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Electricity & Electronics Project Ideas

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Showing 1 - 5 of 13 Project Ideas
Color Mixing with Red, Green, & Blue LEDs
Color Mixing with Red, Green, & Blue LEDs
Difficulty
Time Required Average (6-10 days)
Prerequisites To do this project you should be familiar with Ohm's Law. Experience building electronic circuits on a solderless breadboard is also helpful. The breadboard is the biggest expense, which can be used for future explorations in electronics.
Material Availability Specialty items
Cost Very High (over $150)
Safety Adult supervison required when using power drill.

This is a good project for someone who is interested in both electronics and color vision. The equipment needed is on the expensive side, but if you continue studying electronics, you can use it again and again. Read more
How Long Does It Take to Fry a Diode?
How Long Does It Take to Fry a Diode?
Difficulty
Time Required Short (2-5 days)
Prerequisites You need to understand both Ohm's Law and exponents to do this project.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended for oven calibration of the diode.

If you have ever built an electronic circuit with a soldering iron, you know that the component leads get hot. How much of that heat gets into the device you're soldering? This project shows you how you can use a silicon diode as a temperature sensor to find out. Read more
Linear vs. Logarithmic Changes: What Works Best for Human Senses?
Linear vs. Logarithmic Changes: What Works Best for Human Senses?
Difficulty
Time Required Short (2-5 days)
Prerequisites Understanding of Ohm's Law and an understanding of logarithms. Note: the biggest expense is a powered, solderless breadboard, which can be used for future explorations in electronics.
Material Availability Specialty items
Cost Very High (over $150)
Safety No issues

If you want to get your friend's attention at a crowded sporting event with lots of people cheering, you need to shout. If you're trying to do the same thing in a quiet library, a whisper works. The detection limit for each of our senses depends on the amount of "background" stimulation that is already present. This project uses an LED control circuit to investigate detection of changes in light levels. Read more
Make Your Own Low-Power AM Radio Transmitter
Make Your Own Low-Power AM Radio Transmitter
Difficulty
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety No issues

Have you ever wondered how an AM radio station works? In this project you will learn the basics of how your favorite songs are transmitted by a radio station. You will learn how you are able to tune to your favorite station and listen to music. This is a very simple project that requires very few materials to make, but it gives a basic knowledge of how a radio transmitter works. Read more
Measure Your Magnetism
Measure Your Magnetism
Difficulty
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items are needed. See the Materials tab for details.
Cost Low ($20 - $50)
Safety No issues

Do you know how to find the north and the south poles of a magnet? What materials are more magnetic than others? Is there a way to measure how strong a magnet is? Is there a way to measure the strength of an electromagnet? How much does the material that is in the core of the electromagnet affect its magnetic strength? With this project, you'll be able to answer these questions and many others. You will learn how to build and use a simple… Read more
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