PWMPulse frequency duty cycle, adjustable module square wave rectangular wave signal generator xy-pwm1 

Module highlights:

1.Double mode, the duty ratio of the duty ratio in fine mode is stepped into0.1%Items

2.LCDLCD display frequency and duty cycle, very clear, It is very convenient to use encoding potentiometer adjustment;PWMThe output can set the frequency and the duty ratio respectively;

3.With locking function to prevent misunderstanding;

4.The frequency range is wide and the accuracy is high;

5.Cable communication

1. Module description

PWMOutput, you can set the frequency and duty ratio;

Ordinary mode:

Frequency Range1HZ~150KHZ Duty ratio000~100%, Step in the duty ratio1%

Fine mode:

Frequency Range1HZ~15KHZ Duty ratio00.0~100%, Step in the duty ratio0.1%

Frequency is divided into four range, automatic switchingThe

1.XXX(No small number): The smallest unit is1Hz,Ranges1Hz~999HzItems

2.X.XX(Timing at 100 points) The smallest unit is0.01Khz,Ranges1.00Khz~9.99KhzItems

3.XX.X(The decimal point is at ten): The smallest unit is0.1Khz;Ranges10.0KHz~99.9KHz

4.X.X.X (The decimal point is at ten and hundreds): The smallest unit is1Khz;Ranges1KHz~150KHz

e.g. Frequency display:100 expressPWMOutput100HzPulse;

                        1.01expressPWMOutput1.01KPulse;

                        54.1 expressPWMOutput54.1KHzPulse;

                        1.2.4expressPWMOutput124KHzPulse;

The scope of the duty cycle:0~100%Items

All settings parameters are settled and saved.

Parameter settings

This product regulates the frequency to occupy the duty ratio by rotating the potentiometer. It can determine the rapid adjustment according to the rotation speed.2Lock in seconds, long press5Second switch mode (ordinary mode/Fine mode),Simple operation, automatically save after setting the parameters, and do not lose power.

3. Module parameters:

1.Operating Voltage:3.3~30VItems

2.Frequency range: ordinary mode1Hz~150KHz; Fine mode1HZ~15KHZItems

3.Frequency accuracy: accuracy in each range is2%about;

4.Signal load capacity: output current can5~30maabout;

5.Output amplitude:PWMThe amplitude value is equal to the power supply voltage;

6.Environmental temperature:-20~+70℃.

7.Weight: 42g

4. Scope of application:

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

2.The square wave signal used to generate a controller driver;

3.Generate pulses, for supplyMCUuse;

4.Generate adjustable pulses and control related circuits (PWMApplication such as lighting speed and adjustment).

5. serial control(Single -chip machineTTLLevel communication)

Communication standard:9600 bps

Data position :8
Stop :1
Check Digit :none
Flow control :none

    1. SettingsPWMFrequency of 

"F101":Set the frequency to101 HZ     (001~999)

"F1.05":Set the frequency to1.05 KHZ      (1.00~9.99)

"F10.5":Set the frequency to10.5KHZ (10.0~99.9)

"F1.0.5":Set the frequency to105KHZ  (1.0.0~1.5.0)

Note:Under fine mode,The maximum frequency is15.0Khz

   2. SettingsPWMDuty cycle

General mode:

"Dxxx":set upPWMThe occupation ratio isXXXItems(001~100)

   For exampleD050,set upPWMThe occupation ratio is50%

Fine mode:

"Dxx.x":set upPWMThe duty cycle isXX.X(00.1~100)

            For exampleD20.8,set upPWMThe occupation ratio is 20.8%

     3. Read the setting parameter

send"read"String, read the setting parameters.

     4. Switch mode

MODE0 : General mode

MODE1 : Fine mode

Set the successful return:DOWNItems

Settings failure returns:FALLEssence