Light Dependent Resistor and Piezo Buzzer Circuits

I facilitated an art and technology camp. The subject we explored was circuit building. We built our circuits using brads, paper clips, copper tape, a coin cell battery, a piezo buzzer, an LED, and a light dependent resistor. We built switches into our circuits to turn the buzzer and light source on and off. Depending on how much light is exposed to the LDR (light dependent resistor), the LED brightness changes and the piezo buzzer pitch changes. We incorporated our circuits into our own art projects.

The circuit

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