Depending upon the light level of your room, you might have to adjust the variable resistor to adjust sensitivity of the circuit. For a detailed description of pinout, dimension features, and specifications download the datasheet of LM358. ![]() Remove LDR and insert a phototransistor, it works instantly. ECAD Model: Download the free Library Loader to convert this file for your ECAD Tool. Depending upon the light level of your room, you might have to adjust the variable resistor to adjust sensitivity of the circuit. LM358N Operational Amplifier: Pinout, Datasheet, and Schematic. Remove LDR and insert a photodiode, it works instantly. When you block light falling on LDR, the LM358 switches on the LED. ![]() You can get more LM358 projects from the following links: You can try this project using 741 IC also. You just need to replace an LDR with phototransistor or photodiode, the circuit simply works. This module can also be used for testing an LDR, a phototransistor and a photodiode. ![]() LM358 consists of two independent, high-gain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. Description: LM358 is also one of the types of operational amplifier.
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