Adjustable PWM Pulse Frequency Duty Cycle Square Wave Signal Generator Module

Description: 1. Item 1 Highlights: Two independent PWM generators can set the frequency, duty cycle; The wide frequency range, high accuracy; Can serial communication. First, the module description： Frequency is divided into three ranges: XXX (no decimal point): the smallest unit is 1Hz, the range 1Hz ~ 999Hz; XX.X (decimal point in ten): The minimum unit is 0.1Khz; the range of 0.1KHz ~ 99.9KHz X.X.X. (there are three decimal point): the smallest unit is 1Khz; the range 1KHz ~ 150KHz Frequency display example: "100" indicates that the PWM output pulse of 100Hz; "54.1" indicates that the PWM output pulse of 54.1KHz; "1.2.4." Indicates that the PWM pulse output 124KHz Duty Cycle in the range: 0 to 100; Three frequencies duty cycle is the same, all the parameters non-volatile. Second, the module parameters: Working voltage: 5--30V, support micro USB 5.0V power supply; Frequency range: 1Hz ~ 150KHz; The frequency accuracy: ± 2%; Output Current: <30mA; Output amplitude: Default 5Vp-p (settable); Operating temperature range: -30 ~ + 70 ℃. Third, the parameter settings： Module has three buttons [Set], [Up], [Down]; Press [Set] key to switch the display four parameters (FR1: PWM1 frequency; dU1: PWM1 duty cycle; FR2: frequency of PWM2; dU2: PWM2 duty cycle), before the handover parameters, there will be corresponding parameter name flash. Press [Up], [Down] keys to modify the current parameter value (long press can quickly add or subtract fast). Two PWM each have three preset frequency, the frequency display interface, long press [SET] key to switch between three types of frequencies, three kinds of frequency duty cycle is the same value. (XXX: range 1Hz ~ 999Hz; XX.X: range 0.1Khz ~ 99.9Khz; X.X.X .: range 1Khz ~ 150Khz,). Fourth, the scope: As square wave signal generator which generates a square wave signal; to provide a signal to the stepping motor driver; Adjustable pulse generation for chip use; produce variable pulse signal, the control-related circuit (PWM dimming, speed). Fifth, the serial control Baud rate: 9600 bps Data bits: 8 Stop bits: 1 Parity bit: none Flow control: none 1, set the PWM frequency "S1FXXXT": setting PWM1 frequency of XXX HZ (001 ~ 999) "S1FXX.XT": set the frequency of PWM1 XX.X KHZ (00.1 ~ 99.9) "S1F: X.X.X.T": setting PWM1 frequency of XXX KHZ (0.0.1 ~ 1.5.0..) 'S1': PWM1 'S2': PWM2 'F': Frequency 'D': Duty Cycle 'T' is the end flag Set the PWM duty cycle "S1DXXXT": setting PWM1 duty cycle XXX; (001 ~ 100) "S2DXXXT": set PWM2 duty cycle XXX; (001 ~ 100) Setting successful return: DOWN; Setting failback: FALL. NO Retail Box. Packed Safely in Bubble Bag. Package Included: 1 x 2 way Independent PWM Generator 2. Item 2 Module Highlights: 1.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 First, the module description PWM output, you can set the frequency, duty cycle; Frequency is divided into four ranges, automatic switching: XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 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; Duty cycle range: 0 ~ 100%; All set parameters, power-down automatically saved. Second, the 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 press (fast increase or decrease), set the parameters automatically save, power down Not lost. Third, the module parameters: 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 ℃. Fourth, the scope of application: 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). 5, serial control (single-chip TTL level communication) 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 successfully return: DOWN; Setup failed to return: FALL. 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Your Satisfaction is our Priority. Our goal is to make all our customers as happy as possible while shopping with us.On Oct-20-17 at 18:40:47 PDT, seller added the following information:

Price: 2.68 USD

Location: ShenZhen, China

End Time: 2024-03-21T01:35:29.000Z

Shipping Cost: 3 USD