Photoresistor Course
Gain mastery in photoresistor circuits, covering core principles to exact light detection levels. Build and test LDR voltage dividers, transistor switches, and comparator circuits to effectively control LEDs and buzzers in practical electronics and sensing setups. Explore simulations with Falstad and LTspice alongside real-world testing for robust performance.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
This course equips you with hands-on skills to quickly design and test dependable LDR circuits. Learn basics of photoresistors, voltage divider circuits, transistor switching techniques, and accurate comparator settings. Validate using Falstad, LTspice simulations, and actual measurements. Includes step-by-step guides, safety advice, and fixes for reliable light-sensing LED and buzzer projects.
Elevify advantages
Develop skills
- LDR circuit design: Create accurate light-activated switches rapidly.
- Voltage divider adjustment: Establish clear dark-light levels using practical components.
- Transistor control: Select proper base and load elements for safe LED and buzzer operation.
- Comparator setup: Build sharp window comparators with hysteresis for photoresistors.
- Simulation validation: Test LDR setups via Falstad, LTspice, and hands-on lab equipment.
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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