Jump to main content

Make a Digital Circuit Science Projects (7 results)

Create a tool, piece of art, or game that has a digital circuit that turns on or off according to a sensor (like an invader alert system that buzzes when someone comes in your room).

Green Technology: Build an Electronic Soil Moisture Sensor to Conserve Water
Science Fair Project Idea
Engineering Design Process
Water is a valuable resource, and water shortages are a serious problem in many parts of the world. The problem can be made worse by people who waste water; for example, by watering a garden or using sprinklers on their lawn (or a farmer taking care of an entire field) when it has rained recently or the soil is already moist. How can you help conserve water and prevent such waste? One way is to build an electronic soil moisture sensor. This project will show you how to build a circuit that… Read more
Build an Electronic Piano with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Lights and music make a great combination! Getting sound and lights to complement each other just right helps set the mood for everything from DJ parties and concerts, to theater shows, the circus, and ballet performances. You can put together your own lights and music show using a Raspberry Pi.    Check out the video to see what this simple, but fun, project looks like. Once you have the basics down, you can keep tinkering with the circuit, the sounds, and the program to make fancier versions… Read more
Make a Motion Sensor Alarm with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Have you ever wished you could create an alarm system to guard your stuff? Or what about throwing a surprise party for someone and automatically playing music and flashing lights when they walk in the door? You can do either of these things using a Raspberry Pi. The kit includes a motion sensor, which can detect when people move in front of it. Check out the video to see what this simple, but fun, project looks like. IMPORTANT: The instructions for this project were originally written using… Read more
Smart Medicine Cabinet: Build a Sensor That Reminds Patients When to Take Medication
Science Fair Project Idea
Scientific Method
Have you ever had to take prescription medicine to get over an illness? To get better, it is important to take the medication in the proper manner and at the proper time. Wouldn't it be cool if there were a tool or piece of automated equipment that held your medicine and reminded you to take it? A tool that would know when you picked up the bottle and took your medicine? Building a smart medicine cabinet is what this science project is all about! Read more
Construct a Carnival Buzzer Game with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Have you ever played a game that tested the steadiness of your hands? Operation® is a popular board game that requires you to perform "surgery" without bumping a tool against the edges of the game. There are also popular amusement park or carnival games where you try to move a metal loop along a wavy metal wire without letting the two touch. You can build your own version of these games using a Raspberry Pi. Check out the video to see what this simple, but fun, project looks… Read more
Invent an Interactive Toy with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Did you ever have a favorite toy like an action figure or doll that could light up, make noise, or move? This project will show you how to make your own interactive toy using a Raspberry Pi. Check out the video to see what this simple, but fun, project looks like. The version you make does not have to be a robot; it can be any shape and have any sound effects you want. IMPORTANT: The instructions for this project were originally written using Scratch 2 on a Raspberry Pi 3B+. If you are using a… Read more
Create Light Up Artwork with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Have you ever seen night lights that automatically turn on when it gets dark? What about art projects, like paintings or sculptures, with embedded lights? This project will let you combine the two, by adding lights to an art project of your choice. You can make the lights automatically turn on when it gets dark using a Raspberry Pi. Check out the video to see what this simple, but fun, project looks like. IMPORTANT: The instructions for this project were originally written using Scratch 2 on a… Read more
1

Explore Our Science Videos

Quick Links X
Top
Free science fair projects.