Use simple materials to make a short circuit alarm switch

We need the following materials

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Arrange the components to be soldered on the breadboard

Solder the circuit in order

Input and output of welding power cord

Circuit diagram principle

Controlled experiment

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IC chips: https://www.utsource.net/category/ele...

Modules: https://www.utsource.net/Modules?sour...

Passive components: https://www.utsource.net/PassiveDevic...

Sensors: https://www.utsource.net/home/sensors...

LED lightings: https://www.utsource.net/category/led...