It should involve things such as description, s/w requirements, h/w requirements, schematics, usage etc.

Refer to the various Arduino project documentations for assistance.

You can write ✍️ 📖 for any topic that you want. It could be anything from data structures, algorithms, how to use some library, to how to resolve some issues, code examples etc. The PR should follow the contribution guide and it shouldn't be too long(around 1min read time) ⏳ .

Note that you will need to add your name as an author and the blog will be pub