1. Materials we need in the project.

2. Screenshot for some steps.

3. Finish and test.

Product list:

D882 https://www.utsource.net/itm/p/1310267.html

100K resistor  https://www.utsource.net/sch/100k%20resistor

Buzzer  https://www.utsource.net/itm/p/8027239.html

More details, pls check the video on Youtube: