Check the listing for details. PWM Frequency Generator 1Hz-150KHz Adjustable Pulse Duty Cycle Module DC3.3V-30V. Condition: New. Listed at 10.38 USD. ☆ Welcome☆ to ☆ my ☆ shop ☆ Description: 1. It's 1-channel PWM output signals. The Adjustable Frequency Range: from 1Hz to 150KHz. Please Note: 1Hz is the limit value. It is relatively large to receive external interference, such as wires or wireless or high temperature, so the fluctuation will be relatively large. It is recommended to use an output above 1Hz.2. Shell Protection and Clear LCD high definition Display: Display both Frequency and Duty Cycle in more clear status. High precision detection.3. Dual Work Mode. Support both Frequency Adjustment and Duty Cycle Adjustment. Support UART. Support enable output.4. Support power-down memory function: no need to set the data after power-off. Knob supports lock function to avoid misoperation.5. Wider Application: Square wave signal generator, generating square wave signal for experimental development, generating square wave signal that controls the motor driver, and generating adjustable pulses for MCU Dimmer; Dimmer; Speed governor, and so on. 1-Channel 1Hz-150KHz PWM Signal Generator with LCD Display and Rotary SwitchAdjustable ModuleThis signal generator is a device that provides electrical signals at a variety offrequencies, square wave, and output levels. It is used as a signal source or excitation source for testing. Widely used in production practice and technology.This Signal Generator has two work modes: Normal Mode & Precise Mode.Normal Mode:Frequency range 1Hz~150KHz. Duty cycle range 0.00%-100%. Duty cycle accuracy 1%.Precise Mode:Frequency range 1Hz~15KHz. Duty cycle range 0.00%-100%. Duty cycle accuracy 0.1%.Features1-channel Pwm Output, LCD High Definition DisplaySupport UartSupport Frequency AdjustmentSupport Duty Cycle AdjustmentHigh Precision DetectionSupport Power-down Memory FunctionDual Work Mode, Support Enable OutputKnob Supports Lock Function to Avoid MisoperationParameter:Work Voltage: DC 3.3V-30VFrequency Accuracy: 2%Duty Cycle Range: 0. 00%-100%Output Current: About 5-30mAOutput Amplitude: Same to input voltageWork Temperature: -104℉~185℉(-40℃~85℃)Work Humidity: 0%~95%RHUsing Step:We have uploaded the user manual on the Amazon page at Product guides and documents, Please download it before using.1. Connect to power supply2. Press rotary switch for 10second to switch Normal mode and Precise mode3. Short press rotary switch to set frequency and change value by rotating switch4. Press rotary switch for 2second to set duty cycle5. Keep press for 5second to lock set parameters6. Test7. Press button ‘ON/OFF’ to turn on or off PWM output8. Remove power and connect load to use module.Package included:1pcs DC3.3V-30V PWM Frequency Generator 1Hz-150KHz Adjustable Pulse Duty Cycle Module Shipping> We ship to worldwide.> Orders processed within 24-48 hours after payment verification.> We only ship to confirmed Paypal addresses. Your Paypal address MUST MATCH your Shipping address.CountryShipping WayShipping TimeTrackable United StatesUSPS(ePacket)7-18Yes RussiaChina Post15-35Yes Other CountryEconomic Air Mail15-40NoIf you need register mail or other express shipping, Pls contact us. Warranty & Guarantee> Good good quality. Buy with confidence!> Returned & Guarantee. If not satisfied with the item, you can choose to return it for a replacement or money back. We afford all cost if it's our fault. Exchange or refund.Please contact me before you return it. full refund after we receive our original item.> We maintain high standards of excellence and strive for 100% customer satisfaction! Positive feedback is very important to us. We request that you contact us BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns Contact us> Our goal is customer satisfaction!> Our Working-time From 8:30 AM to 21:30 PM(GMT+08) .> We strive to provide you with the best service, we will reply your question within 24 hours.( IF have any problem, we will appreciate that you contact us first BEFORE open a dispute or request, we will try our best to solve the problem with you. ) Payment> We accept Paypal only, It is fast, easy and safe.> Payment must be completed within 7 days.> PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. About me Please contact me first before you leave a negative review if my item are damaged or defective when you got it, I'll do resend or refund (as your choice) once I confirm with that, which is a most kind of favourable way to both of us work things out together.Your support and comprehension are highly appreciated for me. Thanks for everything, and at last, I full of expectation to do business with you!!!!