play-room for that. Maybe you can do an prototyping built on that, to figure out the best solution for you - the integration in the given TurningTurnTable Project should not be a big mess then anymore. To stay consistent i would merge the code base then back to the main project via PR.

For totally simple workaround i can suggest also to select the BOARD_LED Pin to an not used spare IO. If you can hardwire that Signal to an remote control, on each screenshot it will be triggerd then for a couple of seconds and you should also got the images on each rotation angle...

[jimhiggs]

Thanks for the reply . I will try your simple workaround.

[JoJos1220]

Okay, give it a try!
Further Features could be implemented in a future release if the need for it is still given.

Maybe you can let me know if this workaround solution is working for you!