The DS18B20 Temperature Sensor is a digital sensor that operates within a supply voltage range of 3.3V to 5V and can measure temperatures from -55°C to 125°C.
The DS18B20 is cheap, easy to acquire and encapsulated in a strong metal case, with a long wire fitted.
Since it runs on 3 to 5 Volt DC, it is easy to connect to common microcontrollers.
The DS18B20 was invented by Dallas Semiconductor, see datasheet, originally in a TO-92 package. It uses a "1-wire" communication protocol.
Parameters
- Length of Cable : 100CM/200CM/300CM
- Size of Stainless steel sheath: 6 * 50mm
- Power supply range: 3.0V to 5.5V
- Operating temperature range: -55°C to +125°C (-67°F to +257°F)
- Storage temperature range: -55°C to +125°C (-67°F to +257°F)
- Accuracy over the range of -10°C to +85°C: ±0.5°C.
- Output leads: Yellow (DATA), Red (VCC), Black (GND)
Module
Some suppliers provide a practical module for connection, containing the required pull-up resistor and a capacitor for stabilisation.
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