The LDR Light Sensor Module for Arduino at STEAM Education is perfect for hands-on, project-based learning in robotics and coding for young innovators aged 4 and up. This module features a clean comparator output signal with good waveform and a driving ability of more than 15mA. It offers an adjustable potentiometer to fine-tune light detection brightness and operates at 3.3V-5V, providing digital switching output (0 and 1). With a compact PCB size of 3.2cm x 1.4cm and a fixed bolt hole for easy installation, this module uses a wide voltage LM393 comparator for optimal performance.