3.5mm Audio Plug DS18B20 Sensor
DS18b20 is a device communications bus system designed by Dallas Semiconductor Corp that provides low-speed(16.3kbps【1】) data,signaling,and power over a single conductor.
This DS18B20 sensor product is produced with a dual headphone adapter,also know as a headphone splitter or audio jack splitter.
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1 wire DS18B20 Temperature Sensor
1.Unique 1 Wire interface requires only one port pin for communcation. Multidrop capability simplifies distrbuted temperature sensing applications.Requires no extenal components
2.Operating temperature range:-55℃ to +125℃， ±0.5℃ accuracy from -10℃ to +85℃
3. Can be powered from data line. Power supply range is 3.0V to 5.5V
4.Thermometer resolution is programmable from 9 to 12 bits.
DS18B20 Temperature Sensors
The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius 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 control system.
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