Use Arduino and waterproof DS18B20 to test liquid temperature
Parts and devices:
Arduino UNO R3 x 1
Waterproof DS18B20 module x 1
4.7Kohm resistor x 1
Step 1) Download OneWire Library from https://osoyoo.com/wp-content/uploads/2016/06/OneWire.zip, unzip the file and put the folder into Arduino iDE library sub folder.
Step 1)Download sample code from https://osoyoo.com/wp-content/uploads/2016/06/ds18b20temp.txt,load it into Arduino IDE
Open the serial window of your ARduino IDE, hold the sensor head in your hand, you will see your hand temperature in serial window as following:
Put the sensor into cold water, you will see the temperature drop down.
DownLoad Url osoyoo.com