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

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 5~30ma5. Output amplitude: PWM amplitude and supply voltage equal 6. Ambient temperature:-20~+70°7. Size:5.5x3.8cm/2.17x1.50inch 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 independentlyFrequency 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 54.1KHz1.2.4 represent the pulse of 124HzThe 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 use2.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:8Stop bits:1Check digit:noneFlow control:none1.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 parametersSend a "read" string to read the parameters of the setting.Message format:F156,D1:052,D2:059,D3:058,Set successful return:DOWNSet failed to return:FALL Package Includes: 1x Signal Generator With LCD Display and Case