Before you start the installation process, gather the following essential components: a light sensor module (LDR), a suitable microcontroller (such as an Arduino or Raspberry Pi), jumper wires for connections, a relay module if controlling high-power lights, and a power. Before you start the installation process, gather the following essential components: a light sensor module (LDR), a suitable microcontroller (such as an Arduino or Raspberry Pi), jumper wires for connections, a relay module if controlling high-power lights, and a power. The LDR light sensor module is capable of detecting and measuring light in the surrounding environment. The module provides two outputs: a digital output (LOW/HIGH) and an analog output. In this tutorial, we will learn how to use an Arduino and an LDR light sensor module to detect and measure the. In this beginner-friendly Arduino light sensor project, you will learn how to use a Light Dependent Resistor (LDR). By creating a voltage divider and and connecting the LDR to an analogue input on the Arduino Uno, you'll measure light levels and see results in real-time.
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