Further reading
The basics we have learned about up to now are available in the format of video tutorials on YouTube on my channel at https://www.youtube.com/watch?v=PITLKocdY14&list=PLiHa1s-EL3vhJTNPXOkjsWDes9cMZRolD. I have used Micro:bit V1 for recording the tutorials. However, they are not outdated. All the videos are consolidated into a single lecture at https://www.youtube.com/watch?v=YcHZj_B6X18. It will be worth exploring these tutorials.