Hello friends, I hope you all are doing great. In today’s tutorial, we will have a look at What are Light Sensors and how to use them. Light sensors are such components that sense the surrounding light and transform it into the current. Such sensors are normally used in different applications such as switching circuits and for security purpose. When they used in different security circuits these sensors detect the variation in the light then they send the signal to the alarm. Libraries Light Sensor Simulation Libraries Light sensors: LDR · BH1750 · TCS34725 Helping Tools Serial Monitor Advance : a serial terminal window for the UART of your board Serial Monitor Expert : the serial monitor with extra debugging tools LCD Library for Proteus V3.0 : 16x2, 20x4 and I2C LCDs to show your reading ...