Waterproof temperature sensor with DS18B20

Description

Built around the Maxim DS18B20 digital temperature sensor, this fully sealed probe measures temperature accurately (from -55°C to +125°C) in wet environments. Every sensor holds a unique 64-bit serial code inside it, so a very large number of sensors can share the same data bus. Applications include thermostatic controls, industrial systems, consumer products, thermometers and so on.

• Needs only one pin for 1-Wire communication
• Every sensor holds a unique 64-bit serial code stored in an on-board ROM
• No external components required
• The alarm search command finds the addresses of the devices whose temperature is outside the programmed limits (temperature alarm condition)

• Datasheet (DS18B20)
• mbed Example
• Bildr Tutorial