{"product_id":"red-led-indicator-module-digital-output-arduino","title":"Red LED Indicator Module — Digital Output, Arduino","description":"\u003ch2\u003eRed LED Indicator Module — Digital Output, Arduino (KY-011 Compatible)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ered LED indicator module\u003c\/strong\u003e is the simplest and most beginner-friendly LED component for Arduino projects. Unlike bare LEDs that require a separate current-limiting resistor and careful wiring, this module has the \u003cstrong\u003ecurrent-limiting resistor pre-installed on the PCB\u003c\/strong\u003e — simply connect VCC, GND, and a digital output pin, and the LED is ready to use with no additional components required.\u003c\/p\u003e\u003cp\u003eCompatible with the popular \u003cstrong\u003eKY-011 LED module\u003c\/strong\u003e pinout, this module integrates directly into Arduino sensor kits and 37-in-1 sensor kit projects. The 3-pin module format is breadboard-compatible and fits standard Arduino sensor shield connectors.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-installed current-limiting resistor\u003c\/strong\u003e — no external resistor required; connect and use immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKY-011 compatible pinout\u003c\/strong\u003e — direct integration with Arduino sensor kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital control interface\u003c\/strong\u003e — on\/off control via single Arduino digital output pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-pin module format\u003c\/strong\u003e — VCC, GND, Signal; breadboard and sensor shield compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED color\u003c\/strong\u003e — universal stop\/error\/alert indicator color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V and 5V compatible\u003c\/strong\u003e — works with Arduino, ESP32, and Raspberry Pi\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use with Arduino\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConnect \u003cstrong\u003eVCC\u003c\/strong\u003e to Arduino 5V (or 3.3V)\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eGND\u003c\/strong\u003e to Arduino GND\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eSignal\u003c\/strong\u003e to any Arduino digital output pin\u003c\/li\u003e\n\u003cli\u003eSet the digital pin \u003cstrong\u003eHIGH\u003c\/strong\u003e to turn the LED on, \u003cstrong\u003eLOW\u003c\/strong\u003e to turn it off\u003c\/li\u003e\n\u003cli\u003eNo resistor required — the module PCB includes the current-limiting resistor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino beginner projects\u003c\/strong\u003e — the easiest LED module for first Arduino projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus and error indicators\u003c\/strong\u003e — red LED for fault, error, and alert indication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino sensor kit projects\u003c\/strong\u003e — KY-011 compatible for 37-in-1 sensor kit projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotics and automation\u003c\/strong\u003e — fault and status indicator LEDs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational electronics kits\u003c\/strong\u003e — STEM and electronics learning projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Color:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e Digital (HIGH = on, LOW = off)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e 3-pin (VCC, GND, Signal) — KY-011 compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3.3V – 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard Resistor:\u003c\/strong\u003e Yes (no external resistor required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Keszoox\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45672625996011,"sku":"","price":8.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LED-Red-Indicator-Module.jpg?v=1723008343","url":"https:\/\/keszoox.com\/products\/red-led-indicator-module-digital-output-arduino","provider":"Keszoox","version":"1.0","type":"link"}