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Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module With LCD Display and Case 1Hz-150Khz 3.3V-30V

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                  Features:
                   
                  – Support Serial operation
                  – Wide frequency range,high precision
                  – LCD can display frequency and duty datio,Easy to oprate
                  – 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
                   
                  Specifications:
                   
                  1.Operating voltage3.3~30V;
                  2. Frequency range1Hz~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°
                  7. Size:5.5×3.8cm/2.17×1.50inch
                   
                  Overview:
                   
                  1. Module has 4 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.
                  2. 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.
                   
                  Parameter Settings:
                   
                  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 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.
                   
                  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).
                   
                  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
                   
                  Package Includes:
                   

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