1. All the materials we need in this project.
2. All the step’s screenshot.
3. Test it.
4. Diagram circuit.
Product list:
LED https://www.utsource.net/category/led-lighting-1.html
BC547/ BC548 https://www.utsource.net/sch/BC547
Resistor https://www.utsource.net/category/passive-components/resistors-1.html
Capacitor https://www.utsource.net/category/passive-components/capacitors-1.html
Buzzer https://www.utsource.net/sch/Buzzer
More details, pls check this video on Yotube: