Frequency Adjustable Pulse Generator Module NE555

Product Description:

Frequency Adjustable Pulse Generator Module NE555

• This module is a square wave signal generator based on the NE555 timer IC. It allows for adjustment of both pulse frequency and duty cycle, although these parameters are interdependent. The output signal is a single channel with an approximate duty ratio of 50%.
• The module can generate pulse frequencies ranging from about 4Hz to 1.3kHz, depending on the frequency adjustment knob setting. It features a power indicator LED and operates the NE555 timer IC in astable mode, making it suitable for applications like stepper motor control and testing.
• The NE555 timer IC is a versatile component used for various timing, pulse generation, and oscillator functions. It can function as a timer, oscillator, or flip-flop, and comes in multiple variants that can offer up to four timing circuits in one package. Introduced by Signetics in 1971, it remains popular due to its simplicity, low cost, and reliability, available in both bipolar and low-power CMOS versions.
• This module is perfect for producing square wave signals for experimental development or motor driving, and it provides adjustable pulses for microcontrollers and other pulse-controlled circuits

Features

• Color: Blue
• Working voltage: 5-12V
• Frequency range: 3.7 Hz to 1.3 kHz
• Duty cycle range: 50% to 98%
• Quality: Brand new and high quality!
• Output: Single channel, square wave with approximately fifty percent duty cycle.
• Adjustment: Onboard variable resistor to control the output frequency.

Specification

Package Includes

• 1 x Frequency Adjustable Pulse Generator Module NE555

Frequency Adjustable Pulse Generator Module NE555 Overview

The Frequency Adjustable Pulse Generator Module NE555 is a compact breakout board that generates a stable square wave signal using the classic NE555 timer IC in astable mode. It’s designed for users needing a single-channel pulse output with tunable frequency and duty cycle, ideal for prototyping and testing electronic circuits.

Key Features of Frequency Adjustable Pulse Generator Module NE555

• Adjustable frequency range from approximately 4 Hz up to 1.3 kHz via a built-in potentiometer
• Duty cycle variability between 50% (min) and 98% (max) for PWM-like applications
• Operates on a wide input voltage of 5–15 VDC with output amplitude from 4.2 Vpp to 11.4 Vpp
• Output current capability: 15 mA at 5 V supply, 35 mA at 12 V supply
• Power indicator LED and compact dimensions (25 × 13 × 12 mm) for space-saving integration
• Genuine module, fast shipping from Zbotic.in across India

Applications and Use Cases

• Generating clock pulses for digital logic testing or microcontroller timing verification
• Controlling stepper motors or DC motor speed via adjustable duty cycle signals
• Flashing LEDs or driving light chasers in decorative and educational projects
• Prototyping audio tone generators and simple beepers with stable square waves
• Testing response and timing in sensor circuits by providing a known pulse train

How to Use Frequency Adjustable Pulse Generator Module NE555

Connect the 5–15 VDC supply to the VCC and GND pins, then attach your load or measurement device to the output pin. Power LED confirms module operation. Rotate the frequency adjustment knob to set the desired pulse rate; duty cycle shifts automatically with frequency. Use an oscilloscope or multimeter’s frequency function to fine-tune output parameters.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
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• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

Can I get less than 50% duty cycle with this module?

No. Due to the NE555’s astable configuration and onboard component values, the minimum achievable duty cycle is approximately 50%.

What is the maximum output current I can draw?

The module provides up to 15 mA of output current at a 5 V supply and up to 35 mA at 12 V. Draw beyond these ratings may distort the output waveform.

How do I measure the output frequency accurately?

Use an oscilloscope or a digital multimeter with a frequency measurement function on the module’s OUT terminal relative to ground. Adjust the potentiometer until you reach the target frequency.