Digital Temperature Sensor Module (DS18B20)

The DS18B20 digital thermometer provides 9-bit to 12-bit temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The c communicates over a 1-Wire® bus that requires only one data line (and ground) for communication with microcontroller. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microcontroller to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery. Features Unique 1-Wire® interface requires only one port pin for communication Each device has a unique 64-bit serial code stored in an onboard ROM Can be powered from data line. Power supply range is 3.0V to 5.5V Measures temperatures from –55°C to +125°C Thermometer resolution is user-selectable from 9 to 12 bits User-definable nonvolatile (NV) alarm settings with Alarm search command identifies devices whose temperature is outside of programmed limits. The DS18B20 DataSheet For Temperature Sensor Arduino Tutorial, please click here For Temperature Sensor Raspberry Pi tutorial, please click here The Arduino Site: "1-Wire" information HOW-TO Connect several DS18B20 on same wires

Waterproof Temperature Sensor DS18B20 (Digital) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. All weather/submersible temperature probe, specifically designed to be used in the field. This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. This is a pre-wired and waterproofed version of the DS18B20 sensor all weather/submersible temperature probe, specifically designed to be used in the field. Because they are digital, you don’t get any signal degradation even over long distances. Multiple thermometers can be connected on the same wire because every one has it’s own internal address. Features Usable temperature range: -55 to 125°C (-67°F to +257°F) 9 to 12 bit selectable resolution Uses 1-Wire interface- requires only one digital pin for communication Unique 64 bit ID burned into chip Multiple sensors can share one pin ±0.5°C Accuracy from -10°C to +85°C Temperature-limit alarm system Query time is less than 750ms Usable with 3.0V to 5.5V power/data Output leads: red (VCC), blue or yellow (DATA), black (GND) It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.