Ds18b20 1 Wire Digital Temperature Sensor

Vdd pin supplies power for the sensor which can be between 3 3 to 5v.

Ds18b20 1 wire digital temperature sensor.

Reports degrees in celsius with 9 to 12 bit precision from 55 to 125 0 5. Handy for when you need to measure something far away or in wet conditions. Reports degrees c with 9 to 12 bit precision 55c to 125c 0 5c. They work great with any microcontroller using a single digital pin and you can even connect multiple.

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. This is the latest ds18b20 1 wire digital temperature sensor from maxim ic. The ds18b20 communicates over a 1 wire bus that by definition requires only one data line and ground for communication with a central microprocessor. Enough of the theory let s go practical.

Let s hook the ds18b20 up to the arduino. Adafruit industries unique fun diy electronics and kits ds18b20 digital temperature sensor extras id. Wiring ds18b20 temperature sensor to arduino. While the sensor is good up to 125 c the cable is jacketed in pvc so we suggest keeping it under 100 deg c.

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. Gnd is a ground pin. 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. 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.

381 this is a pre wired and waterproofed with heat shrink version of the ds18b20 sensor. The ds18b20 temperature sensor is a one wire digital sensor. 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 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.

Adafruit industries unique fun diy electronics and kits waterproof ds18b20 digital temperature sensor extras id. Dq is 1 wire data bus should be connected to a digital pin on microcontroller. You can use one sensor or multiple sensors on the same data line because you can identify each sensor by its unique address. To use this sensor with the arduino you need the onewire and the dallastemperature libraries.

The connections are fairly simple.