{"product_id":"ky-011-two-color-red-green-5mm-led-module-for-arduino","title":"KY-011 Two-Color Red \u0026 Green 5mm LED Module for Arduino","description":"\n\u003ch2\u003eKY-011 Two-Color Red \u0026amp; Green LED Module for Arduino\u003c\/h2\u003e\n\n\u003cp\u003eBuy the \u003cstrong\u003eKY-011 Two-Color LED Module\u003c\/strong\u003e online in Pakistan from \u003cstrong\u003eRobostan.pk\u003c\/strong\u003e. This compact dual-color LED module is designed for Arduino, Raspberry Pi, ESP32, robotics, electronic status indicators, and DIY electronics projects.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eKY-011 Bi-Color LED Module\u003c\/strong\u003e features a 5mm LED package containing two separate light-emitting elements: one red and one green. Both LEDs share a common cathode, allowing them to be controlled independently through compatible microcontroller output pins.\u003c\/p\u003e\n\n\u003cp\u003eBy activating the red or green LED individually, or controlling both simultaneously using PWM signals, developers can create different visual status indications, including red, green, and mixed yellow-orange colors.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKY-011 two-color LED module\u003c\/li\u003e\n\u003cli\u003eRed and green LED elements in one 5mm package\u003c\/li\u003e\n\u003cli\u003eCommon-cathode LED configuration\u003c\/li\u003e\n\u003cli\u003eThree-pin interface\u003c\/li\u003e\n\u003cli\u003eIndependent red and green control\u003c\/li\u003e\n\u003cli\u003eSupports PWM brightness adjustment\u003c\/li\u003e\n\u003cli\u003eProduces mixed yellow-orange light when both colors are activated\u003c\/li\u003e\n\u003cli\u003eSuitable for 3.3V and 5V microcontroller systems with current-limiting resistors\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight PCB\u003c\/li\u003e\n\u003cli\u003eEasy integration into Arduino projects\u003c\/li\u003e\n\u003cli\u003eSuitable for electronic status displays\u003c\/li\u003e\n\u003cli\u003eUseful for robotics and automation indicators\u003c\/li\u003e\n\u003cli\u003eIdeal for educational electronics experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e KY-011 Two-Color LED Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e KY-011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e Dual-Color LED Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Colors:\u003c\/strong\u003e Red and Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Diameter:\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Configuration:\u003c\/strong\u003e Common Cathode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Forward Voltage:\u003c\/strong\u003e 2.0V to 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Forward Current:\u003c\/strong\u003e 20mA per LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e 3 Pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Method:\u003c\/strong\u003e Digital Output \/ PWM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Resistor for 3.3V:\u003c\/strong\u003e 120 Ohm per Color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Resistor for 5V:\u003c\/strong\u003e 220 Ohm per Color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Visible Red, Green or Mixed Light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Controllers:\u003c\/strong\u003e Arduino, ESP32, Raspberry Pi and Other Suitable Microcontrollers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e PCB Breakout Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino LED indicator projects\u003c\/li\u003e\n\u003cli\u003eRobotics status indication\u003c\/li\u003e\n\u003cli\u003eElectronic warning and notification lights\u003c\/li\u003e\n\u003cli\u003eBattery status indication\u003c\/li\u003e\n\u003cli\u003eTraffic light demonstrations\u003c\/li\u003e\n\u003cli\u003eSmart home automation projects\u003c\/li\u003e\n\u003cli\u003eMicrocontroller output testing\u003c\/li\u003e\n\u003cli\u003eDIY electronic control panels\u003c\/li\u003e\n\u003cli\u003eEducational PWM experiments\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi GPIO projects\u003c\/li\u003e\n\u003cli\u003eESP32 electronic indicators\u003c\/li\u003e\n\u003cli\u003eEmbedded electronics prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow Does the KY-011 Two-Color LED Work?\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eKY-011 Red Green LED Module\u003c\/strong\u003e contains two LED elements within one package. These LEDs share a common negative connection, known as a common cathode.\u003c\/p\u003e\n\n\u003cp\u003eEach LED has an independent positive connection that can be controlled through a suitable microcontroller output.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Input Activated:\u003c\/strong\u003e The LED emits red light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen Input Activated:\u003c\/strong\u003e The LED emits green light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth Inputs Activated:\u003c\/strong\u003e The emitted colors mix visually to produce a yellowish or orange appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth Inputs Off:\u003c\/strong\u003e The LED remains off.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBy using PWM signals, the brightness of each color can be adjusted independently to create different visual effects.\u003c\/p\u003e\n\n\u003ch3\u003eKY-011 Module Pinout\u003c\/h3\u003e\n\n\u003cp\u003eA standard common-cathode KY-011 module provides three connections:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED:\u003c\/strong\u003e Positive connection for the red LED element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen LED:\u003c\/strong\u003e Positive connection for the green LED element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND:\u003c\/strong\u003e Common cathode \/ shared ground connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The order and markings of the pins may vary between PCB manufacturers. Check the module's printed labels and connections before use.\u003c\/p\u003e\n\n\u003ch3\u003eArduino Compatibility\u003c\/h3\u003e\n\n\u003cp\u003eThe KY-011 module is compatible with Arduino UNO, Nano, Mega, and other suitable development boards.\u003c\/p\u003e\n\n\u003cp\u003eTwo Arduino digital output pins can independently control the red and green LED elements.\u003c\/p\u003e\n\n\u003cp\u003eUsing PWM-capable output pins allows software-controlled brightness adjustment and simple color-mixing effects.\u003c\/p\u003e\n\n\u003cp\u003eSuitable current-limiting resistors must be connected in series with the LED inputs to prevent excessive current.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent-Limiting Resistor Requirements\u003c\/h3\u003e\n\n\u003cp\u003eThe KY-011 LED elements must not be connected directly across a power supply without suitable current limiting.\u003c\/p\u003e\n\n\u003cp\u003eFor common module versions, the following series resistor values are recommended:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V Control:\u003c\/strong\u003e Approximately 120 Ohm per LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V Control:\u003c\/strong\u003e Approximately 220 Ohm per LED\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eUse a separate resistor for the red and green LED connections. Confirm that the resulting current is within the GPIO and LED ratings.\u003c\/p\u003e\n\n\u003ch3\u003eKY-011 vs KY-016 RGB LED Module\u003c\/h3\u003e\n\n\u003cp\u003eThe KY-011 and KY-016 are both multicolor LED modules, but they offer different color capabilities.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKY-011:\u003c\/strong\u003e Contains red and green LED elements with a shared cathode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKY-016:\u003c\/strong\u003e Contains red, green, and blue LED elements for a wider range of color combinations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoose the KY-011 for simple dual-color indicators and status displays. For projects requiring full RGB color control, consider a suitable RGB LED module instead.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the KY-011 LED Module?\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eTwo Colors in One LED:\u003c\/strong\u003e Saves space compared with installing separate red and green indicators.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSimple Digital Control:\u003c\/strong\u003e Each color can be switched independently using appropriate controller outputs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePWM Brightness Control:\u003c\/strong\u003e Allows fading and color-mixing effects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompact PCB:\u003c\/strong\u003e Convenient for embedded electronics and robotics projects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEducational Value:\u003c\/strong\u003e Suitable for learning digital output control, LED circuits, and PWM techniques.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse suitable current-limiting resistors for each LED element.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the LED's rated forward current.\u003c\/li\u003e\n\u003cli\u003eVerify the pinout before connecting the module.\u003c\/li\u003e\n\u003cli\u003eThe KY-011 is a two-color LED, not a full RGB module.\u003c\/li\u003e\n\u003cli\u003eThe forward voltage is not the same as the complete circuit supply voltage.\u003c\/li\u003e\n\u003cli\u003eUse GPIO voltage levels compatible with the selected resistors and LEDs.\u003c\/li\u003e\n\u003cli\u003eThis module is an output indicator and does not detect light, movement, or other physical conditions.\u003c\/li\u003e\n\u003cli\u003eDo not connect directly to AC mains or high-voltage supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x KY-011 Two-Color Red and Green LED Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuy KY-011 Two-Color LED Module in Pakistan\u003c\/h3\u003e\n\n\u003cp\u003eLooking for a \u003cstrong\u003eKY-011 Two-Color Red Green LED Module in Pakistan\u003c\/strong\u003e? Shop online at \u003cstrong\u003eRobostan.pk\u003c\/strong\u003e for LED modules, Arduino sensors, microcontrollers, electronic components, and robotics accessories.\u003c\/p\u003e\n\n\u003cp\u003eThe KY-011 is a useful component for students, engineers, makers, and electronics enthusiasts building indicator lights, control panels, educational circuits, and automation projects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOrder your KY-011 LED Module from Robostan.pk\u003c\/strong\u003e with nationwide delivery across Pakistan, including Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, and other cities.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRobostan.pk – Build. Innovate. Create.\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"ROBOSTAN","offers":[{"title":"Default Title","offer_id":68373826371950,"sku":null,"price":110.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/7391\/8062\/files\/ChatGPTImageNov13_2026_05_06_10PM-10.png?v=1794571682","url":"https:\/\/robostan.pk\/products\/ky-011-two-color-red-green-5mm-led-module-for-arduino","provider":"ROBOSTAN","version":"1.0","type":"link"}