DS18B20 Stainless steel package 1 meter waterproof temperature Sensor Probe

The DS18B20 Digital Thermometer provides 9 to 12-bit (configurable) temperature readings which indicate the temperature of the device.

Information is sent to/from the DS18B20 over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor to a DS18B20. Power for reading, writing, and performing temperature conversions can be derived from the data line itself with no need for an external power source.

Because each DS18B20 contains a unique silicon serial number, multiple DS18B20s can exist on the same 1-Wire bus. This allows for placing temperature sensors in many different places. Applications where this feature is useful include HVAC environmental controls, sensing temperatures inside buildings, equipment or machinery, and process monitoring and control.

The core functionality of the DS18B20 is its direct-to-digital temperature sensor. The resolution of the DS18B20 is configurable (9, 10, 11, or 12 bits), with 12-bit readings the factory default state. This equates to a temperature resolution of 0.5°C, 0.25°C, 0.125°C, or 0.0625°C.

Following the issuance of the Convert T [44h] command, a temperature conversion is performed and the thermal data is stored in the scratchpad memory in a 16-bit, sign-extended two’s complement format. The temperature information can be retrieved over the 1-Wire interface by issuing a Read Scratchpad [BEh] command once the conversion has been performed. The data is transferred over the 1-Wire bus, LSB first. The MSB of the temperature register contains the “sign” (S) bit, denoting whether the temperature is positive or negative.

Features:

• Unique 1-Wire interface requires only one port pin for communication
• Requires no external components
• Supports one-wire interface
• Input Voltage: 3~5.5V
• Measurement Range: -55~125℃
• Accuracy: ±0.5°C accuracy from -10°C to +85°C
• Resolution: 0.0625°C ~ 0.5°C
• Pin Definition: GND,VCC,Signal

Applications:

1. Temperature and Humidity measurement
2. thermostatic controls
3. Local Weather station
4. Automatic climate control
5. Environment monitoring

Country of origin : China

DS18B20 1 meter waterproof temperature Sensor Probe