brand new and high quality<br> Signal generator is a device that provides electrical signals at a variety of frequencies, square wave, and output levels.It is used as a signal source or excitation source for testing.Widely used in production practice and technology.<br> <br> Features:<br> With outer casing<br> LCD high definition display<br> Support UART<br> Support frequency adjustment<br> Support duty cycle adjustment<br> High precision detection<br> Support power-down memory function<br> 1-Channel PWM output<br> Frequency set range:<br> Enter the settings interface when short press any button FREQ+ or FREQ- in the normal running status to select frequency range.Automatically switch frequency range.<br> Pay attention to the position where the decimal point moves when the button is pressed.<br> Display XXX.No decimal point,The minimum frequency is 1Hz.The frequency range is 1Hz ~ 999Hz.<br> Display X.XX.The decimal point is the penultimate, The minimum frequency is 0.01KHz.The frequency range is 1.00KHz ~ 9.99KHz.<br> Display XX.X.The decimal point is the third last,The minimum frequency is 0.1KHz.The frequency range is 10.0KHz ~ 99.9KHz.<br> Display X.X.X.The decimal point is fully lit,The minimum frequency is 1KHz.The frequency range is 1KHz ~ 150KHz.<br> For example:<br> Display 100 means PWM output frequency is 100Hz;<br> Display 1.01 means PWM output frequency is 1.01KHz;<br> Display 54.1 means PWM output frequency is 54.1KHz;<br> Display 1.2.4 means PWM output frequency is 124KHz;<br> Duty cycle set range:<br> Enter the settings interface when short press any button DUTY+ or DUTY- in the normal running status to select duty cycle.Automatically switch frequency range.<br> Duty cycle range is 0.00%-.<br> Use steps:<br> Connect to power supply;<br> Short or long press button FREQ+ or FREQ- to set frequency;<br> Short or long press button DUTY+ or DUTY- to set duty cycle<br> Connect to load.<br> UART communication and parameter settings:<br> The system supports UART data upload and parameter setting functions (TTL level);<br> UART: 9600, 8, 1<br> 1.Set PWM frequency:<br> F101 :Set frequency is 101Hz.101 can by replace by 001~999;<br> F1.05 :Set frequency is 1.05KHz.1.05 can by replace by 1.00~9.99;<br> F10.5:Set frequency is 10.5KHz.10.5 can by replace by 10.0~99.9;<br> F1.0.5 :Set frequency is 105KHz.1.0.5 can by replace by 1.0.0~1.5.0;<br> 2.Set PWM duty cycle:<br> DXXX :Set duty cycle is XXX. XXX can be 000-100.<br> E.g:D051 means PWN duty cycle is be set as 51%.<br> 3.Read set<br> parameter:<br> Send read and then get parameter.<br> 4.Return value:<br> Return DOWN :Set success.<br> Return FALL :Set fail.<br> Application:<br> 1.Square wave signal generator, generating square wave signal for experimental development;<br> 2.Used to generate a square wave signal that controls the motor driver;<br> 3.Generate adjustable pulses for use by the MCU;<br> 4.Dimmer;<br> 5.Speed governor;<br> Notice:<br> It's 1-channel PWM output signals are the same.They can not adjust independently.<br> <br> Specification:<br> Product name: PWM Signal Generator<br> Work voltage:DC 3.3V-30V<br> Frequency range:1Hz~150KHz<br> Frequency accuracy:2%<br> Duty cycle range:0.00%-<br> Output Current:About 5-30mA<br> Output amplitude:Same to input voltage<br> Operating temperature:-20~70<br> Material: Plastic<br> Color: Black<br> Size:app. 78 x 26 x 42mm / 3.07 x 1.02 x 1.65in<br> Quantity: 1 pc<br> <br> Note:<br> Transition: 1cm=10mm=0.39inch<br> No retail package.<br> Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you<br> <br> Package includes:<br> 1 x PWM Signal Generator(other accessories demo in the picture is not included.)