Build a musical theremin
Green highlight

Musical Theremins create strange and out-of-this-world sounds. The examples here use a Photoresistor, aka Light Dependent Resistor (LDR). An LDR's resistance changes depending on how much light it "sees." Put one together and make some crazy music!

Orange shooting star
Download Guide
Collect Badge
grey blob
Challenge Image
Skill Badge
Table of Contents

Sensor Hacking

Step 1

Musical Theremins create strange and out-of-this-world sounds. The examples here use a Photoresistor, aka Light Dependent Resistor (LDR). An LDR's resistance changes depending on how much light it "sees." Put one together and make some crazy music!

Final steps

You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!

Complete & Share
Challenge badge placeholder
Challenge badge

Get 7 days of DIY for FREE!

Frequently Asked Questions

What is DIY.org?

What kinds of activities for kids are on DIY.org?

What are DIY.org courses for kids?

How do kids use DIY.org?

Are DIY.org activities safe for kids?

What ages is DIY.org best for?

How are courses different from activities?

Can parents track their child’s progress?

Why choose DIY.org over other activity or course sites?