I'm pursuing a degree in electrical engineering but bought one of these Microcontroller boards to mess around with. This is a kit with components to get started. It's a Raspberry Pi Pico, but it's not a full computer like the original Raspberry Pi. It has a whopping 264k of RAM and 2MB (yes, megabytes) of flash memory and you need a PC to program it. They require such low power that they can be powered by two AA batteries. The boards themselves cost $4 each or $6 for the WiFi version. Some people did some really cool stuff with it such as building a drone (using a 3D printer to make the body).
https://www.amazon.com/dp/B09TZZ6XH3?ref=ppx_yo2ov_dt_b_product_details&th=1