Adafruit-circuitpython-ov5640

**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_OV5640/compare/1.2.2...1.2.3

What's Changed
* fix ev and white balance getters by FoamyGuy in https://github.com/adafruit/Adafruit_CircuitPython_OV5640/pull/33


**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_OV5640/compare/1.2.1...1.2.2

**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_OV5640/compare/1.2.0...1.2.1

Added auto focus control functions . The code was copied from adafruit_pycamera with minor changes to the timeouts.
The library is reaorganized as a "package" so the ov5640_autofocus.bin file could be included in the package.
There are no "breaking changes".

The usage is the same as for the pycamera library
To execute an autofocus:


cam.autofocus()

to set the focus to a fixed step (0-255)


cam.autofocus_vcm_step=step

new examples have been added. These examples are set up for a Raspberry Pi Pico with the OV5640 PiCowBell breakout board:
ov5640_jpeg_captutre_af.py
ov5640_jpeg_capture_manual_focus.py

Fixed the circup installation instructions in the README. Thanks FoamyGuy!

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-ov5640`.

Read the [docs](https://circuitpython.readthedocs.io/projects/ov5640/en/latest/) for info on how to use it.

Changes: https://github.com/adafruit/Adafruit_CircuitPython_OV5640/compare/1.1.14...1.1.15

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-ov5640`.

Read the [docs](https://circuitpython.readthedocs.io/projects/ov5640/en/latest/) for info on how to use it.