Code and Diagrams at: https://www.elithecomputerguy.com/2020/12/arduino-temperature-web-app-with-raspberry-pi/
This project allows you to get a temperature value from the Arduino, pass it to the Raspberry Pi, have a Python Script process that value and store it in a file, then have a PHP Script read the file and create a dynamic web page. This is a simple project, but shows the concept of designing a system that hands tasks between different physical devices and programming languages.
Prerequisites:
Analog Temperature Sensor with Arduino
Raspberry Pi – How to Begin Coding Python on Raspberry Pi
Arduino – Send Commands with Serial Communication
Arduino – Send Serial Commands from Raspbery Pi
Arduino – Read Serial Communication with Raspberry Pi
PHP Programming (2019)
Functional Parts in the Project:
Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3
560 Piece Jumper Wire Kit – https://amzn.to/2MsCLjL
Breadboard Kit – https://amzn.to/2Xih5ei
Analog Temperature Sensor – https://amzn.to/2Rkkl3k
Raspberry Pi
USB Cable