3 Channel LCD Backlight Digital Signal Square Wave PWM Pulse Frequency Duty Ratio Adjustable Module 1Hz-150Khz

3 Channel LCD Backlight Digital Signal Square Wave PWM Pulse Frequency Duty Ratio Adjustable Module 1Hz-150Khz

Module Features:

1.Output of three-channel PWM at the same time, Adjustable frequency, 3-channel frequency output consistent, duty ratio can be independently adjusted, suitable for most occasions

2.Lcd can display frequency and duty datio,Easy to oprate;

3.Wide frequency range, high precision;

4.Support Serial operation

Module descrtion:

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 Sting Unit, Range: 1Hz~999Hz;

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

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

4.X.X.X(The decimal is in the ones place): 1KHZ Sting 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 duty factor: 0~100%,100% is represented by A0%.

All parameters setted up can be automaticallysaved in case ofpowercut.

Parameter settings:

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

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

Module Parameters：

1.Operating voltage：3.3~30V；

2. Frequency range：1Hz~150KHz；

3. Frequency accuracy: In each range of accuracy is about 2%

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

5. Output amplitude: PWM amplitude and supply voltage equal

6. Ambient temperature：-20~+70℃。

of application：

1. Used as square wave signal 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).

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.

Meage format：F156,D1:052,D2:059,D3:058，

Set succeful return：DOWN

Set failed to return：FALL

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.