Photoresistor Course
Gain expertise in photoresistor circuits, progressing from core principles to exact light detection thresholds. Build and simulate LDR voltage dividers, transistor switches, and comparator circuits that dependably power LEDs and buzzers for practical electronics and sensing tasks in real-world setups.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course equips you with hands-on skills to create and test dependable LDR circuits efficiently. You'll master photoresistor basics, voltage divider setups, transistor control, and accurate comparator levels, then confirm performance using Falstad, LTspice, or actual tests. Guided examples, safety advice, and fix-it tips enable confident construction of reliable light-activated LED and buzzer projects.
Elevify advantages
Develop skills
- Design LDR circuits to craft accurate light-activated switches quickly.
- Tune voltage dividers for sharp dark-to-light switch points using practical components.
- Drive transistors by selecting base and load elements to control LEDs and buzzers securely.
- Set up comparators with hysteresis for stable LDR-based threshold detection.
- Validate circuits through simulations in Falstad or LTspice plus hands-on lab measurements.
Suggested summary
Before starting, you can change the chapters and 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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