Description <br> Description: <br> LCD display frequency and duty cycle, very clear, PWM output, can be set to the frequency and duty cycle. <br> Wide frequency range, high precision. <br> Serial communication, TTL level. <br> Frequency is divided into four ranges, automatic switching. <br> All set parameters, power-down automatically saved. <br> Application Range: <br> 1. Used as a square wave signal generator, generate square wave signal for experimental development and use; <br> 2. Used to generate a square wave signal that controls the motor driver; <br> 3. generate adjustable pulse for MCU use; <br> 4. generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications). <br> Specification: <br> Frequency is divided into four ranges, automatic switching: <br> 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; <br> 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; <br> 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz <br> 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz <br> Duty Cycle Range: 0 ~ 100% <br> Module Parameters: <br> Working Voltage: 3.3~30V; <br> Frequency Range: 1Hz~150KHz; <br> Frequency Accuracy: about 2%; <br> Signal Load Capacity: Output Current can be about 5~30mA; <br> Output Amplitude: PWM amplitude equal to the supply voltage; <br> Ambient Temperature: -20~70℃. <br> Size: 79x43x26mm/3.11x1.69x1.02 inch <br> Serial Control (single-chip TTL level communication): <br> Communication Standard: 9600 bps Data bits: 8 <br> Stop Bit: 1 <br> Check Digit: none <br> Flow Control: none <br> Set successfully return: DOWN; <br> Setup failed to return: FALL. <br> Package Includes: <br> 1x PWM Signal Generator <br>