Cheapest Link for the Components-
1.Arduino uno board:
https://amzn.to/3rEmRIe
2.servo 9g-
https://amzn.to/3ZIzMpa
3.16*2 lcd display with I2c module-
https://amzn.to/3RSW1Hj
4.buzzer-
https://amzn.to/3F7xOVO
5..rgb led-
https://amzn.to/46gvckz
6.jumper cables -
https://amzn.to/45jKFPq