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Sensors
LDR / Photoresistor
Resistance changes with light intensity.
Definition
An analog component whose resistance drops as ambient light increases.
AI Application
Provides ambient-light context to AI models for smart lighting and energy-saving automation.
Parts & pins
1
VCC
5V power input
2
GND
Ground reference
3
DO
Digital output (HIGH/LOW)
4
AO
Analog output (0–Vcc)
5
Photoresistor
Resistance changes with light
6
Comparator (LM393)
Sets the digital threshold
Works with
Hardware you can wire this part to in a typical project.
