{"product_id":"ds18b20-digital-temp-sensor-module-1-wire-55-to-125c","title":"DS18B20 Digital Temp Sensor Module 1-Wire -55 to +125°C","description":"\u003ch1\u003eDS18B20 Digital Temperature Sensor Module – 1-Wire, -55°C to +125°C, ±0.5°C Accuracy\u003c\/h1\u003e\n\n\u003cp\u003eThe DS18B20 is a digital thermometer that communicates over a 1-Wire bus, allowing multiple sensors to be connected using only one GPIO pin. It measures temperatures from -55°C to +125°C with ±0.5°C accuracy across a wide range, making it perfect for environmental monitoring, home automation, and industrial control. The module includes the sensor, a 4.7kΩ pull-up resistor, and a convenient 3-pin terminal for easy connection.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.0V to 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-55°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (-10°C to +85°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e9-bit to 12-bit (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e1-Wire (Dallas protocol)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePull-up Resistor\u003c\/td\u003e\n\u003ctd\u003eOnboard 4.7kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eWeather station with multiple DS18B20 sensors\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eSmart thermostat for home heating\/cooling systems\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/arduino-aquarium-temperature-controller-kit-pid-precision\"\u003eAquarium or terrarium temperature controller\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-server-room-temperature-monitor-kit-v4\"\u003eServer room ambient temperature monitor\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with any microcontroller supporting digital I\/O, including Arduino Uno\/Mega, ESP8266\/ESP32, Raspberry Pi, and STM32. The 1-Wire protocol is widely supported by libraries, and the 3.0–5.5V operating range ensures direct connectivity to 3.3V and 5V logic levels.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 3.3V or 5V, GND to ground, and DATA to a digital pin. A 4.7kΩ pull-up resistor between VCC and DATA is required; this module includes it onboard. For longer cable runs, use twisted pair and consider adding a capacitor for noise filtering.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the DS18B20 works directly with Arduino Uno using the OneWire and DallasTemperature libraries. Connect DATA to any digital pin (e.g., D2), and power from 5V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I connect multiple sensors on one wire?\u003c\/summary\u003e\u003cp\u003eYes, each DS18B20 has a unique 64-bit serial code, allowing multiple sensors to share the same 1-Wire bus. Simply connect all DATA lines together with a single pull-up resistor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work over long distances?\u003c\/summary\u003e\u003cp\u003eIn standard mode, cable lengths up to 50 meters are possible. For longer runs, use a dedicated 1-Wire driver or lower the bus speed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444954259821,"sku":"CDN-0243","price":70.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_bf83155c-9577-4de6-9213-6f863a32c589.jpg?v=1781512340","url":"https:\/\/compoden.com\/products\/ds18b20-digital-temp-sensor-module-1-wire-55-to-125c","provider":"Compoden","version":"1.0","type":"link"}