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> 10 x DS18B20 dallas 1 wire digital temperature sensor
10 x DS18B20 dallas 1 wire digital temperature sensor
DS18B20 Dallas Temperature Sensor
DS18B20 Dallas 1-wire Temperature Sensor
The DS18B20 Digital Thermometer provides 9 to 12 bit centigrade temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of 55 C to +125 C and is accurate to 0.5 C over the range of 10 C to +85 C. 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 microprocessor 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, and process monitoring and
* Unique 1-Wire interface requires only one port pin for communication
* Each device has a unique 64-bit serial code stored in an on board ROM
* Multidrop capability simplifies distributed temperature sensing applications
* Measures temperatures from 55 C to +125 C ( 67 F to +257 F)
* +/-0.5 Celsius accuracy from 10 C to +85 C
* Thermometer resolution is user-selectable from 9 to 12 bits
* Converts temperature to 12-bit digital word in 750ms (max.)
* User-definable nonvolatile (NV) alarm settings
* Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
* Available in 8-pin SO (150mil), 8-pin uSOP, and 3-pin TO-92 packages
* Software compatible with the DS1822
* Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system
10 x DS18B20 Temperature Sensor
* 10 x DS18B20 TEMPERATURE SENSOR
* DS18B20 Data sheet & Schematic
