{"product_id":"lm393-light-control-sensor-module-3-3v-5v-adjustable-sensitivity-diy","title":"LM393 Light Sensor Module 3.3V-5V Adjustable Sensitivity DIY","description":"\u003ch2\u003eLM393 Light Control Sensor Module – Adjustable Sensitivity for DIY Electronics\u003c\/h2\u003e\n\u003cp\u003eTake your DIY electronics projects to the next level with this compact and versatile \u003cstrong\u003eLM393 Light Control Sensor Module\u003c\/strong\u003e. Operating across a wide voltage range of \u003cstrong\u003e3.3V to 5V\u003c\/strong\u003e, this module is compatible with Arduino, Raspberry Pi, and most popular microcontroller platforms. With both \u003cstrong\u003edigital and analog output\u003c\/strong\u003e, it gives you the flexibility to detect ambient light levels and trigger automated responses in your circuits.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Works reliably at 3.3V and 5V, making it suitable for a broad range of microcontrollers and development boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Sensitivity:\u003c\/strong\u003e Built-in potentiometer lets you fine-tune the light detection threshold to suit your specific environment or application.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Output:\u003c\/strong\u003e Provides both digital (DO) and analog (AO) output signals for maximum flexibility in your project design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM393 Comparator IC:\u003c\/strong\u003e Utilizes the industry-standard LM393 dual comparator chip for stable, accurate light-level detection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhotoresistor (LDR) Based:\u003c\/strong\u003e Uses a light-dependent resistor to measure ambient light intensity with high sensitivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD Construction:\u003c\/strong\u003e Compact SMD component layout keeps the module small and easy to integrate into tight builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus LED Indicator:\u003c\/strong\u003e Onboard LED provides instant visual feedback when the light threshold is triggered.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Ready:\u003c\/strong\u003e 4-pin interface (VCC, GND, DO, AO) for quick and easy wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V – 5V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e Digital (DO) + Analog (AO)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparator IC:\u003c\/strong\u003e LM393\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Photoresistor (LDR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e Adjustable via onboard potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × LM393 Light Sensor Module (SMD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino and Raspberry Pi light-sensing projects\u003c\/li\u003e\n  \u003cli\u003eAutomatic street light or lamp control circuits\u003c\/li\u003e\n  \u003cli\u003eSmart home and home automation systems\u003c\/li\u003e\n  \u003cli\u003eRobotics and obstacle\/environment detection\u003c\/li\u003e\n  \u003cli\u003eDIY electronics learning and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eLooking to expand your DIY crafting and making toolkit? Check out these popular picks from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads DIY Jewelry Making 100-200pcs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does the LM393 Light Control Sensor Module support?\u003c\/h4\u003e\n\u003cp\u003eA: The LM393 Light Control Sensor Module supports a wide operating voltage range of \u003cstrong\u003e3.3V to 5V DC\u003c\/strong\u003e, making it compatible with Arduino (5V), Raspberry Pi (3.3V), ESP8266, ESP32, and most other popular microcontroller and development boards.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the digital (DO) and analog (AO) outputs on this sensor module?\u003c\/h4\u003e\n\u003cp\u003eA: The \u003cstrong\u003edigital output (DO)\u003c\/strong\u003e sends a HIGH or LOW signal based on whether the detected light level crosses the threshold you set with the onboard potentiometer — ideal for triggering on\/off actions. The \u003cstrong\u003eanalog output (AO)\u003c\/strong\u003e provides a continuously varying voltage that corresponds to the measured light intensity, giving you more granular data for advanced applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I adjust the sensitivity of the LM393 Light Sensor Module?\u003c\/h4\u003e\n\u003cp\u003eA: Sensitivity is adjusted using the small \u003cstrong\u003eonboard potentiometer\u003c\/strong\u003e. Simply turn it clockwise or counterclockwise with a small screwdriver to raise or lower the light detection threshold until it responds to the ambient light level you need for your project.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The LM393 Light Control Sensor Module is fully compatible with \u003cstrong\u003eArduino\u003c\/strong\u003e, as well as Raspberry Pi, STM32, ESP8266, ESP32, and other 3.3V\/5V microcontroller platforms. Connect VCC, GND, DO, and AO to the corresponding pins on your board and you're ready to go.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does the LM393 Light Control Sensor Module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LM393 Light Control Sensor Module supports a wide operating voltage range of 3.3V to 5V DC, making it compatible with Arduino (5V), Raspberry Pi (3.3V), ESP8266, ESP32, and most other popular microcontroller and development boards.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the digital (DO) and analog (AO) outputs on this sensor module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The digital output (DO) sends a HIGH or LOW signal based on whether the detected light level crosses the threshold you set with the onboard potentiometer — ideal for triggering on\/off actions. 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