Check out the oss project [autofocus](https://github.com/uptake/autofocus https://github.com/uptake/autofocus) used by the Chicago zoo to operate camera traps.

Check out the oss project [autofocus](https://github.com/uptake/autofocus https://github.com/uptake/autofocus) used by the Chicago zoo to operate camera traps. Could be useful for you too!