The Best Usb Function Generator of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Usb Function Generator of 2025. Check our ranking below.

2,117 Reviews Scanned

Rank No. #1

EC Buying Function Signal Generator, ZK-PP2K PWM Pulse Frequency Generator, 1Hz-150KHz PWM Motor Speed Regulation/LCD Pulse Frequency Cycle Module Adjustable Driver Module/PWM Signal Generator

★ZK-PP2K PWM/pulse signal generator product introduction: This series of products are PWM and pulse signal generators. There are PWM mode and pulse mode. Only one mode can be used at a time, but the two modes can be switched at any time.
★Product Specifications: 1.Working voltage:3.3~30V (note that the positive and negative poles should not be reversed, otherwise it may burn) 2.Frequency range:1Hz~150KHz, the accuracy is about 2%. Motor speed regulation generally chooses 20KHZ 3.Duty cycle range:0-100%,1% step 4.Number of pulses:1-9999, or infinite (display '---' means infinite) 5.Delay output time:0.000s-9999s, the minimum can be set to 1ms 6.Positive and negative pulse width length:0.000s-9999s, the minimum can be set to 1ms
★Product Highlights: 1. It can directly drive loads such as LEDs, motors, solenoid valves, etc. 2. Two modes can be selected: PWM mode - one frequency (continuous), duty cycle. Note that switching times cannot be set in this mode, always, cyclically on and off; PULSE pulse mode 1 - positive pulse width time, negative pulse width time, power-on delay start time, and switching times are adjustable. 3. With the start and stop button, 4. Wide voltage input 3.3-30V,5.08mm terminal wiring
★Key operation instructions: 1. MOS switch type output, pay attention to no waveform, can directly drive the motor solenoid valve, etc. 2. When the number of switches reaches the set value, the output will be automatically stopped, and 'OUT' will disappear. 3. Press the ON key to control the presence or absence of the switch, and the disappearance of OUT means the output is turned off. 4. Power on and restart or ON key to turn on the output, and recalculate the switching times.
★Application scenarios: 1. PWM signal generator, square wave rectangular wave signal generator. 2. Used to generate square wave and rectangular wave signal to control DC motor or stepper motor driver; used for servo motor, stepper motor, substitute PLC pulse, etc. 3. ZK-PP2K can be matched with the driver to realize dimming, speed regulation, control solenoid valve, etc. ZK-PP2K can directly drive loads such as electric light motor solenoid valve.

Rank No. #2

Analog Discovery 3: 125 MS/s USB Oscilloscope, Waveform Generator, Logic Analyzer, and Variable Power Supply

Oscilloscope: Two differential channels with 14-bit resolution at up to 125 MS/s per channel with a +/-25 V input range, 30+ MHz bandwidth with BNC Adapter; User-configurable input filters and lock-in amplifier; FFT, Spectrogram, Eye Diagram, XY Plot views, and more
Arbitrary Waveform Generator: Two channels with 14-bit resolution at up to 125 MS/s per channel with a +/-5 V output range, 12 MHz bandwidth with BNC Adapter; Standard waveforms, amplitude and frequency modulated signals, direct playback from analog inputs, custom waveforms, and more
Logic Analyzer and Pattern Generator: 16 digital I/O channels at up to 125 MS/s per channel; Individually-configurable 3.3 V digital inputs and outputs, 5 V tolerant inputs; SPI, I2C, UART, CAN, JTAG, ROM logic, custom protocols, and more
Programmable Power Supplies: 0.5 V to 5 V and -0.5 V to -5 V variable power supplies; Up to 800 mA per channel when used with an auxiliary power source
Additional software instruments including: Spectrum Analyzer, Network Analyzer, and Impedance Analyzer; Protocol Analyzer, virtual digital I/O such as buttons, switches, LEDs; Data logging, Voltmeter, in-app scripting

Rank No. #3

Digilent Analog Discovery 3 Pro - USB Oscilloscope, Function Generator, Logic Analyzer, Pattern Generator and Power Supply (Bundle)

Pro Bundle includes the Analog Discovery 3, BNC adapter and probes, and test clips.
2 channels, 14-bit resolution, 125 MS/s per channel (Oscilloscope and Waveform Generator)
16 digital I/O channels at up to 125 MS/s per channel (Logic Analyzer/Pattern Generator)
0.5 V to 5 V and -0.5 V to -5 V Variable Power Supplies
Free WaveForms software to capture, record, analyze, and generate mixed signal waveforms

Rank No. #4

SEESII DDS Functional Signal Generator: 1Hz-500kHz Portable Audio Signal Generator, Sine/Triangle/Square/Sawtooth Waveforms, USB-Powered, for Oscilloscope Testing & Circuit Debugging

This DDS signal generator features a frequency range of 1Hz to 500kHz; Compact yet high-performance, it is intuitive to operate and effortless to carry; Powered directly by USB, it requires no batteries or additional AC/DC adapter
Paired with an oscilloscope, it is ideal for electronic circuit testing and debugging, audio amplifier frequency and impulse response analysis, as well as oscilloscope sweep time factor calibration
The built-in square wave performs perfectly for oscilloscope attenuator adjustment and probe impulse response tuning; A switchable filter is also integrated to deliver optimized sine wave and pulse wave output
It supports output of sine, square, triangle, positive and negative sawtooth waveforms, serving as an essential professional tool for electronic engineering work

Rank No. #5

DROK Signal Generator 2pcs, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator

PARAMETER ---- operating voltage range DC 3.3v~30v; frequency range 1Hz-150kHz; output current 5-30mA; duty cycle range 0-100%.
APPLICATION ---- as square wave signal generator for experimental development; as square wave signal generator for motor driver; as adjustable pulse generator for MCU; as pulse generator, control related circuits (PWM dimming, speed regulating).
SERIAL COMMUNICATION ---- support serial communication, TTL level.
DATA AUTO STORAGE ---- all parameters will be saved automatically after setting and therefore won't lose when power off.
OTHER FEATURES ---- with LCD display to display frequency and duty cycle value; with case; PWM output, can set frequency and duty cycle separately by buttons; frequency value is divided into 4 range and switched automatically, with high precision.

Rank No. #6

EC Buying High Precision Function Signal Generator DIY Kit XR2206 Adjustable Frequency Amplitude Module Sine Triangle Square Output 1Hz-1MHz DC 9-12V

Can generate sine waves, triangular waves, and square waves
The frequency can range from 1HZ-1MHz; Frequency and amplitude adjustable
Five bit precision resolution; Frequency adjustment has coarse and fine tuning
Wide power supply range, can use external power supply 9-12V or 9V batteries
All direct insertion components have a small number of components and are easy to install and debug.

Rank No. #7

Relaxweex Adjustable Schumann Sine Wave Resonance Generator Ultra Low Frequency Generator Sound Frequency Machine with USB and Acrylic Case(0.1hz-100khz Set)

What You Get: it comes with a schumann resonance generator, an acrylic case with small magnet, a USB cable, an EVA storage case and an English user manual; Note: the acrylic case may have a glue smell, which can be dissipated by placing them in the sun or in a ventilated place for 2 to 3 days, and it is recommended to remove the film before application; The low frequency electromagnetic wave can be heard via the headphone
Adjustable Frequency: with an adjustable frequency range of 0.1 to 100000Hz, our sine wave generator allows you to set according to your needs for increased efficiency and personalization; The default frequency is 7.83Hz, and it can also be adjusted to 174Hz, 285Hz, 396Hz, 417Hz, 528Hz, 639Hz, 741Hz, 852Hz, 963Hz, and more
Multiple Waveforms: our sound frequency generator resonator provides multiple waveforms, namely sinusoidal, wave, and inverted wave, which is suitable for wider applications and various environments, such as laboratories and studios
Helping to Relax: the adjustable schumann resonance generator can emit sine waves to create a relaxing environment, support meditation, yoga practice or sleeping; It'll also be a warm gift for friends and families on birthday, Christmas and more
Portable Size: the frequency generator measures about 5.5 x 3.9 x 1.2 inches, and the acrylic box measures about 5.6 x 4 x 1.5 inches, which can cover the frequency generator well, and its small size and USB powered design, making it easy to carry and applied at home or when traveling

Rank No. #8

YERTAI ET3320C Signal Function Generator, 20MHz DDS Arbitrary Waveform Frequency Counter Machine with USB Communication,Dual Channels

【CONVENIENT OPERATION】 2.4-inch 320X240 TFT LCD with clear graphic interface; Light weight of frequency counter (about 600g)
【TECHNICAL PATAMETER】 Frequency range: 20MHz; Sampling rate: 200MSa/S; Vertical resolution: 13 bits
【FUNCTION】Built in 5 kinds of basic waveform and 32 kinds of arbitrary waveform; Support storing 50 sets of customized editing waveform internally; Equipped with 100MHz high precision frequency counter and 32-bit counter;
【OTHERS】USB device communication; Internal/external ASK, FSK, PSK modulation function; Equipped with multifunctional arbitrary waveform editing software( need to get from manufacturer)
【PACKAGING and AFTER-SALES】Function generator x1， US power cord x1, User manual x1; We provide ONE YEAR FREE WARRANTY, please feel free to contact us if any question.

Rank No. #9

Portable Power Station with AC Outlet Power Bank for Camping Essentials Small Electric Mini Generator Large Lithium Battery Plug in Output 60W Type-C Laptop Home Backup Outdoor Emergency 99.9Wh, Black

【99.9Wh High-Capacity Battery】With an impressive 99.9Wh battery capacity, our Tenlike portable power station ensures that you can keep your devices powered for extended periods, whether you’re camping, traveling, or facing a power outage at home. Note: 99.9Wh is the maximum capacity allowed by airlines
【Type-C 60W & 2/3-Prong Ports 120V 120W(MAX)】Type-C supports 60W PD fast charging, with an AC rated power of 80W and a maximum output of 120W. It can not only charge digital devices like phones, tablets, Switch, and drones, but also power small appliances with 2/3-prong plugs, such as laptops, fans, mini fridges, speakers, and photography lights
【6 Output Ports】Equipped with 6 versatile output ports, this power station is designed to meet 90% of your daily device charging needs. 1 AC Ports(2/3-Prong), 2 Type-C PD 60W Ports, 2 USB-C 15W, 1 DC 9-12V/10A
【Built-In 60W PD Fast Charging Cable】Our Tenlike power station features a built-in 60W PD fast charging cable, providing efficient charging for your devices. Quickly recharge your smartphone, tablet, or laptop, helping you stay powered up and connected when you need it most
【Reduce Size by 50%】Optimized design reduces the size by 50% compared to similar products, measuring 6.5 x 3.2 x 1.9 inches and weighing just 1.65 lbs (26.4 oz), making it more portable and space-efficient for all your camping needs

Rank No. #10

ENOFLO Portable Power Station, 97.68Wh Solar Generator, Lithium Battery Power with 110V AC 120W Peak Socket/DC/USB QC3.0/LED Light for Outdoor Indoor Use Trip Home Backup Emergency

High-Density Lithium Batteries & Compact Design: The portable power supply comes with a 26,400mAh /97.68Wh capacity lithium-ion battery pack.Its innovative hidden handle saves space while providing convenience, and it supports simultaneous charging—powering up the bank while charging your devices. Size only 5.7 x 4.4 x 4.1 inches and Weight 2.2 lbs. Perfect for emergencies, it keeps your mobile phones, laptops, iPads, PSPs, cameras, and wireless headphones powered wherever you go.
Efficient Output: This portable power station features 6 output ports, including 1 AC sockets (110V, 120W peak), 1 USB-C port (18W), 2 USB-A ports and 2 DC ports (12V/6A). The LED display clearly shows the working status and remaining power. Ideal for outdoor adventures, this power bank can power devices like night lights , mini fans, and below 120W other essential equipment, making it a reliable companion for your trips.
Camping Flashlight: A 3-level LED flashlight and a 2-level light panel are built into this portable generator; Press the LED flashlight switch to adjust brightness and SOS mode, and press the light switch to adjust brightness. For power outages,emergency kits, office supplies, hiking equipment and gadgets to suit your various needs, this battery generator with light is an ideal solution.
Three Recharging Modes：97Wh portable rechargeable power station with Three methods to charge the portable power station. 1. You can fully charge the power supply via AC outlet (adapter included) 2. It can be charged under the sun with a solar panel(13V-25V)(Solar Panel Not Included). 3. The power station can be charged by USB-C 9V-3A socket of the car efficiently. Cycle life >1000 times.
Secured & Assured: The Battery Management System (BMS) enables voltage control, temperature control, and other advanced safety operations. Designed with cooling vents on the back, this portable power supply maintains a stable temperature, ensuring its internal electrical components are not damaged by high heat. In the event of a short circuit or overload, it automatically shuts off the power to protect both itself and the connected devices.

Last update on 2026-06-07 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Usb Function Generator?

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Brand Value: Every brand of Usb Function Generator has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
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The Best Usb Function Generator of 2025 – Reviewed and Top Rated

How Do You Buy The Best Usb Function Generator?

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