{"id":58694,"date":"2023-07-09T16:20:19","date_gmt":"2023-07-09T15:20:19","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=58694"},"modified":"2026-10-20T16:23:25","modified_gmt":"2026-10-20T16:23:25","slug":"three-color-traffic-light-led-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/three-color-traffic-light-led-module\/","title":{"rendered":"Three-Color Traffic Light LED Module"},"content":{"rendered":"<h3>Three-Color Traffic Light LED Module<\/h3>\n<p>This module simulates a road traffic signal using red, yellow and green LEDs. It is suitable for traffic-light models, train layouts, programming demonstrations and control-logic projects.<\/p>\n<h4>Specifications listed<\/h4>\n<ul>\n<li>Operating voltage: 5V DC<\/li>\n<li>LEDs: red, yellow and green, each 8 mm diameter<\/li>\n<li>Operating current listed: red 13mA, yellow 13mA, green 25mA<\/li>\n<li>Interface: four pins \u2014 GND, R, Y and G<\/li>\n<li>Dimensions: 56 \u00d7 21 \u00d7 11 mm<\/li>\n<li>Current-limiting resistors: built in<\/li>\n<li>Compatibility stated: 3.3V and 5V systems<\/li>\n<li>Control: active HIGH (an LED turns on with a HIGH signal), as listed<\/li>\n<li>Mounting: breadboard or jumper wires<\/li>\n<\/ul>\n<h4>Pinout<\/h4>\n<ul>\n<li><strong>G:<\/strong> green LED, active HIGH<\/li>\n<li><strong>Y:<\/strong> yellow LED, active HIGH<\/li>\n<li><strong>R:<\/strong> red LED, active HIGH<\/li>\n<li><strong>GND:<\/strong> ground<\/li>\n<\/ul>\n<p>Connect the module to compatible digital outputs and a common ground. The listing specifies 5V operation and states compatibility with 3.3V and 5V systems; verify your exact board and module before use.<\/p>\n<h4>Basic Arduino example<\/h4>\n<p>This source example lights green for 5 seconds, yellow for 2 seconds, and red for 5 seconds, then repeats. Wire R to pin 11, Y to pin 12 and G to pin 13 on the Arduino Uno.<\/p>\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>const int RED_PIN = 11;\u00a0 \u00a0\/\/ Broche pour la LED rouge\r\nconst int YELLOW_PIN = 12;\u00a0 \/\/ Broche pour la LED jaune\r\nconst int GREEN_PIN = 13;\u00a0 \/\/ Broche pour la LED verte\r\n\r\n\r\nvoid setup() {\r\n\u00a0 pinMode(RED_PIN, OUTPUT);\r\n\u00a0 pinMode(YELLOW_PIN, OUTPUT);\r\n\u00a0 pinMode(GREEN_PIN, OUTPUT);\r\n}\r\n\r\n\r\nvoid loop() {\r\n\u00a0 digitalWrite(GREEN_PIN, HIGH);\u00a0 \u00a0\/\/ Allumer le vert\r\n\u00a0 delay(5000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 5 secondes\r\n\u00a0 digitalWrite(GREEN_PIN, LOW);\u00a0 \u00a0 \/\/ \u00c9teindre le vert\r\n\u00a0 digitalWrite(YELLOW_PIN, HIGH);\u00a0 \/\/ Allumer le jaune\r\n\u00a0 delay(2000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 2 secondes\r\n\u00a0 digitalWrite(YELLOW_PIN, LOW);\u00a0 \u00a0\/\/ \u00c9teindre le jaune\r\n\u00a0 digitalWrite(RED_PIN, HIGH);\u00a0 \u00a0 \u00a0\/\/ Allumer le rouge\r\n\u00a0 delay(5000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 5 secondes\r\n\u00a0 digitalWrite(RED_PIN, LOW);\u00a0 \u00a0 \u00a0 \/\/ \u00c9teindre le rouge\r\n}<\/code><\/pre>\n<h4>Advanced Arduino example<\/h4>\n<p>The second source example uses a <strong>setLights()<\/strong> function to set the three signal states. Its sequence is red for 5 seconds, green for 5 seconds, and yellow for 2 seconds, then repeats.<\/p>\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>const int RED_PIN = 11;\u00a0 \u00a0 \/\/ Broche pour la LED rouge\r\nconst int YELLOW_PIN = 12; \/\/ Broche pour la LED jaune\r\nconst int GREEN_PIN = 13;\u00a0 \/\/ Broche pour la LED verte\r\n\r\n\r\nvoid setup() {\r\n\u00a0 pinMode(RED_PIN, OUTPUT);\r\n\u00a0 pinMode(YELLOW_PIN, OUTPUT);\r\n\u00a0 pinMode(GREEN_PIN, OUTPUT);\r\n}\r\n\r\n\r\nvoid loop() {\r\n\u00a0 \/\/ S\u00e9quence de feux\r\n\u00a0 setLights(HIGH, LOW, LOW);\u00a0 \u00a0\/\/ Rouge\r\n\u00a0 delay(5000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 5 secondes\r\n\u00a0 setLights(LOW, LOW, HIGH);\u00a0 \u00a0\/\/ Vert\r\n\u00a0 delay(5000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 5 secondes\r\n\u00a0 setLights(LOW, HIGH, LOW);\u00a0 \u00a0\/\/ Jaune\r\n\u00a0 delay(2000);\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ Attendre 2 secondes\r\n}\r\n\r\n\r\nvoid setLights(int redState, int yellowState, int greenState) {\r\n\u00a0 digitalWrite(RED_PIN, redState);\r\n\u00a0 digitalWrite(YELLOW_PIN, yellowState);\r\n\u00a0 digitalWrite(GREEN_PIN, greenState);\r\n}<\/code><\/pre>\n<h4>Parts and setup<\/h4>\n<p>For either example, the source lists an Arduino Uno, this traffic-light module and jumper wires. Connect Vcc to the Arduino 5V pin and GND to Arduino GND; connect R, Y and G to digital pins 11, 12 and 13, respectively.<\/p>\n<h4>Code notes<\/h4>\n<p>The pin constants identify the LED connections, and <strong>pinMode(&#8230;, OUTPUT)<\/strong> configures them as outputs. The basic example switches each output with <strong>digitalWrite()<\/strong> and waits using <strong>delay()<\/strong>. The advanced example passes the three states to <strong>setLights()<\/strong>, which writes each state to its corresponding LED pin.<\/p>\n<p>This is a demonstration sequence, not a road-safety traffic controller.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Three-LED traffic-light module with red, yellow and green 8 mm LEDs, built-in current-limiting resistors and 4-pin interface.<\/p>\n","protected":false},"featured_media":58695,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-58694","product","type-product","status-publish","has-post-thumbnail","product_cat-developpement-en","product_cat-modules-capteurs-en","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Three-Color Traffic Light LED Module | MicroPlanet<\/title>\n<meta name=\"description\" content=\"5V traffic-light LED module with red, yellow and green LEDs, active-HIGH inputs and built-in current-limiting resistors. 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