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3mm Two-Color LED Module (KY-029)

SKU: DIB0NGIQ8W
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4.1 (78 reviews)
The KY-029 3mm Two-Color LED Module is a compact indicator module featuring a 3mm dual-color LED, typically capable of displaying red and green light. By independently controlling each LED terminal, the module can illuminate either color individually or both together (depending on the LED configuration), providing versatile visual indication for electronic projects. The module includes an onboard current-limiting resistor for...
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The KY-029 3mm Two-Color LED Module is a compact indicator module featuring a 3mm dual-color LED, typically capable of displaying red and green light. By independently controlling each LED terminal, the module can illuminate either color individually or both together (depending on the LED configuration), providing versatile visual indication for electronic projects.

The module includes an onboard current-limiting resistor for easy connection to microcontrollers without requiring additional external components. Its compact size and low power consumption make it suitable for Arduino, ESP32, STM32, Raspberry Pi Pico, and other embedded development platforms.

The KY-029 is commonly used in robotics, automation systems, status indicators, educational electronics, and DIY projects where compact multi-color LED indication is required.

Key Features

  • High-brightness 3mm dual-color LED
  • Displays two different LED colors
  • Independent control of each color
  • Built-in current-limiting resistor
  • Low power consumption
  • Fast switching response
  • Compact PCB module design
  • Easy microcontroller interfacing
  • Stable and reliable operation
  • Suitable for digital output control
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Ideal for status indication and visual feedback
  • Durable through-hole construction
  • Perfect for educational and DIY electronics projects

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Dual-Color LED Module
Model: KY-029
LED Type: 3mm Two-Color LED
LED Colors: Red and Green (Typical)
Operating Voltage: 3.3V to 5V DC
Forward Voltage (Red): Approximately 1.8V to 2.2V
Forward Voltage (Green): Approximately 2.0V to 3.2V
Forward Current: Up to 20mA per LED
Control Method: Digital Output
Built-in Resistor: Yes
Viewing Angle: Approximately 30° to 60°
Response Time: Instantaneous
Brightness: High Brightness
Interface Pins: GND, R, G
Mounting Type: Through-Hole Module
PCB Dimensions: Approximately 18.5mm × 15mm
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

LED Module.PDF

FAQ

1. What is the KY-029 Two-Color LED Module used for?

The KY-029 is used for visual status indication, signal display, and educational electronics projects where two LED colors are required.

2. What colors can the KY-029 display?

The module typically features a red and green 3mm LED that can be controlled independently to indicate different system states.

3. Can the KY-029 be connected directly to Arduino and ESP32 boards?

Yes, the module is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers using digital output pins.

4. Does the KY-029 require an external current-limiting resistor?

No, the module includes an onboard current-limiting resistor, allowing direct connection to compatible microcontroller outputs.

5. What applications commonly use the KY-029 module?

It is widely used in robotics, automation systems, embedded electronics, educational projects, prototype development, and status indication applications.

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