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Frequency Generator, DROK DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module

Frequency Generator, DROK DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module

Q: Will this work as a 7.83 hz (schumann resonance) generator to infuence ambient room frequency....or does this have totally unrelated applications?

First off I know nothing about the application that you are interested in using this for. That being said this unit doesn't have the ability to dial down to .83 hz only whole numbers. The output is DC square wave. Hope this helps.

Q: how do you keep the control on frequency instead of keeping defaulting to duty cycle setting? It is very difficult to control frequency due to this.

This is not the pulse generator you are looking for. This is a fixed frequency, varible width PEM generator. I think what you are looking for is something like this:"Radio Control Servo ESC Consistency Digital Tester 1-4S for Speed Controller" or "Electronic Speed Controller Servo Tester ESC for RC Airplane Helicopters" Both on EBAA

Q: how can I connect this device to speakers and what do I need to do so?

this is a frequency generator not a radio. even if you could all you would get is noise.

Q: Will this work for a diy "chaterbox" which would push no more than 20-24v in a pulse format every 3-5 seconds. with 2 9v batteries as input?

As long as you do not have a load that draws more than 25ma

4.2/5

Product ID: 356685058

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⚡3.3V-30V wide voltage range

💾Auto-save settings memory

📶1Hz-150kHz frequency span

Frequently Bought Together

DROK Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module

DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator

HiLetgo 2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz

Description

⚙️ Unlock precision pulses and power your projects like a pro!

LOCK LOAD CONFIDENCE - Lock function prevents accidental changes—stay in control, always.
SMART AUTO SAVE MEMORY - All your custom settings are saved automatically, so you never lose your perfect setup.
DYNAMIC FREQUENCY RANGE - Generates signals from 1Hz to a blazing 150kHz, covering all experimental bases.
PRECISION AT YOUR FINGERTIPS - Dual modes with up to 0.1% duty cycle step for ultra-accurate signal tuning.
VERSATILE VOLTAGE COMPATIBILITY - Operates seamlessly from 3.3V to 30V to fit diverse project needs.

The DROK Frequency Generator is a compact, high-performance PWM pulse signal module designed for professionals and hobbyists alike. Operating across a broad 3.3V to 30V range, it delivers adjustable square wave outputs from 1Hz up to 150kHz with 2% frequency accuracy. Featuring dual modes for normal and ultra-accurate control, an intuitive LCD display, lock function to prevent misoperation, and automatic data saving, it’s ideal for experimental development, motor drivers, MCU pulse generation, PWM dimming, and speed regulation applications.

Specifications

Brand	DROK
Manufacturer	DROK
Country of Origin	USA
Model number	200393
Number of Memory Sticks	1
Item Weight	10 g
Package Dimensions	10.21 x 9.3 x 3.99 cm; 10 g
Item model number	200393
Are batteries included?	No

Have a Question? See What Others Asked

Will this work as a 7.83 hz (schumann resonance) generator to infuence ambient room frequency....or does this have totally unrelated applications?

how do you keep the control on frequency instead of keeping defaulting to duty cycle setting? It is very difficult to control frequency due to this.

how can I connect this device to speakers and what do I need to do so?

Will this work for a diy "chaterbox" which would push no more than 20-24v in a pulse format every 3-5 seconds. with 2 9v batteries as input?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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5171₴

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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