![]() ![]() However, the resistance of LDR is inversely proportional to the intensity of light. ![]() As soon as the LDR is exposed to light, the resistance drops largely depending on the intensity of light. If the intensity of light is very low (dark), the resistance of LDR is very high. LDRs is used to indicate the presence or absence of light. ![]() In our electronic eye circuit, we have used light dependent resistor (LDR) to detect the presence of light that falls on the circuit.īefore starting with the design process of electronic eye circuit, let us discuss the working and function of two main components of the circuit i.e. Since the device is capable of working automatically, this eliminates the need of manual switching of the device and hence saves the manpower. Then according to the intensity of light this device turns ON the light when it becomes dark and vice versa.
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