VCC to  3.3V  P1 pin1,  Data to P1 pin7(GPIO4) , GND to P1 pin6(GND)

Data & VCC  have one 10K SMD Resister

This  DS18B20 1-WIRE Digital Thermometer with 9 to 12 bit programmable resolution.

• Unique 1-Wire interface only requires ONE data pin for communication
• Each device has a unique 64-bit serial number stored in an on-board ROM
• Can be powered from the data line with a power supply range of 3.0V to 5.5V in Parasite mode
• Measures temperatures from -55°C to +125°C
• ±0.5°C accuracy from -10°C to +85°C
• Thermometer resolution is user-selectable from 9 to 12 bits
• Converts temperature to 12-bit digital word in 750ms (max)
• The main chip is contained within a stainless steel tube measuring 6 x 50mm with a 1 meter long lead.

  Support our scratch driver software, can be easy use in scratch

Command " TEMPB20"   to active 1-wire in pin7(GPIO4)

1.broadcast ""TEMPB20" 

2. after broadcast  in Sensing --> Slider ,

you will see the " Temp18B20"  in the list