Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display

Feature:1.LCD display frequency and duty cycle, very clear, PWM output can be set to the frequency and duty cycle;Wide frequency range, high precision;Serial communication, TTL levelPWM output, you can set the frequency, duty cycle;Working voltage: 3.3 ~ 30V;Frequency range: 1Hz ~ 150KHz; Description:Frequency is divided into four ranges, automatic switching:XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz;X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz;XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHzX.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHzfrequency display: 100 indicates PWM output 100Hz pulse;1.01 indicates PWM output 1.01K pulse;54.1 indicates that the PWM output has a pulse of 54.1 kHz;1.2.4 indicates that the PWM output is 124 kHz pulse;Duty cycle range: 0 ~ 100%;All set parameters, power-down automatically saved.Parameter settings:The module has four independent keys, used to set the frequency and duty cycle, support touch (increase or decrease a unit) and long press (fast increase or decrease), set the parameters automatically save, power down Not lost.Module parameters:Working voltage: 3.3 ~ 30V;Frequency range: 1Hz ~ 150KHz;Frequency accuracy: the accuracy in each range is about 2%;Signal load capacity: the output current can be about 5 ~ 30ma;Output amplitude: PWM amplitude equal to the supply voltage;Ambient temperature: -20 ~ +70 ¡æ.The scope of application:Used as a square wave signal generator, generate square wave signal for experimental development and use;Used to generate a square wave signal that controls the motor driver;generate adjustable pulse for MCU use;generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications).Serial control (single-chip TTL level communication)Communication standard:9600 bps Data bits: 8Stop bit: 1Check digit: noneFlow control: none1, set the frequency of the PWM"F101": Set the frequency to 101 HZ (001 to 999)"F1.05": set the frequency of 1.05 KHZ (1.00 ~ 9.99)"F10.5": Set the frequency to 10.5KHZ (10.0 ~ 99.9)"F1.0.5": set the frequency of 105KHZ (1.0.0 ~ 1.5.0)2, set the PWM duty cycle"DXXX": set the PWM duty cycle to XXX; (001 ~ 100)Such as D050, set the PWM duty cycle is 50%3, read the set parametersSend a "read" string to read the set parameters.Set successfully return: DOWN;Setup failed to return: FALL.Package Included£º1x PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator