Introduction

This experiment shows how to configure the NE555 timer IC in astable mode to generate a square wave with adjustable frequency.

Materials Required

• NE555 Timer IC
• Resistors
• Capacitor
• Power Supply
• Breadboard and jumper wires

No Ads Available.

Circuit Diagram

The NE555 timer is configured in astable mode with resistors and a capacitor to generate a square wave signal. The frequency can be adjusted by changing the resistor and capacitor values.

Steps for the Experiment

1. Assemble the NE555 timer in astable mode according to the circuit diagram.
2. Use a variable resistor to adjust the frequency of the generated square wave.
3. Use an oscilloscope or a frequency counter to measure the output frequency.

Explanation

The frequency of the square wave is determined by the values of the resistors and capacitor in the NE555 timer circuit. Adjusting these components changes the timing cycle of the output signal.

Results and Observations

• The output frequency should change as the resistor is adjusted, and the oscilloscope should show a square wave signal with the corresponding frequency.