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LED Traffic Lights Signal Module/Digital Signal Output Traffic Light Module

Component	Specification
Module Type	LED Traffic Signal (Digital Output)
Operating Voltage	5V DC
LED Colors	Red, Yellow (Amber), Green
LED Size	10mm (Large High-Brightness)
Interface	4-Pin Header (GND, R, Y, G)
Control Type	Common Cathode (Digital HIGH to trigger)
PCB Dimensions	60mm x 20mm x 13.5mm

Price

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₹ 42.37

(Tax included)

Barcode: 3998793

Product Description

The LED Traffic Light Signal Module is a compact, ready-to-use breakout board designed to simulate a real-world traffic signaling system. It features three high-brightness 10mm LEDs (Red, Yellow, and Green) arranged vertically on a slim PCB. Unlike individual LEDs, this module integrates current-limiting resistors, allowing it to be connected directly to a 5V microcontroller without additional components. It is the perfect educational tool for teaching logic states, timing sequences, and smart city infrastructure prototypes.

Key Features

Integrated Resistors: No external resistors required; safe for direct connection to 5V logic.
Large 10mm LEDs: Superior visibility compared to standard 5mm LEDs, ideal for demonstration models.
Common Cathode Interface: Simplifies wiring by using a single shared Ground pin for all three lights.
PWM Compatible: Can be connected to PWM pins to adjust the brightness of each individual color.
Plug-and-Play: Standard 2.54mm pin headers make it compatible with breadboards and jumper wires.

Technical Details

Pinout:
- GND: Ground (-)
- R: Red LED Control (+)
- Y: Yellow LED Control (+)
- G: Green LED Control (+)
Operating Temperature: -40°C to +85°C
Input Signal: Digital High (ON) / Digital Low (OFF)

Prototyping and Engineering Tips from Robogears

Coding Logic: Since this is a Common Cathode module, sending a HIGH signal (5V) from your Arduino pin will turn the LED ON, and sending a LOW signal (0V) will turn it OFF.
Smart Traffic Prototype: Combine this module with an Ultrasonic Sensor. Program the "Red" light to turn on when a vehicle (object) is detected within a specific distance, and "Green" when the path is clear.
Current Efficiency: Each LED consumes approximately 15-20mA. If you are running multiple modules simultaneously from a single Arduino board, ensure your total current draw does not exceed the board's regulator limits.
Visual Aid: For classroom projects, these are much better than individual LEDs because the vertical PCB layout clearly resembles a real traffic post, making it easier for students to visualize the project.

Package Includes

1 x LED Traffic Light Signal Module

Disclaimer Images are for reference; actual PCB color or silkscreen markings may vary slightly by production batch. DO NOT connect to voltages higher than 5V DC, as this may damage the integrated LEDs and resistors.

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