What type of tools do I need to make a wireless camera?

Projects General Guidance
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The raw image\file transfer code is published here for LoRa;

Integrating that code into a working application, where you can easily control the LoRa parameters in order to optimize transfer times is taking a while, its not ready to publish yet.

There is code to display JPG images from the ESP32CAM on a TFT in the TFT_eSPI library.

Transferring ESP32CAM JPGs might in itself sound easy, but RF is never 100% reliable and a single bit error can corrupt the image so you do need a fairly robust transfer application if you want clean pictures.

However my main intent is to have a image transfer system that can be used over many kilometers with cameras maybe in inaccessible positions.

For short distance use, 3-5metres, the ESPNoWCam app looks ideal and avoids the classic issue of the ESP32CAM being short of pins.

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If this is really serious, you need to verify communications with all those locations before spending time, effort and money on the rest of the project.

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Yep, fully aware of the need to test links etc, done lots of that over the years since LoRa was invented.

Just working on a LoRa link tester that will enable you to put a node somewhere remote and work from a distant receiver for a particular set of LoRa parameters, how much RF power is needed to make the link work . This removes the guesswork you might engage in using just RSSI and SNR readings.

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