![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFeUTuORehxLCn1YKbsqwwx5eQLUjwrMcRakwbbEsE0HB3vGgqLVJljUCE7t9DYbe_1hcBOwVnBWVHFR652Gctrj0qqfDnXFzVL1wib9R2NDOJQGIzkf6_kb0b_lmJ0-pVFSFdW_Rue3s/s1600/Vongchann-Electronic---Photoresistor.png)
Photoresistor
How it works
This sensor can be called light-dependent resistor, LDR, or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity.
This sensor can be called light-dependent resistor, LDR, or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFeUTuORehxLCn1YKbsqwwx5eQLUjwrMcRakwbbEsE0HB3vGgqLVJljUCE7t9DYbe_1hcBOwVnBWVHFR652Gctrj0qqfDnXFzVL1wib9R2NDOJQGIzkf6_kb0b_lmJ0-pVFSFdW_Rue3s/s1600/Vongchann-Electronic---Photoresistor.png)
Circuit:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrTDqQCyA561fa292tbocBgsZeVI07gazgcRWBRk-3DDChWzJAlCXPkW1U4_V_os7sobMwOUtXsW38mKtVtwBAUulfXosNt1tk_9EOx0FDvt1j4ta9lMantsjDPUL-Q3mLlsugL-AxtCc/s1600/Vongchann-Electronic-PhotoResistor-Circuit.jpg)