GitLab

* ADD: heltec wsl v3 pinout information

Information based on website and s3 manual

* UPD: heltec wsl v3 pinout

ADD: proper versioning to the definition (added v3)
FIX: TX/RX inversion.
UPD: analog pins to be defined as a consecutive numeration.

* UPD: heltec wsl v3 pinout 

FIX: number of digital pins.