Overview

The One-Wire Temperature Sensor is a sensing module that uses the 1-Wire digital communication protocol for data transmission. It integrates a DS18B20

temperature chip and features a waterproof casing and high temperature resistance. The sensor offers temperature readings with 9- to 12-bit resolution,

making it suitable for applications such as multi-point temperature monitoring and automated environmental control.

Features

• Supports 3.3V to 5V operative voltage

• High-precision temperature measurement (resolution configurable from 9 to 12 bits)

• Low power consumption, ideal for long-term monitoring

• Waterproof probe design, suitable for use in humid or enclosed environments

• Communication via 1-wire interface – simple wiring (just one digital line + GND)

Application

• Home automation systems (heating and cooling control)

• Temperature monitoring for liquids or pipelines

• Temperature sensing in smart agriculture

• Environmental monitoring in refrigerators, greenhouses, or aquariums

Electrical Characteristics

Term explanation：

1. Typ* refers to “Typical,” indicating commonly observed performance under standard conditions (not minimum or maximum limits).

2. Data Output Resolution* is configurable via command from 9 to 12 bits. Higher resolution results in longer response time (up to approx. 750 ms at 12-bit).

Pinout