Get Code at: https://www.elithecomputerguy.com/2020/12/arduino-read-serial-communication-with-raspberry-pi/

You can connect a Raspberry Pi to your Arduino with a USB cable and read the Serial Output into Variable Values.

Prerequisites:

Analog Temperature Sensor with Arduino
Raspberry Pi – How to Begin Coding Python on Raspberry Pi
Functional Parts in the Project:

Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3
Breadboard Kit – https://amzn.to/2Xih5ei
Analog Temperature Sensor – https://amzn.to/2Rkkl3k
Raspberry Pi 4 B
USB Cable