One idea could be to get your dad a DIY electronics kit. There are various kits available that would allow your dad to build and customize his own electronic gadgets, such as a DIY Bluetooth speaker, a DIY synthesizer, or a DIY smart home automation kit. Another option could be to get him some high-quality electronic components that he can use to build his own projects, or a subscription to an electronics magazine or website that can provide him with inspiration and new projects to work on. You can also consider getting him a high-quality set of tools or a workshop membership that could help him with his DIY electronics projects.
Or you can get him a star map with the date when he welcomed you in this world.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.