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DS18B20 for Arduino



📒 Datasheet

PDF

There are many libraries for DS18B20 sensors. This write-up will use the most common set.

1.

🔽 Install Arduino IDE

Install the Arduino IDE

2.

📦 Install the library

Start the Arduino IDE, press the Sketch menu, and then Include Library > Manage Libraries. Search for DallasTemperature and install the library.

There are also lots of other DS18B20 libraries, any of them will work if you prefer.

3.

🔌 Connections

Module
Controller
GND ground
VCC 3.3 - 5 volt power supply
SIG signal data line for 1-Wire sensor

A pull-up resistor is needed for the signal line, more data can be found in the datasheet. On our carrier boards, this resistor is present.

4.

🔢 Code

Several example sketches can be found in File > Examples > Dallas Temperature in the Arduino IDE.

5.

➡️ Upload the code

Pick the board and port, then Upload the code.


6.

🔎 View the output

Open the Serial Monitor, measurements should be displayed in the monitor, with updates every second.



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