build me sqlite3 database python

i have some data broadcasting over serial port /dev/ttyUSB0 baud:9600
i need a python code to capture arduino sensors data and then dump them in SQLite database

your job is to create an easy to use code well documented so i can understand it

I uploaded arduino code

I only writen the below python code so that to display the sensor value to the cmd of raspberry pi

```
import serial

ser = serial.Serial('/dev/ttyUSB0',9600)

while True:
read_serial=ser.readline()
print(read_serial)
```

My hardware:
arduinos with 3 sensors
I run python into raspberry pi.