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Showing posts from July, 2025

LDR sensor

  LDR Sensor Today, I made a circuit using an LDR(Light Detecting Resistor) sensor. An LDR sensor works on the amount of light present. To make this circuit, we need the following things: LDR sensor Breadboard LED Buzzer Jumper wires 9V battery To make the circuit, follow the following steps:      Step 1: Connect the positive and negative terminals on the breadboard to make them common.     Step 2: Connect the VCC of the sensor to the common positive on the breadboard.     Step 3:   Connect the GND of the sensor to the common negative on the breadboard.     Step 4: Connect the  negative  of the LED and the Buzzer to a vertically connected line.     Step 5:  Connect the  positive  of the LED and the Buzzer to the common  positive  line.     Step 6:  Connect the DO(Data output)of the sensor to the line where the  negative  of the LED and the Buzzer are  on th...