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DS18B20 Shelly: A Comprehensive Guide to Temperature Monitoring

DS18B20 Shelly: A Comprehensive Guide to Temperature Monitoring


When it comes to monitoring temperature, accuracy is key. That’s where the DS18B20 sensor comes in. In this guide, we’ll take a closer look at the DS18B20 and how it can be used with the Shelly device for temperature monitoring.

What is DS18B20?

The DS18B20 is a digital temperature sensor that uses a one-wire communication protocol. It provides temperature readings with an accuracy of ±0.5°C over a range of -55°C to +125°C. This makes it ideal for a wide range of temperature monitoring applications, from industrial systems to home automation.

How DS18B20 Works

The DS18B20 uses a three-wire connection, consisting of power, ground, and data. The data wire allows the sensor to communicate with a microcontroller or other device. When the sensor is connected, it sends out a unique device ID code, which can be used to address it individually. The sensor then provides temperature readings through the data wire, using a digital signal that can be interpreted by the connected device.

Benefits of DS18B20

One of the main benefits of the DS18B20 is its accuracy. With a resolution of up to 12 bits, it can provide highly precise temperature readings, even in harsh environments. It’s also easy to use and cost-effective, making it a popular choice for both DIY enthusiasts and professionals.

In addition, the DS18B20 is versatile, with a range of mounting options and package types available. This allows it to be used in a variety of applications, from outdoor weather stations to indoor climate control systems.

How to Use DS18B20 with Shelly

The Shelly device is a versatile Wi-Fi switch that can be used for a range of home automation tasks. When combined with the DS18B20 temperature sensor, it can provide accurate temperature monitoring that can be accessed from anywhere via the internet.

To use the DS18B20 with Shelly, you’ll need to connect it to the Shelly device using a three-wire connection. Once connected, you can set up the Shelly device to receive temperature readings from the DS18B20 and send alerts or trigger actions based on these readings.


The DS18B20 is an accurate, versatile, and cost-effective temperature sensor that can be used in a wide range of applications. When combined with the Shelly device, it provides remote temperature monitoring capabilities that can be accessed from anywhere via the internet. Whether you’re a DIY enthusiast or a professional, the DS18B20 and Shelly make it easy to monitor temperature with precision and ease.

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