Basic Level
- Practical case: Basic Infrared Light Barrier
Master Analog Electronics by building a light beam alarm. Use a Photodiode to detect interruptions and trigger a 0.7V signal that lights up a security LED. - Practical case: Photodiode vs photoresistor comparison
Master Analog Electronics by comparing sensor speeds. Build a circuit using a Photodiode and LDR to observe sharp square waves versus slow voltage curves. - Practical case: Simple twilight switch
Learn Analog Electronics by building a dark sensor circuit. Use a Photodiode to switch an LED on when light drops, mastering transistor switching logic. - Practical case: Reverse Bias Photodiode Light Detection
Master Analog Electronics by building a light sensor circuit using a reverse-biased Photodiode. Measure linear voltage changes based on light intensity.
Medium Level
- Practical case: Modulated light audio receiver
Master Analog Electronics by building an optical audio receiver. Use a Photodiode and TIA to demodulate light beams into clear, isolated audio signals. - Practical case: Optical tachometer for DC motor
Master Analog Electronics by building a non-contact RPM sensor. Use a Photodiode to detect rotation and generate clean digital pulses for motor speed control.