4-Pin Photodiode Light Detection Sensor Module

The 4-Pin Photodiode Light Detection Sensor Module is a highly sensitive photosensitive module designed for precise ambient light and brightness detection. Unlike standard photoresistors (LDRs), this module utilizes a photodiode which offers directional sensitivity, faster response times, and superior accuracy in tracking light changes. It is an essential component for projects requiring reliable light-level triggering or continuous analog brightness monitoring.

This module features an onboard LM393 comparator integrated circuit that provides a clean, low-noise digital output (DO) signal with a driving capability of over 15mA. The digital threshold can be easily adjusted using the onboard multi-turn potentiometer. Additionally, the module provides a direct Analog Output (AO) pin, allowing you to read real-time voltage variations with microcontrollers like Arduino, ESP32, ESP8266, and Raspberry Pi for advanced light-intensity mapping.

Features:

• Directional Light Sensing: Equipped with a high-sensitivity photodiode that detects light from a specific direction, minimizing ambient interference.
• Dual Output Mode: Features both Analog Output (AO) for real-time voltage readings and Digital Output (DO) for threshold-based switching.
• Onboard LM393 Comparator: Ensures stable digital output signals with excellent noise immunity and a clean waveform.
• Adjustable Sensitivity: Built-in potentiometer allows precise calibration of the digital output trigger point.
• Status Indicators: Onboard power LED and digital output status LED make debugging and calibration quick and simple.
• Easy Mounting: Includes a pre-drilled bolt hole for secure installation in custom enclosures or robotic chassis.

Package Includes:

1 x 4-Pin Photodiode Light Detection Sensor Module