Ds18b20 1 Wire Digital Temperature Sensor

Dq is 1 wire data bus should be connected to a digital pin on microcontroller.

Ds18b20 1 wire digital temperature sensor. Ds18b20 is 1 wire digital temperature sensor from maxim ic. To use this sensor with the arduino you need the onewire and the dallastemperature libraries. The connections are fairly simple. Enough of the theory let s go practical.

Wiring ds18b20 temperature sensor to arduino. Vdd pin supplies power for the sensor which can be between 3 3 to 5v. The ds18b20 temperature sensor is a one wire digital sensor. Each sensor has a unique 64 bit serial number etched into it allows for a huge number of sensors to be used on one data bus.

This is the latest ds18b20 1 wire digital temperature sensor from maxim ic. 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. You can use one sensor or multiple sensors on the same data line because you can identify each sensor by its unique address. 381 this is a pre wired and waterproofed with heat shrink version of the ds18b20 sensor.

Gnd is a ground pin. The ds18b20 provides 9 to 12 bit configurable temperature readings over a 1 wire interface so that only one wire and ground needs to be connected from a central microprocessor usable with 3 0 5 5v systems. The ds18b20 communicates over a 1 wire bus that by definition requires only one data line and ground for communication with a central microprocessor. The ds18b20 communicates over a 1 wire bus that by definition requires only one data line and ground for communication with a central microprocessor.

Handy for when you need to measure something far away or in wet conditions. This is a wonderful part. Reports degrees in celsius with 9 to 12 bit precision from 55 to 125 0 5. While the sensor is good up to 125 c the cable is jacketed in pvc so we suggest keeping it under 100 deg c.

Let s hook the ds18b20 up to the arduino. Reports degrees c with 9 to 12 bit precision 55c to 125c 0 5c. 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. 374 these 1 wire digital temperature sensors are fairly precise 0 5 c over much of the range and can give up to 12 bits of precision from the onboard digital to analog converter.

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