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Pwm Square   Generator PWM Pulse Adjustable Duty Cycle Module with LCD Display

<ul><li>LCD display frequency and duty cycle, very clear, PWM output can be set separately frequency and duty cycle</li><li>Wide frequency range and high accuracy</li><li>Serial communication is available,more convenient in use</li><li>The module has 4 independent buttons for setting the frequency and duty cycle. It supports short press increase or decrease unit and long press fast increase or decrease. It is very simple. The parameters are automatically saved after setting without lost</li></ul>

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Specification: Item Type: Generator Working Voltage:3.3~30V Frequency Band:1Hz~150KHz Frequency Accuracy:2% in each range Loading Capacity:5~30mA Output Amplitude: PWM Amplitude is Equal to Supply Voltage Environmental Temperature:-20~+70 degrees Celsius Weight: 14 g / 0.49 ozapprox. Module description 1. XXX no decimal point: the minimum unit is 1 Hz, and the value ranges from 1 Hz to 999 Hz. 2. The minimum unit of X.XX the decimal point is in the hundred digits is 0.01Khz, and the value range is 1.00Khz~9.99Khz; 3. XX.X decimal point is ten: the minimum unit is 0.1Khz; the value range is 10.0KHz~99.9KHz 4. X.X.X decimal point in ten and hundred: the minimum unit is 1Khz; the value range is 1KHz~150KHz Frequency display: 100 means PWM output 100Hz pulse; 1.01 indicates that the PWM outputs a pulse of 1.01K; 54.1 indicates that the PWM outputs a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is a pulse of 124KHz; The duty ratio ranges from 0 to . All setting parameters are saved after power down. Scope of application: 1. as a square generator to generate a square for experimental development; 2. to generate a square that controls the motor driver; 3. Generate adjustable pulses for use by the MCU; 4. Generate adjustable pulses and control related circuits applications such as PWM dimming speed regulation. Serial port control microcontroller TTL communication Communication standard: 9600 bps Data bit : 8 Stop bit :1 Check digit :none control : none 1, set the frequency of the PWM “F101”: Set the frequency to 101 HZ 001~999 “F1.05”: Set the frequency to 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 to 105KHZ 1.0.0~1.5.0 2, set the duty cycle of the PWM “DXXX”: Set the duty cycle of PWM to XXX; 001~100 For example, D050, set the PWM duty cycle to be 50%. 3, read the setting parameters Send a "read" string and read the set parameters. Set the success to return: DOWN; Setting failed to return: FALL. Package List: 1 x Generator

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