Optical Theremin
Project 5 out of 18
Create a functional instrument that can be played without a touch.
Order NowA theremin is an electronic instrument that is controlled without physical contact by the user. You’ll use the skills that you learned at the beginning of the Electronics Course to make this DIY Optical Theremin because the setup for the hardware of this instrument is similar to the setup you used for the Mood Lamp. You’ll learn about variable resistance and what potentiometers do and how to incorporate it into the project. Then, you’ll complete the program by filling in the blanks on the sketch to make your instrument playable. After you’re done making the DIY Optical Theremin, learn how changing values of frequency in the code changes the project and use the LDR to determine tempo instead of pitch. Make some music!
What you'll receive in the Optical Theremin project kit:
10K Potentiometer
Light Dependent Resistor (LDR) (2)
10K Ohm Resistor 1/4W
Buzzer
Breadboard
Jumper Wire (9, 2 extras)
UNO R3 (Arduino-compatible
USB Cable
Level up your understanding of how changing your code affects the functionality of a circuit. Make music by building your own DIY Optical Theremin.
Electronic Components. Discover what a potentiometer is and what it does.
Circuitry Get the basic schematic of where items go on your breadboard and finish it using your skills.
Programming Apply your understanding of C++ by completing the unfinished code that we give you.
Milestones Unlocked
Electronics
Circuitry
Programming (C++)
Variable Resistance
Course Progression
Lesson Preview
Finish making your DIY Optical Theremin and then put your skills into practice by completing these exercises:
- Change values for frequency in the code.
- Make the LDR determine the tempo instead of the pitch.
- Calculate the tone that the UNO R3 will produce.
You’re up to the challenge!
Electronics Course
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18 Projects
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Ages 12+
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