{"id":52669,"date":"2017-04-11T00:23:56","date_gmt":"2017-04-10T23:23:56","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=52669"},"modified":"2026-10-19T16:51:26","modified_gmt":"2026-10-19T16:51:26","slug":"arduino-speed-sensor-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/arduino-speed-sensor-module\/","title":{"rendered":"Arduino Speed Sensor Module"},"content":{"rendered":"<h3>Arduino Speed Sensor Module<\/h3>\n<p>This Arduino speed sensor module measures the rotational speed of a motor or another moving object. It is available in two versions: a 3-pin version with a digital output, and a 4-pin version with both digital and analog outputs.<\/p>\n<h4>Detailed specifications<\/h4>\n<ul>\n<li><strong>Supply voltage:<\/strong> 3.3\u20135 V<\/li>\n<li><strong>Digital output:<\/strong> 0 or 1<\/li>\n<li><strong>Analog output:<\/strong> Voltage proportional to speed (4-pin version only)<\/li>\n<li><strong>Maximum output current:<\/strong> 15 mA<\/li>\n<li><strong>Operating temperature:<\/strong> 0\u00b0C to +80\u00b0C<\/li>\n<li><strong>Sensor type:<\/strong> Infrared (IR) or Hall effect, depending on the model<\/li>\n<\/ul>\n<h4>How it works<\/h4>\n<p>The module uses either an infrared sensor or a Hall-effect sensor to detect interruptions caused by a rotating disc or a magnet. Each interruption is counted to determine rotational speed (RPM).<\/p>\n<h4>Applications<\/h4>\n<ul>\n<li>Motor speed measurement<\/li>\n<li>Robotics projects<\/li>\n<li>Bicycle speedometers<\/li>\n<li>Industrial monitoring systems<\/li>\n<li>DIY projects<\/li>\n<\/ul>\n<h4>Pinout (3-pin version)<\/h4>\n<ul>\n<li><strong>VCC:<\/strong> Power supply (3.3\u20135 V)<\/li>\n<li><strong>GND:<\/strong> Ground<\/li>\n<li><strong>DO:<\/strong> Digital output<\/li>\n<\/ul>\n<h4>Pinout (4-pin version)<\/h4>\n<ul>\n<li><strong>VCC:<\/strong> Power supply (3.3\u20135 V)<\/li>\n<li><strong>GND:<\/strong> Ground<\/li>\n<li><strong>DO:<\/strong> Digital output<\/li>\n<li><strong>AO:<\/strong> Analog output<\/li>\n<\/ul>\n<h4>How to use it<\/h4>\n<p>Connect the VCC and GND pins to the Arduino power supply. Connect DO to an Arduino digital input. On the 4-pin version, AO can be connected to an analog input to obtain a speed-proportional reading.<\/p>\n<h4>Using it with an Arduino Uno<\/h4>\n<h4>Basic Arduino code example (3-pin version)<\/h4>\n<div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>const int sensorPin = 2;\r\nvolatile int pulseCount = 0;\r\n\r\n\r\nvoid setup() {\r\n\u00a0 Serial.begin(9600);\r\n\u00a0 pinMode(sensorPin, INPUT_PULLUP);\r\n\u00a0 attachInterrupt(digitalPinToInterrupt(sensorPin), countPulse, RISING);\r\n}\r\n\r\n\r\nvoid loop() {\r\n\u00a0 Serial.print(\"Pulses: \");\r\n\u00a0 Serial.println(pulseCount);\r\n\u00a0 delay(1000);\r\n}\r\n\r\n\r\nvoid countPulse() {\r\n\u00a0 pulseCount++;\r\n}<\/code><\/pre>\n<\/div>\n<\/div>\n<h4>What the code does<\/h4>\n<p>This code counts pulses from the speed sensor and displays the pulse count in the serial monitor.<\/p>\n<h4>Components required for the basic example<\/h4>\n<ul>\n<li>Arduino Uno<\/li>\n<li>Speed sensor module (3-pin version)<\/li>\n<li>Connecting wires<\/li>\n<\/ul>\n<h4>Basic code explained<\/h4>\n<ol>\n<li><strong>Initialization:<\/strong> Serial communication is started and the sensor is configured as an input with the internal pull-up resistor enabled.<\/li>\n<li><strong>Pulse counter:<\/strong> An interrupt is attached to count each pulse detected by the sensor.<\/li>\n<li><strong>Displaying data:<\/strong> The pulse count is displayed in the serial monitor every second.<\/li>\n<\/ol>\n<h4>Basic wiring<\/h4>\n<ul>\n<li><strong>VCC:<\/strong> 5 V (Arduino)<\/li>\n<li><strong>GND:<\/strong> GND (Arduino)<\/li>\n<li><strong>DO:<\/strong> D2 (Arduino)<\/li>\n<\/ul>\n<h4>Advanced Arduino code example (4-pin version)<\/h4>\n<div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>#include &lt;Wire.h&gt;\r\n#include &lt;LiquidCrystal_I2C.h&gt;\r\n\r\n\r\nLiquidCrystal_I2C lcd(0x27, 16, 2);\r\nconst int sensorPin = 2;\r\nconst int analogPin = A0;\r\nvolatile int pulseCount = 0;\r\nint analogValue = 0;\r\n\r\n\r\nvoid setup() {\r\n\u00a0 lcd.begin();\r\n\u00a0 lcd.backlight();\r\n\u00a0 Serial.begin(9600);\r\n\u00a0 pinMode(sensorPin, INPUT_PULLUP);\r\n\u00a0 attachInterrupt(digitalPinToInterrupt(sensorPin), countPulse, RISING);\r\n}\r\n\r\n\r\nvoid loop() {\r\n\u00a0 analogValue = analogRead(analogPin);\r\n\u00a0 lcd.setCursor(0, 0);\r\n\u00a0 lcd.print(\"Pulses: \");\r\n\u00a0 lcd.print(pulseCount);\r\n\u00a0 lcd.setCursor(0, 1);\r\n\u00a0 lcd.print(\"Speed: \");\r\n\u00a0 lcd.print(analogValue);\r\n\u00a0 delay(1000);\r\n}\r\n\r\n\r\nvoid countPulse() {\r\n\u00a0 pulseCount++;\r\n}<\/code><\/pre>\n<\/div>\n<\/div>\n<h4>What the code does<\/h4>\n<p>This code counts speed-sensor pulses and displays both the pulse count and analog speed reading on an I2C LCD.<\/p>\n<h4>Components required for the advanced example<\/h4>\n<ul>\n<li>Arduino Uno<\/li>\n<li>Speed sensor module (4-pin version)<\/li>\n<li>1602 I2C LCD<\/li>\n<li>Connecting wires<\/li>\n<\/ul>\n<h4>Advanced code explained<\/h4>\n<ol>\n<li><strong>Including libraries:<\/strong> <code>#include &lt;Wire.h&gt;<\/code> and <code>#include &lt;LiquidCrystal_I2C.h&gt;<\/code> add the library required for the LCD.<\/li>\n<li><strong>Initialization:<\/strong> Set up communication with the LCD and initialize the sensor pins.<\/li>\n<li><strong>Reading and displaying data:<\/strong> Pulses and the analog speed value are read and displayed on the LCD.<\/li>\n<\/ol>\n<h4>Advanced wiring<\/h4>\n<ul>\n<li><strong>VCC:<\/strong> 5 V (Arduino)<\/li>\n<li><strong>GND:<\/strong> GND (Arduino)<\/li>\n<li><strong>DO:<\/strong> D2 (Arduino)<\/li>\n<li><strong>AO:<\/strong> A0 (Arduino)<\/li>\n<li><strong>VCC (LCD):<\/strong> 5 V (Arduino)<\/li>\n<li><strong>GND (LCD):<\/strong> GND (Arduino)<\/li>\n<li><strong>SCL (LCD):<\/strong> A5 (Arduino)<\/li>\n<li><strong>SDA (LCD):<\/strong> A4 (Arduino)<\/li>\n<\/ul>\n<h4>Installing the driver\/library<\/h4>\n<p>To use the speed sensor and LCD with Arduino, install the LiquidCrystal I2C library through the Arduino IDE:<\/p>\n<ol>\n<li><strong>Open the Arduino IDE:<\/strong> Make sure you are using the latest version.<\/li>\n<li><strong>Open the Library Manager:<\/strong> Choose Sketch \u2192 Include Library \u2192 Manage Libraries.<\/li>\n<li><strong>Search for \u201cLiquidCrystal I2C\u201d:<\/strong> Use the search box to find the library.<\/li>\n<li><strong>Install the library:<\/strong> Click Install to add it to your IDE.<\/li>\n<\/ol>\n<p><span style=\"font-size: 8pt\">Keywords: speed, counter, optical, speed sensor, RPM, Arduino.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This Arduino speed sensor measures the rotational speed of a motor or moving object. Depending on the model, it has a 3-pin digital output or a 4-pin digital and analog output.<\/p>\n","protected":false},"featured_media":52675,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-52669","product","type-product","status-publish","has-post-thumbnail","product_cat-developpement-en","product_cat-modules-capteurs-en","first","outofstock","taxable","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Arduino Speed Sensor Module - MicroPlanet Maroc<\/title>\n<meta name=\"description\" content=\"This Arduino speed sensor measures the rotational speed of a motor or moving object. 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