Video tutorials

During this course, we expect the following from you:

• Ask questions when you are curious or need help.

• Don’t be afraid to make mistakes - this is how you learn.

• Share your ideas, help others, and be open to receiving help.

• Listen carefully when the teacher is speaking - it’s important for everyone.

• Read your lesson before coming to class.

Ask questions!

The teacher does not expect you to know everything. What matters is that you ask when you don’t understand something. Go to your teacher when you need help - they can support you only if you ask.

It’s okay to make mistakes

It’s normal not to succeed the first time. Learning takes practice. Keep trying, testing, and improving your solution until you succeed.

Work as a team

The whole class is a team. Help each other, share ideas, and learn together. It’s okay to give hints or learn from others - this helps everyone improve.

Listen when the teacher speaks

When the teacher is explaining something, it is important for everyone. You might hear a solution to a problem you will face later.

Prepare before class

You will have access to e-textbooks that you can read at home on a phone, tablet, or computer. Try to think about the tasks in advance so you are ready to work during the lesson.

Here’s a list of all the tools you’ll need to build the DIY Rotating LED Clock Display. Each tool links to Amazon. If a link isn’t available, we’ve included tips on how to find another one.

Here’s a list of all the parts you need to build the DIY Rotating LED Clock Display. Each part links to Amazon. If a link doesn’t work, don’t worry - we’ve also added tips on how to find a replacement.

Resistors are essential electronic components that limit the flow of electric current in a circuit. Because they’re so small, their resistance value (measured in ohms, Ω) is usually marked with colored bands instead of numbers. Here's how to read them:

What Is a Hall Effect Sensor?

A Hall Effect Sensor is a small electronic component that detects magnets. When a magnet comes close, it sends a signal to other devices, like an Arduino or an LED light. Think of it as a tiny switch that turns on whenever a magnet is nearby.

If you don’t rotate an object around its center of mass, it becomes unstable - causing vibrations, extra stress, and sometimes complete system failure.

You’ve probably seen a spinning fan or display with LED lights that forms text or images in mid-air — it looks like magic! But what’s really happening?

This amazing effect is based on a concept called Persistence of Vision (POV). When an LED strip spins fast enough and its lights turn on and off at just the right times, your brain blends those quick flashes together. The result? You see a complete image - even though it’s really just a single line of lights moving in circles!