Liquid Crystal Display PWM Module 1Hz-150Khz 3.3V-30V Signal Generator

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Liquid Crystal Display PWM Module 1Hz-150Khz 3.3V-30V Signal Generator

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    Categories :
    Signal Generator
    SKU :
    1941174
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    Parameters:

    • Operating voltage3.3~30V;

    • Frequency range1Hz~150KHz;

    • Frequency accuracy:In each range of accuracy is about 2%

    • Signal load capacity:Output current can be around 5~30ma

    • Output amplitude: PWM amplitude and supply voltage equal 

    • Ambient temperature:-20~+70°

    Module Description:

    • Three-channel PWM  is outputted,wide frequency range and the duty ratio can be adjusted independently

    • Frequency is divided into four areas,automatic switching:

    • 1.XXX(No decimal point): 1HZ Stepping Unit,Range:1Hz~999Hz;

    • 2.X.XX(The decimal is in the hundreds place):0.01KHZ Stepping Unit,Range: 1.00Khz~9.99Khz;

    • 3.X.XX(The decimal is in the tens place):0.1KHZ Stepping Unit,Range: 10.0Khz~99.9Khz;

    • 4.X.X.X(The decimal is in the ones place):1KHZ Stepping Unit,Range: 1Khz~150Khz;

    • e.g. ,frequency display:100 represent the pulse of 100Hz ;

    • 1.01 represent the pulse of 1.01KHz; 

    • 54.1 represent the pulse of 54.1KHz

    • 1.2.4 represent the pulse of 124Hz

    • The value range of dutyfactor: 0~100%,100% is represented by A0%.

    • All parameters setted up can be automatically saved in case of power cut.

    Parameter settings:

    • Module has 8 independent keys,used to set the frequency and duty ratio,support short press (increase or decrease a unit) and long press (fast increase or decrease),very simple,set the parameters automatically save,power loss.

    • 3-Way duty ratio button can be pressed at the same time,real-time adjustment, liquid crystal display is the last pressed button duty ratio,real-time is very strong,can be used as a simple several road duty ratio scan.

    3).Scope of application:

    • 1.Used as square wave signal generator to generate square wave signal for experiment development and use

    • 2.Used to generate a square wave signal to control the motor driver;

    • 3.Generating adjustable pulses for MCU use;

    • 4.Generate adjustable pulse, control related circuit (PWM dimming speed and other applications).

    4).UART serial command

    • Baud rate:9600 bps Data length:8

    • Stop bits:1

    • Check digit:none

    • Flow control:none

    1.set the frequency of the PWM 

    • "F101": Set frequency of 101 HZ (001~999)

    • "F1.05": Set frequency of 1.05 KHZ(1.00~9.99)

    • "F10.5": Set frequency of 10.5KHZ(10.0~99.9)

    • "F1.0.5":Set frequency of 105KHZ(1.0.0~1.5.0)

    2.set the duty ratio of PWM

    • "DX:YYY": Set PWM duty ratio x: (1~3) PWM serial number,YYY: (000~100) duty ratio;

    • For example d1:050,set 1th PWM duty ratio to 50%

    3.read setup parameters:

    • Send a "read" string to read the parameters of the setting.

    • Message format:F156,D1:052,D2:059,D3:058,

    • Set successful return:DOWN

    • Set failed to return:FALL

    • Size:5.5x3.8cm/2.17x1.50inch