Photoresistor Course
Gain mastery over photoresistor (LDR) circuits, progressing from core principles to exact light detection thresholds. Learn to create and simulate voltage dividers, transistor switches, and comparator circuits that dependably control LEDs and buzzers for practical electronics and sensing projects. Ideal for building responsive light-triggered systems with professional reliability.

4 to 360h flexible workload
certificate valid in your country
What will I learn?
This course equips you with hands-on skills to design and test dependable LDR circuits efficiently. You'll cover photoresistor basics, voltage divider configurations, transistor switching techniques, and accurate comparator settings, then confirm performance using Falstad or LTspice simulations alongside actual measurements. Guided examples, safety advice, and troubleshooting steps enable confident creation of reliable light-activated LED and buzzer projects.
Elevify advantages
Develop skills
- Design LDR circuits to create accurate light-activated switches quickly.
- Tune voltage dividers for sharp dark-to-bright transition points using practical components.
- Drive transistors effectively by selecting base and load resistors for safe LED and buzzer operation.
- Build precise window comparators with hysteresis tailored for LDR applications.
- Validate circuit performance through simulations in Falstad or LTspice and hands-on lab measurements.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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