Added an HTTP example for the Galactic Unicorn

[ahnlak]

Inspired somewhat by #647, I've put together a basic "grab a quote from the Internet and display it on the Unicorn" type example.

I've endeavoured to keep it close in format to the other examples, and commented the code to hopefully make it intelligible to others (or at least, as intelligible as it's possible to be with lwIP code!)

You need to include -DPICO_BOARD=pico_w to cmake in order to be able to pick up the WiFI-related libraries.

You also need to include -DWIFI_SSID="ssid" and -DWIFI_PASSWORD="password" to provide suitable WiFi credentials (although I do have a functioning example of providing this through a mounted USB drive, it's ... a much bigger bit of work!)

Hopefully of some interest?!

[Gadgetoid]

Of great interest, thank you!

I'm actually hoping to give both Galactic and Cosmic Unicorn the same treatment as Badger 2040 - ie: moving them and their examples to another GitHub repository where firmware, examples and documentation will be easier to find.

As such I'm not in a tremendous hurry to merge this, but it will be very valuable as a test case for the new repository.

[ahnlak]

Makes a lot of sense for the Unicorns to get the Badger treatment.

Although, on reflection this stuff is PicoW-related rather than Unicorn specific, so I'm wondering if there's a more rational place for it (and also the USB Mass Storage thing if I ever lick it into a comprehensible state!)?

[Gadgetoid]

Probably wouldn't hurt you to throw it in its own repo using our Pico Boilerplate, and we can link to it from there?

If you get the FAT stuff working you can ship a .uf2 and we can link it from the product page(s) too. Since I guess that means the user can config WiFi over USB?

As much as I love contributions, stuff tends to get absolutely lost in this havoc of a repository and I'd rather projects like yours thrive and get some attention rather than die in a cold, dark corner with a billion other examples.

[ahnlak]

That's precisely what set me off down that rabbit hole, yeah - my "improved" Unicorn clock does exactly that; gives you a CONFIG.TXT to edit to get the WiFi playing nicely.

I need to turn that into boilerplate-y thing for future projects too (hmm, can boilerplates be based on boilerplates?) and it probably makes sense to roll some HTTP stuff into that given that it's all very WiFi-centric.

Will ping you when it's fit for consumption :)

[kfarr]

+1 I really like the idea of moving GU + CU examples off to another repo. I have a few improvements to the cosmic_paint.py file such as displaying IP address on the device when connected (instead of just through logs) but it seems like it would just get lost in this mega repo

[ahnlak]

Quick follow-up to this; I've rebuilt this example into it's own repo at https://github.com/ahnlak-rp2040/gu-scrolling-quote - it's based off a more comrehensive PicoW boilerplate that bakes in the filesystem and a simple http(s) client :-)