Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150KHz Adjustable PWM Pulse Frequency Square Wave Signal Generator Module with LCD Display and Rotary Switch

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Frequency Range: - Normal Mode: 1Hz - 150KHz, duty cycle 000-100, duty cycle step by 1 percent. - Fine Mode: 1Hz -15KHz, duty cycle 00.0-100, duty cycle step by 0.1 percent. Frequency Accuracy: The accuracy in each range is about 2 percent. Signal Load Capacity: The output current can be around 5 - 30mA. Output Amplitude: PWM amplitude is equal to the supply voltage. Environmental Temperature: -20 - +70 Degrees Celsius Parameter Settings: - Adjust the frequency and duty cycle by rotating the potentiometer. Default adjustment of duty cycle, short press to adjust frequency, long press for 2 seconds to lock, long press for 5 seconds to switch modes (normal mode/fine mode). After setting the parameters, they will be automatically saved and will not be lost when powered off. The frequency is divided into 4 ranges and automatically switches: - XXX (without decimal point): The minimum unit is 1Hz, and the value range is 1Hz - 999Hz - X.XX (decimal point in hundreds): The minimum unit is 0.01KHz, and the value range is 1.00KHz to 9.99KHz - XX.X (decimal point in ten places): The minimum unit is 0.1 Khz; and the value range is 10.0KHz - 99.9KHz - X.X.X (decimal places in tens and hundreds): The minimum unit is 1Khz; and the value range is 1KHz 150KHz Serial Port Control (microcontroller TTL level communication) - Communication Standard: 9600bps - Data Bit: 8 - Stop Bit: 1 - Check Digit: None - Flow Control: None - Read Setting Parameters: Send a "Read" String - Set Successfully and Return: DOWN - Setting Failed and Returned: FALL Set the frequency of 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- 15.0) Set the duty cycle of PWM - Normal Mode DXXX: Set the PWM duty cycle to XXX; (001-100), for example D050, set the PWM duty cycle to 50 percent. - Fine Mode DXX.X: Set the PWM duty cycle to XX.X; (00.1-100), for example D20.8, set the PWM duty cycle to 20.8 percent. Place of Application: - Used as a square wave signal generator to generate square wave signals for experimental development. - Used to generate square wave signals for controlling the motor driver. - Generate adjustable pulses for MCU use. - Generate adjustable pulses and control related circuits (such as PWM dimming speed control applications).