Signal PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display 1Hz-150Khz 3.3V-30V PWM Board Module

Descrtion: 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 level; Module Feature: PWM output, you can set the frequency, duty cycle; 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 - 99.9KHz X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz - 150KHz Frequency 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 pre (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 degree Application: Used as a square wave signal , 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-ch TTL level communication) Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none 1, 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 parameters Send a "read" string to read the set parameters. Set succefully return: DOWN; Setup failed to return: FALL.

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