PWM pulse frequency duty cycle adjustable module square wave rectangular wave signal generator XY-PWM1

PWM pulse frequency duty cycle adjustable module square wave rectangular wave signal generator XY-PWM1

Module Highlights:

1. Dual mode, fine mode duty cycle step0.1 percent;

2.LCD LCD display frequency and duty cycle, very clear,  it is very convenient to adjust by coding potentiometer; PWM output frequency and duty cycle can be set separately;

3. With locking function, misoperation;

4. Wide frequency range and high precision;

5. Can be serial communication

1. Module Description

PWM output, frequency and duty cycle can be set respectively;

Normal mode:

Frequency range1HZ ~ 150KHZ duty cycle000 ~, duty cycle step1%

Fine Mode:

Frequency range1HZ ~ 15KHZ duty cycle00.0 ~, duty cycle step0.1 percent

Frequency is divided into four ranges, automatic switching:

1.XXX ( no decimal point): units are1Hz, value range1Hz ~ 999Hz;

2.X.XX(decimal point in hundred) units are0.01Khz, value range1.00Khz ~ 9.99Khz;

3.XX.X ( decimal point in ten): units are0.1Khz; Value range10.0KHz ~ 99.9KHz

4.X.X. X ( decimal points in ten and hundred digits): units are1Khz; Value range1KHz ~ 150KHz

e.g. Frequency display:100 representation PWM output100Hz the pulse;

1.01 representation PWM output1.01K the pulse;

54.1 representation PWM output54.1KHz the pulse;

1.2.4 representation PWM output124KHz the pulse;

Duty cycle value range:0 ~;

All set parameters, power down to save.

2. parameter settings

This product through the rotary potentiometer to adjust the frequency and duty cycle, according to the rotation speed to determine the realization of rapid adjustment, the default adjustment duty cycle, short press to adjust the frequency, long press2 seconds lock, long press5 seconds switching mode (normal mode/ fine mode), the operating is simple, the parameters are automatically saved after setting, and the power failure is not lost.

3. module parameters:

1. Operating voltage:3.3~30V;

2. Frequency range: Normal mode1Hz ~ 150KHz; Fine Mode1HZ ~ 15KHZ;

3. Frequency accuracy: The accuracy on each range is2% left and right;

4. Signal load capacity: the output current can be in5 ~ 30ma left and right;

5. Output amplitude: PWM the amplitude is equal to the supply voltage;

6. Ambient temperature:-20 to +70 c.

7. Weight: 42g

4. scope of application:

1. Used as a square wave signal generator to generate square wave signals for experimental development and use;

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

3. Generate adjustable pulses MCU use;

4. Generate adjustable pulses and control related circuits ( PWM applications such as dimming speed regulation).

5. serial port control(MCU TTL level communication)

communication standard:9600 bps

data bit: 8
stop bit: 1
check digit:none
flow control:none

1. Setup PWM the frequency 

F101: set frequency101 HZ (001~999)

F1.05: set frequency1.05 KHZ (1.00~9.99)

F10.5: set frequency10.5KHZ (10.0~99.9)

F1.0.5: set frequency105KHZ (1.0.0~1.5.0)

Note: fine mode, the frequency is15.0Khz

2. Set PWM the duty cycle

Normal mode:

DXXX : setup PWM the duty cycle XXX;(001-100)

For example D050, setting PWM the duty cycle is50%

Fine Mode:

DXX.X : setup PWM duty cycle is XX.X(00.1~100)

            For example D20.8, setup PWM the duty cycle is20.8 percent

3. Read the setting parameters

Send" read"String to read the set parameters.

4. Switch mode

MODE0: normal mode

MODE1: fine Mode

Set successful return: DOWN;

Setting failure returns: FALL.