General project feasibility question here - please take it easy on me as I have limited experience with micro controllers and limited understanding of what is possible - but I am keen to learn and want to have some fun.
I do a lot of fishing, and have thought of making a waterproof camera that could be put down to 50-100m depth on a cable to look at the conditions on the lake / sea floor.
I understand that there will be high pressures with waterproofing and sealing of connections required, I can sort this elsewhere - my questions are regarding the electronics side specifically.
The idea would be to have an image sensor (digital camera), 6-10 leds (for illumination) and a temperature sensor together on the end of a 100m cable - feeding back video stream (and temp readings) to a 'box' at surface - with output to be viewed on a screen (possibly on laptop or smartphone). Would be good to be able to adjust brightness of LEDs at surface also.
Any suggestions on how this could be best approached? I am thinking that this could be effectively controlled by a micro controller, setup but perhaps I am wrong. If so, please let me know how other people manage these types of systems.
Will the 100m cable length between sensors and surface be an issue?
I see that there are many similar systems on the market available to buy... however these all seem to use analogue video / traditional signal and connections, and I would prefer to do use a 'digital' based camera as there are potential further benefits to digital image processing if this was to be taken further (I think).
Please let me know if anyone has any thoughts on this!