https://www.bleepingcomputer.com/news/microsoft/get-95-percent-off-the-complete-raspberry-pi-hacker-bundle-deal/

In this deal you get access to 4 courses on how to get started and program using the Raspberry Pi, NodeMCU, and more. This course is normally priced at $384, but has been discounted 95% as part of this deal to $19.

This course comes with a 15 day satisfaction guarantee. If you're unsatisfied for any reason, just contact Stackcommerce and they will issue a full store credit within 15 days of purchase.