---
product_id: 207222767
title: "2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz"
brand: "hiletgo"
price: "€ 21.94"
currency: EUR
in_stock: true
reviews_count: 9
category: "Hi Letgo"
url: https://www.desertcart.de/products/207222767-2pcs-3-channel-pwm-pulse-generator-signal-generator-module-adjustable
store_origin: DE
region: Germany
---

# Auto-save settings on power loss 3 independent PWM channels Adjustable frequency 1Hz-150kHz 2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz

**Brand:** hiletgo
**Price:** € 21.94
**Availability:** ✅ In Stock

## Summary

> ⚡ Master your signals with precision and speed — don’t get left behind!

## Quick Answers

- **What is this?** 2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz by hiletgo
- **How much does it cost?** € 21.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/207222767-2pcs-3-channel-pwm-pulse-generator-signal-generator-module-adjustable)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Memory Backup:** Never lose your settings thanks to automatic save during power interruptions.
- • **User-Friendly Interface:** 8 dedicated keys with short & long press for fast, intuitive parameter setting.
- • **Wide Frequency Spectrum:** Seamlessly tune frequencies from 1Hz up to 150kHz to fit any project need.
- • **Triple Channel Precision:** Control three PWM outputs independently for ultimate customization.
- • **Instant Duty Cycle Control:** Real-time, multi-button duty ratio adjustments for dynamic signal shaping.

## Overview

The HiLetgo 2pcs 3 Channel PWM Pulse Generator Module delivers versatile, high-precision square wave and rectangular wave signals with independently adjustable frequency (1Hz-150kHz) and duty cycle. Featuring an intuitive LCD display and 8 control keys, it supports real-time multi-channel adjustments and auto-saves settings to prevent data loss. Ideal for motor control, MCU pulse generation, and experimental development, this compact module empowers professionals to fine-tune PWM signals with ease and reliability.

## Description

Description: Three-channel PWM is outputted,wide frequency range and the duty ratio can be adjusted independently Frequency is divided into four areas,automatic switching: 1.XXX(No decimal point): 1HZ Stepping Unit,Range:1Hz~999Hz; 2.X.XX(The decimal is in the hundreds place):0.01KHZ Stepping Unit,Range: 1.00Khz~9.99Khz; 3.X.XX(The decimal is in the tens place):0.1KHZ Stepping Unit,Range: 10.0Khz~99.9Khz; 4.X.X.X(The decimal is in the ones place):1KHZ Stepping Unit,Range: 1Khz~150Khz; e.g. ,frequency display:100 represent the pulse of 100Hz ; 1.01 represent the pulse of 1.01KHz; 54.1 represent the pulse of 54.1KHz 1.2.4 represent the pulse of 124Hz The value range of dutyfactor: 0~100%,100% is represented by A0%. All parameters setted up can be automatically saved in case of power cut. Parameter: Has 8 independent keys,used to set the frequency and duty ratio,support short press (increase or decrease a unit) and long press (fast increase or decrease),very simple,set the parameters automatically save,power loss. 3-Way duty ratio button can be pressed at the same time,real-time adjustment, liquid crystal display is the last pressed button duty ratio,real-time is very strong,can be used as a simple several road duty ratio scan. Applications: 1.Used as square wave signal generator to generate square wave signal for experiment development and use 2.Used to generate a square wave signal to control the motor driver; 3.Generating adjustable pulses for MCU use; 4.Generate adjustable pulse, control related circuit (PWM dimming speed and other applications). Package included: 2* 3 Channel PWM Pulse Generator Module Adjustable Frequency

Review: Quality module and works great! - Good quality module with a nice durable build. It does exactly what it is supposed to do and I didn't have any problems at all. I used this as a stand-alone module to manually dim a 5mm LED and power a 6v dc motor. You can also add a trigger (button/pir motion sensor/photoresistor...etc) to turn the module on and off. I added a momentary button to start and stop the motor. You can also use this precision module for: *Servo Motor Position Control *Pulse Width Modulation for Heating Elements *Tone Generation for Buzzers and *Light Flasher/Strobe to name a few You can attach a fan blade to a dc motor shaft and use it with an oscilloscope for educational purposes. Using a flan blade and motor shaft setup to view waveforms on an oscilloscope helps in understanding the conversion of mechanical motion into electrical signals, the characteristics of periodic signals, and practical applications of sensors and signal processing. It’s a hands-on method that makes abstract concepts more concrete and easier to grasp. Keep in mind: While a PWM module can dim 5mm LEDs effectively, it is not suitable for controlling WS2812B LEDs due to their need for precise digital signaling. For WS2812B, use a dedicated LED controller or a microcontroller capable of handling the required digital communication. You can use this module with basic digital servo motors but you will need to manually change duty cycle for position control. For better servo control, you might want to consider a dedicated servo controller or a PWM driver board designed specifically for servos, which can provide the necessary resolution, accuracy, and power to ensure optimal performance.
Review: Works Great for short pulses - Very adjustable.

## Features

- *3 Channel PWM Pulse Generator Signal Generator Module.
- *Adjustable Frequency Square Wave Rectangular Wave Signal Generator.
- *Three-channel PWM is outputted,wide frequency range and the duty ratio can be adjusted independently.
- *Has 8 independent keys,used to set the frequency and duty ratio,support short press (increase or decrease a unit) and long press (fast increase or decrease),very simple,set the parameters automatically save,power loss.
- *3-Channels duty ratio button can be pressed at the same time,real-time adjustment, liquid crystal display is the last pressed button duty ratio,real-time is very strong,can be used as a simple several road duty ratio scan.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082F6FTBT |
| Best Sellers Rank | #106,130 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #43 in Function Generators |
| Date First Available | December 6, 2019 |
| Item Weight | 1.72 ounces |
| Item model number | 3-01-1578 |
| Manufacturer | HiLetgo |
| Package Dimensions | 4.02 x 3.98 x 0.63 inches |

## Images

![2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz - Image 1](https://m.media-amazon.com/images/I/61JrQg1yAUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality module and works great!
*by K***R on August 19, 2024*

Good quality module with a nice durable build. It does exactly what it is supposed to do and I didn't have any problems at all. I used this as a stand-alone module to manually dim a 5mm LED and power a 6v dc motor. You can also add a trigger (button/pir motion sensor/photoresistor...etc) to turn the module on and off. I added a momentary button to start and stop the motor. You can also use this precision module for: *Servo Motor Position Control *Pulse Width Modulation for Heating Elements *Tone Generation for Buzzers and *Light Flasher/Strobe to name a few You can attach a fan blade to a dc motor shaft and use it with an oscilloscope for educational purposes. Using a flan blade and motor shaft setup to view waveforms on an oscilloscope helps in understanding the conversion of mechanical motion into electrical signals, the characteristics of periodic signals, and practical applications of sensors and signal processing. It’s a hands-on method that makes abstract concepts more concrete and easier to grasp. Keep in mind: While a PWM module can dim 5mm LEDs effectively, it is not suitable for controlling WS2812B LEDs due to their need for precise digital signaling. For WS2812B, use a dedicated LED controller or a microcontroller capable of handling the required digital communication. You can use this module with basic digital servo motors but you will need to manually change duty cycle for position control. For better servo control, you might want to consider a dedicated servo controller or a PWM driver board designed specifically for servos, which can provide the necessary resolution, accuracy, and power to ensure optimal performance.

### ⭐⭐⭐⭐⭐ Works Great for short pulses
*by A***N on October 18, 2025*

Very adjustable.

### ⭐⭐⭐⭐⭐ Easy to use
*by N***O on March 10, 2024*

I think I only cursed once setting this up to drive a pulsing electromagnetic wave. It's an interesting device. If you have an oscilloscope, grab a pair of these. It's a good use of an evening.

## Frequently Bought Together

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-25*