Seeing that there is a light-controlled induction night light on the market, it is very interesting. It is actually quite simple, so I decided to try it.
120K resistor *1
The materials are assembled by circuit, and the fabrication is very simple. The following is the assembled product.
In the case of light, it will not light up.
The effect in dark conditions.
Remarks: I made it with NE555, you can also use LM393N.