The photoresistor sensor module includes a LDR (light-dependant resistor) in series with a 10K resistor. The AO pin is connected between the LDR and the 10K resistor. The voltage on the AO pin depends ...

LDR (Light-Dependent Resistor) Module or, photoresistor, is a type of resistor where resitant value change with intensity of light. This module has 4 pin: VCC GND DO (Digital) AO (Analog) Digital ...

Light sensor Dark sensor. Light and dark detection using an LDR. For this project, let’s stick to the LDR sensor module so we can select the light or dark detection by placing jumpers. We’ll be using ...

Arduino BH1750 Ambient Light Sensor Circuit Diagram. The circuit diagram to connect BH1750 Light sensor with Arduino is shown below.. I2C communication pins SDA and SCL of BH1750 are connected to ...