RF433 json usermod

[kilrah]

Inspired by https://github.com/athom-tech/Sound-Reactive-WLED/tree/master/usermods/RF433
Modified to handle similar cases as other remote methods through json

Usermod for controlling WLED using a generic 433 / 315MHz remote and simple 3-pin receiver
See https://github.com/sui77/rc-switch/ for details

Build:
- Enable by defining USERMOD_RF433 in my_config.h
- Uncomment "sui77/rc-switch @ 2.6.4" in platformio.ini default env lib_deps section

Usage:
- Connect receiver to an interrupt-capable pin
- Set pin in Config->Usermods
- Info pane will show the last received button code
- See https://kno.wled.ge/interfaces/json-ir/json_infrared/ as reference to create a "remote433.json" file
and upload it to the ESP in http://ip/edit, the key for the actions is the button number retrieved from above.

[blazoncek]

Thank you.
Please provide a minimal "readme.md" to accompany the usermod similar as found in other usermods.
Please also revert changes in platformio.ini and add the information into platformio_override.sample.ini (and readme.md)

[DedeHai]

This looks like a great addition. Did you test it to work on all ESP variants?

A few suggestions:

• provide a list of compatible pins for all ESPs in the readme
• even better: restrict pin selection to compatible pins
• provide an example json file

[kilrah]

Did you test it to work on all ESP variants?

Tested on esp32, c3 and esp8266

even better: restrict pin selection to compatible pins

How can that be done? Believe it's all of them anyway

provide an example json file

No problem to just put one in the folder?

[DedeHai]

not sure how to restrict pins but I think AR usermod does it, maybe look at others for examples but I have seen UMs where unusable pins are red. In the deep-sleep usermod I just create a list but there I do not use 'pin' because already used pins can be repurposed, so not going through pinmanager.

yea, I would just put the example json in the usermod folder, easier to find than going through KB and download an IR remote file.

[blazoncek]

FYI you cannot restrict GPIO in usermods. Not yet.
Existing restrictions come from used pins.

[kilrah]

I looked around and at least for ESP32, S3 and 8266 all pins can be used as interrupts so there should not be any restriction.

[kilrah]

There, hopefully that's fine... I changed the default_env in platformio_override.sample.ini because the existing one doesn't exist anymore and so just copying the whole sample would break.