{"id":57509,"date":"2020-06-08T00:15:46","date_gmt":"2020-06-07T23:15:46","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=57509"},"modified":"2026-10-20T13:16:08","modified_gmt":"2026-10-20T13:16:08","slug":"lm35-temperature-sensor-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/lm35-temperature-sensor-module\/","title":{"rendered":"LM35 Temperature Sensor Module"},"content":{"rendered":"<h3>LM35 Temperature Sensor Module<\/h3>\n<p>Analog temperature sensor module based on the LM35. Its output voltage varies with temperature, allowing a microcontroller with an analog input to estimate temperature in Celsius.<\/p>\n<h4>Specifications stated in the listing<\/h4>\n<ul>\n<li>Listed measurement range: 0\u00b0C to 100\u00b0C<\/li>\n<li>Listed accuracy: \u00b10.5\u00b0C at 25\u00b0C<\/li>\n<li>Output scale: 10mV\/\u00b0C<\/li>\n<li>Listed self-heating: less than 0.1\u00b0C in still air<\/li>\n<li>Current consumption: less than 60\u00b5A<\/li>\n<li>Listed operating supply: 4V to 30V<\/li>\n<li>Typical listed nonlinearity: \u00b10.25\u00b0C<\/li>\n<li>Output impedance: 0.1\u03a9 at a 1mA load<\/li>\n<\/ul>\n<p>These figures describe the LM35 or the seller listing; confirm the exact board and its supply requirements on arrival. The three pins are Vcc (supply), Vout (analog output) and GND. The source suggests 5V for an Arduino Uno. Connect Vout to an analog input and share ground. Do not connect the sensor output to a digital-only input.<\/p>\n<h4>Basic Arduino example<\/h4>\n<p>This source example reads A0 and converts the ADC reading using a 5V reference and a 10-bit, 1024-step scale. Adjust the calculation if your board uses a different ADC resolution or reference voltage.<\/p>\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>const int sensorPin = A0; \/\/ Broche o\u00f9 le LM35 est connect\u00e9\r\nfloat temperature;\r\n\r\nvoid setup() {\r\nSerial.begin(9600);\r\n}\r\n\r\nvoid loop() {\r\nint sensorValue = analogRead(sensorPin);\r\ntemperature = sensorValue * (5.0 \/ 1024.0) * 100.0;\r\nSerial.print(\"Temperature: \");\r\nSerial.print(temperature);\r\nSerial.println(\" C\");\r\ndelay(1000);\r\n}<\/code><\/pre>\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\nconst int sensorPin = A0; \/\/ Broche o\u00f9 le LM35 est connect\u00e9\r\nfloat temperature;\r\n\r\nLiquidCrystal_I2C lcd(0x27, 16, 2);\r\n\r\nvoid setup() {\r\nlcd.begin();\r\nlcd.backlight();\r\nSerial.begin(9600);\r\n}\r\n\r\nvoid loop() {\r\nint sensorValue = analogRead(sensorPin);\r\ntemperature = sensorValue * (5.0 \/ 1024.0) * 100.0;\r\nlcd.setCursor(0, 0);\r\nlcd.print(\"Temp: \");\r\nlcd.print(temperature);\r\nlcd.print(\" C\");\r\ndelay(1000);\r\n}<\/code><\/pre>\n<h4>Example with an I\u00b2C LCD<\/h4>\n<p>The second source example also displays the reading on a 16\u00d72 I\u00b2C LCD and uses the LiquidCrystal_I2C library. The example assumes the display address 0x27 and the library API shown; these may vary by display or library version.<\/p>\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>const int sensorPin = A0; \/\/ Broche o\u00f9 le LM35 est connect\u00e9\r\nfloat temperature;\r\n\r\nvoid setup() {\r\nSerial.begin(9600);\r\n}\r\n\r\nvoid loop() {\r\nint sensorValue = analogRead(sensorPin);\r\ntemperature = sensorValue * (5.0 \/ 1024.0) * 100.0;\r\nSerial.print(\"Temperature: \");\r\nSerial.print(temperature);\r\nSerial.println(\" C\");\r\ndelay(1000);\r\n}<\/code><\/pre>\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\nconst int sensorPin = A0; \/\/ Broche o\u00f9 le LM35 est connect\u00e9\r\nfloat temperature;\r\n\r\nLiquidCrystal_I2C lcd(0x27, 16, 2);\r\n\r\nvoid setup() {\r\nlcd.begin();\r\nlcd.backlight();\r\nSerial.begin(9600);\r\n}\r\n\r\nvoid loop() {\r\nint sensorValue = analogRead(sensorPin);\r\ntemperature = sensorValue * (5.0 \/ 1024.0) * 100.0;\r\nlcd.setCursor(0, 0);\r\nlcd.print(\"Temp: \");\r\nlcd.print(temperature);\r\nlcd.print(\" C\");\r\ndelay(1000);\r\n}<\/code><\/pre>\n<p>For both examples, verify wiring and calibration against your board. The optional 10k\u03a9 resistor mentioned in the source is not required by every LM35 module.<\/p>\n<h4>Arduino Uno connections<\/h4>\n<ul>\n<li>LM35 Vcc: 5V<\/li>\n<li>LM35 Vout: A0<\/li>\n<li>LM35 GND: GND<\/li>\n<li>For the LCD example: connect LCD VCC and GND to the matching supply and ground; connect SDA to A4 and SCL to A5 on the Uno.<\/li>\n<\/ul>\n<h4>Library for the LCD example<\/h4>\n<p>Install a compatible LiquidCrystal_I2C library through the Arduino IDE Library Manager. Check its initialization methods and the display I\u00b2C address, since they can differ between library versions and modules.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LM35 analog temperature sensor module with a linear 10mV\/\u00b0C output. Listing states a 0\u2013100\u00b0C range; verify the supplied module and ADC reference before use.<\/p>\n","protected":false},"featured_media":57510,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-57509","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>LM35 Temperature Sensor Module | MicroPlanet<\/title>\n<meta name=\"description\" content=\"LM35 analog temperature sensor module. 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