How To Use Ds18b20 Waterproof Temperature Sensor & Arduino

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• DS18B20 Waterproof Temperature Sensor
• OLED Display
• Arduino UNO (or any other Arduino)
• 4.7K ohm resistor
• Jumper wires
• Breadboard
• Visuino program: Download Visuino

Thank you PCBWay for supporting this tutorial and helping users learn more about electronics.

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• Connect Arduino digital pin [2] to 1K ohm resistor
• Connect Arduino digital pin [2] to DS18B20 Yellow wire
• Connect 1K ohm resistor to Arduino pin [5V]
• Connect Arduino pin [5V] to DS18B20 Red wire [+]
• Connect Arduino pin [GND] to DS18B20 Black wire [GND]
• Connect Arduino pin [5V] to OLED pin [VCC]
• Connect Arduino pin [GND] to OLED pin [GND]
• Connect Arduino pin [SDA] to OLED pin [SDA]
• Connect Arduino pin [SCL] to OLED pin [SCL]

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The Visuino: https://www.visuino.eu also needs to be installed. Download Free version or register for a Free Trial.

Start Visuino as shown in the first picture Click on the "Tools" button on the Arduino component (Picture 1) in Visuino When the dialog appears, select "Arduino UNO" as shown on Picture 2

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• Add "DS1820" component
• Add "OLED I2C" component
• Double click on the "DisplayOLED1" component and in the "Elements" window:
• Drag "Draw Text" to the left side and in the properties window set "Size" to 2 and "Text" to TEMP:
• Drag "Text Field" to the left side and in the properties window set "Size" to 3 and "Y" to 30
• Close the "Elements" window

• Connect "Thermometer1" pin [Out] to "DisplayOLED1" > "Text Field1" pin [In]
• Connect "Thermometer1" pin [One Wire] to Arduino Digital pin [2]
• Connect "DisplayOLED1" pin I2C [Out] to Arduino I2C pin [In]

In Visuino, at the bottom click on the "Build" Tab, make sure the correct port is selected, then click on the "Compile/Build and Upload" button.

If you power the Arduino module a temperature value will show on the OLED Display.

Congratulations! You have completed your project with Visuino. Also attached is the Visuino project, that I created for this Tutorial, you can download it and open it in Visuino: https://www.visuino.eu