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

1 Way Signal Generator:

Specification: Working voltage: 3.3 ~ 30V Frequency range: 1Hz ~ 150KHz Frequency accuracy: the accuracy in each range is about 2% Signal load capacity: the output current can be about 5 ~ 30ma Output amplitude: PWM amplitude equal to the supply voltage Ambient temperature: -20 ~ 70 degree Features: LCD display frequency and duty cycle, very clear, PWM output can be set to the frequency and duty cycle. Wide frequency range, high precision. Serial communication, TTL level. Used as a square wave signal generator, generate square wave signal for experimental development and use. Used to generate a square wave signal that controls the motor driver. Generate adjustable pulse for MCU use. Generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications). Serial control (single-ch TTL level communication). Fine workmansh and good performance. Stable and reliable. Easy to use. Long service life. Frequency is divided into four ranges, automatic switching: 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 5. e.g. frequency display: 100 indicates PWM output 100Hz pulse; 1.01 indicates PWM output 1.01K pulse; 54.1 indicates that the PWM output has a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is 124 kHz pulse; 6. Duty cycle range: 0 ~ 100% Parameter Settings: The module has four independent keys, used to set the frequency and duty cycle. Support touch (increase or decrease a unit) and long pre (fast increase or decrease). The parameters automatically save, power down Not lost. Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none 1>. set the frequency of the PWM "F101": Set the frequency to 101 HZ (001 to 999) "F1.05": set the frequency of 1.05 KHZ (1.00 ~ 9.99) "F10.5": Set the frequency to 10.5KHZ (10.0 ~ 99.9) "F1.0.5": set the frequency of 105KHZ (1.0.0 ~ 1.5.0) 2>. set the PWM duty cycle "DXXX": set the PWM duty cycle to XXX; (001 ~ 100) Such as D050, set the PWM duty cycle is 50% 3>. read the set parameters Send a "read" string to read the set parameters. Set succefully return: DOWN. Setup failed to return: FALL. Package Included: 1 x Signal Generator Module

3 Way Signal Generator:

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° 1).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 dutyfactor: 0~100%,100% is represented by A0%. All parameters setted up can be automatically saved in case of power cut. 2).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. 3).Scope of 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). 4).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 Size:5.5x3.8cm/2.17x1.50inch Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x LCD Display PWM Signal Generator

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