Product Details

Modules window:

1. 3Road,PWMAdjustable output, frequency,3Channel frequency output is consistent, duty ratio can be adjusted independently, suitable for most occasions;

2. LCDLCD frequency and duty ratio, it is very clear, the adjustment is very convenient

3. Wide frequency range and high precision;

4. Can a serial port communication

 

A, module

 

3Road,PWMOutput, wide frequency range and duty ratio can be independent real-time adjustment;

Frequency is divided into four range, automatic switch:

1.  XXX (There is no point): is the smallest unit1 hzThe value range1 hz ~ 999 hz;

2. 7.0.x.x X(decimal points in a one hundred - bit) is the smallest unit0.01 KhzThe value range1.00 Khz to 9.99 Khz;

3.  XX. X (Decimal point in ten): is the smallest unit0.1 Khz;The valuesThe scope of10.0 KHz to 99.9 KHz

4.  X.X.X (The decimal point in 10 and one hundred): is the smallest unit1 KHZ;The values The scope of1 KHZ to 150 KHZ

 

e.g. Frequency display:100 saidPWMThe output100HzThe pulse;

1.01saidPWMThe output1.01 K.The pulse;

54.1 saidPWMThe output54.1 KHzThe pulse;

1.saidPWMThe output124 KHZThe pulse;

Duty ratio scope:0 ~ 100%, including100%Is to useA0 %To say.

All set parameters, save when power supply drop.

 

Second, the parameter Settings

 

    Module has8A separate button to set the frequency and duty ratio, support the short according to (a) increase or decrease and long press (rapid increase or decrease), is very simple, set the parameters automatically saved, no lose when power supply drop.

 

3Road duty cycle button can be pressed at the same time, the real time adjustment, liquid crystal display is finally press the button duty ratio, strong real-time performance, can be used to make a simple duty ratio scanning a few road.

 

Three, module parameters:

 

1.Working voltage:3.3 ~ 30 v;

2.Frequency range:1 hz ~ 150 KHZ;

3.The precision of frequency accuracy: on each range is2%Or so;

4.Load capacity: signal output current can be in5 ~ 30 maOr so;

5.Output range:PWMAmplitude and power supply voltage is equal;

6.Ambient temperature:- 20 ~ + 70℃.

 

Four, scope of application:

 

1.Used as a square wave signal generator, square wave signal for the use of the experimental development;

2.Used to generate square wave signal control motor drive;

3.The adjustable pulse, forMCUUse;

4.Adjustable pulse, control the related circuit (PWMThat move light speed etc.).

 

Five, the serial port control(single chip microcomputerTTLLevel communication)

 

Communication standard: 9600 BPSData bits 8:

Stop bit : 1.

Check digit : none

Flow control : none

 

1.  Set up thePWMThe frequency of

 

"F101" :Set the frequency for101 HZ (001 ~ 999)

"F1.05" :Set the frequency for1.05 KHZ (1.00 ~ 9.99)

"F10.5" :Set the frequency for10.5 KHZ (10.0 ~ 99.9)

"F1.0.5" :Set the frequency for105 KHZ (1.0.0 ~ 1.5.0)

 

2.  Set up thePWMThe duty ratio

 

"Dx: yyy" :Set up thePWMThe duty ratiox:(1 ~ 3)PWMThe serial number,Yyy:(000 ~ 100Duty ratio%;

 

For example,D1:050, set up the first1Road,PWMDuty ratio50%

 

3.  Read the set parameters

 

To send"read"String, read set of parameters.

Read the data format is as follows:F156.D1:052.D2:059.D3:058.

Set up successfully returns:DOWN;

Setup failed to return:FALL.