Docs on I2C on the Raspberry Pi are outdated about docs

[jellyfish-bot]

[lmbarros] This has attached https://jel.ly.fish/2c01bec6-5d4a-4c5b-9668-9e5fdee085d0

[vipulgupta2048]

Thanks @lmbarros for pointing this out. Maybe we can work with @acostach to figure out the best way to modernize these examples. @acostach What do you think the improvements can be?

[acostach]

@vipulgupta2048 why not link to https://github.com/balena-labs-projects/balena-sense ? It's modern and updated, supports a variety of i2c sensors and is multi-container too

[vipulgupta2048]

Sounds good to me! @acostach Let's do that, will you make the PR?

[lmbarros]

balena sense would be a better example than the one we currently provide, for sure.

FWIW, last Friday I started a little experiment to try these things out myself. For now it is not a good example to share (not documented, and I still have doubts about how it really works), but maybe someday it can become a more focused I2C example. I mean, IMHO, balena sense may be a bit too big as an I2C example. (For example, if you look at the docker-compose.yml , how do you know if some config is required to support I2C or something else used by the project?)

[acostach]

@lmbarros your project doesn't look far from being used as a focused example. Looking at balena-sense's docker-compose I believe privileged was used to allow for the sensors to be used with any device-type, regardless of the i2c busses used. Anyway, I opened #2723 to link to it until a more focused example will be available.