Description: LM358 is also one of the types of operational amplifier. LM358 consists of two independent, high-gain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages.
This module can also be used for testing an LDR, a phototransistor and a photodiode. You just need to replace an LDR with phototransistor or photodiode, the circuit simply works. You can try this project using 741 IC also.
You can get more LM358 projects from the following links:
Project 1: LDR and LM358
This is a simple dark sensor circuit. When you block light falling on LDR, the LM358 switches on the LED.
Project 2: Photodiode and LM358
Remove LDR and insert a photodiode, it works instantly. Depending upon the light level of your room, you might have to adjust the variable resistor to adjust sensitivity of the circuit.
Project 3: Phototransistor and LM358
Remove LDR and insert a phototransistor, it works instantly. Depending upon the light level of your room, you might have to adjust the variable resistor to adjust sensitivity of the circuit.
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