{"product_id":"ldr-sensor-module","title":"LDR Sensor Module","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cstrong\u003eLDR Sensor Module\u003c\/strong\u003e\u003cspan\u003e \u003cbr\u003eThe module's versatility comes from the LM393 Comparator chip. While the LDR itself provides a raw, changing resistance, the module translates this into two distinct signals: a continuous Analog voltage and a sharp Digital switch.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e \u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eWhy it’s a Smart Lighting Essential:\u003c\/strong\u003e\u003cspan\u003e \u003cbr\u003e• Dual Signal Processing: \u003cbr\u003eo Digital Output (DO): Best for \"All or Nothing\" tasks. You can set a brightness threshold using the onboard potentiometer. When it gets dark enough, the DO pin triggers a signal to turn on a lamp or sound an alarm. \u003cbr\u003eo Analog Output (AO): Best for precision. It provides a real-time voltage reading (0V to 5V) that reflects the exact light level. This is perfect for Solar Tracking or creating a dimmer switch. \u003cbr\u003e• Ambient Light Filtering: The sensor is designed to mimic the spectral sensitivity of the human eye, making it very reliable for detecting general room brightness or sunlight. \u003cbr\u003e• Onboard Potentiometer: This tiny blue dial allows you to calibrate the sensor's sensitivity without touching your code. You can manually set the \"Darkness\" level that triggers the digital output. \u003cbr\u003e• High Driving Capacity: The module can output up to 15mA, which is enough to directly drive a small LED or a signal to a relay without needing an external transistor.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e \u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eTechnical Capabilities:\u003c\/strong\u003e\u003cspan\u003e \u003cbr\u003e• Operating Voltage: 3.3V to 5V (Works with Arduino, ESP32, and Raspberry Pi). \u003cbr\u003e• Working Principle: Uses a voltage divider circuit. As light increases, resistance drops, and the voltage at the AO pin changes proportionally. \u003cbr\u003e• Stability: The LM393 chip ensures a clean, \"non-jittery\" digital signal even if the light level is right on the edge of the threshold.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e \u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003cspan\u003e \u003cbr\u003eThe LDR module is the primary choice for automatic night lamps, solar trackers, laser tripwire alarms, and display auto-brightness systems \u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"TinkEdge","offers":[{"title":"Default Title","offer_id":46404869718215,"sku":"TE-LIGSE-100","price":47.08,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6620\/6407\/files\/LDRSensorModule_1.png?v=1776662605","url":"https:\/\/shop.tinkedge.tech\/products\/ldr-sensor-module","provider":"TinkEdge","version":"1.0","type":"link"}