I am currently learning electronics and would like to do some small projects that could expand my knowledge; what do you recommend?
If you're just starting out with electronics, I would recommend the following simple projects to help you build a solid foundation of knowledge:

1. Blinking LED: Start with the classic Hello, World! of the electronics world and learn how to control an LED using a microcontroller.
2. Light Sensitive LED: This project will help you understand how to use a photoresistor to control the brightness of an LED based on ambient light.
3. Temperature Sensor: Learn how to use a temperature sensor to measure the ambient temperature and display the value on an LCD screen or a serial monitor.
4. RGB LED Color Mixer: In this project, you will use three potentiometers to mix the red, green, and blue components of an RGB LED, allowing you to produce any color you desire.
5. Ultrasonic Distance Sensor: Build a device that uses an ultrasonic sensor to measure the distance to an object and display the value on an LED or an LCD screen.
6. Interactive Traffic Light: Simulate a traffic light with different LEDs and control the state of the light using buttons or a potentiometer.

These projects are a great way to get hands-on experience with basic electronics and microcontrollers, and they can help you build a foundation for more complex projects in the future.
This looks like a perfectly helpful answer.
I'm glad I could help! If you have any other questions, feel free to ask.