Issues with Nano ESP32

[brendanm250]

The Nano ESP32 doesn't appear to like the use of the ledc functions. I was able to make it work as intended by removing the checks for #if defined(ESP32) and the associated code.

[RonaldJair19]

Hello, the library is out of date. Migrations need to be done: https://github.com/espressif/arduino-esp32/blob/master/docs/en/migration_guides/2.x_to_3.0.rst#ledc