Hey, embedded system and electronics enthusiast, here is my top 5 resources list to get useful and interesting info on respective subject.

Hope it will help you too and will grow day by day.

1. Ben Eater — Youtube channel for electronics and hardware level coding.
2. Jeremy Blum — Youtube channel for beginners.
3. Hackster.io — Website for very cool electronics projects
4. Github — An Ocean of knowledge and sharing for network building and coding.
5. Mitch Davis — Youtube channel for embedded system.

Let me know your recommended resources in comments to guide others in this field.