LDR Photoresistor module

ตัวต้านทานปรับค่าตามแสง LDR

LDR  photoresistor photoelectric switch element photodetector element 5MM

DESCRIPTION

Photo resistors, also known as light dependent resistors (LDR), are light sensitive devices most often used to indicate the presence or absence of light, or to measure the light intensity.

In the dark, their resistance is very high, sometimes up to 1MΩ, but when the LDR sensor is exposed to light, the resistance drops dramatically, even down to a few ohms, depending on the light intensity.

LDRs have a sensitivity that varies with the wavelength of the light applied and are nonlinear devices.

The module can also be used to measure light intensity and allows for easy sensing of light levels for you microprocessor projects.

• KY-018 : LDR breakout board
• Voltage : 3.3v to 5v
• Output : Analogue
• 3 Pin