Support for DFRobot Beetle ESP32C3.

[tyeth]

See adafruit/Wippersnapper_Boards#195

[tyeth]

As noted in discord, it won't yet build in CI for the dfrobot due to not having an entry here: https://github.com/kbsriram/Adafruit_Wippersnapper_Arduino/blob/main/.github/workflows/build-clang-doxy.yml#L320
and the .test.skip for the debug example folder, and .generate for the demo example folder (like qtpy does)
[21:44]Tyeth: Oh sorry, and in the same github actions file just beneath add these two for your board too: https://github.com/kbsriram/Adafruit_Wippersnapper_Arduino/blob/main/.github/workflows/build-clang-doxy.yml#L328-L329

[tyeth]

Nice one @kbsriram , looks like it's building fine now. If you download the build files, then extract the dfrobot zip, then use the combined.bin to flash to the board at offset 0x0 with esptool, that will recreate the web flashing process.
You can use this page to do the flashing, just update the write/upload offset address from 0x1000 to 0x0
https://tyeth.github.io/read-partitions-esptool-js/

[kbsriram]

Thanks @tyeth for the help with the Arduino board definition!

The CI built artifact seems to be running ok from my quick tests - added some log output here as well. https://gist.github.com/kbsriram/1427997c393cb39cff2d03158413b102

[tyeth]

Excellent! Have you managed to test any components yet (you did mention basic pin tests), like the built in button/LED, and more interestingly any I2C devices?

[kbsriram]

I tested a few, mostly to confirm pin assignments - these checks seemed to be working for me:

• tested all digital pins (except for pads on the back) as outputs and PWM outputs (via "dimmable LEDs")
• tested internal LED and button
• tested I2C to the extent that a scan from AIO shows the right device on the bus (the ones I have at hand don't have an existing integration)

[tyeth]

Oh brilliant, thanks! Please do mention which I2C devices you have (for our interest and future consideration), but you can also register feature requests for them if desired (or add the component definition and driver wrapper - it's mostly the arduino driver example broken into wrapper methods ✍️ ).
I'll test the I2C stuff tomorrow, but expect no issues. This will be released probably as part of some other changes in the next fortnight, rather than on it's own (as you already have it up and running). Thanks again for your contribution!

[kbsriram]

Awesome (and thank you again for all the help!)

Re: I2C - just some modules I had at hand for testing than an actual need - an FM transmitter and an Si5351. Will definitely continue exploring and add to the components list as they come up!

[brentru]

Noting that we're asking dfrobot about the commented out .board but do not expect a response
espressif/arduino-esp32#6883