Product description:

1. Brand new and high quality.2. Suitable for serial communication.3. Wide frequency range, high accuracy.4. Two independent PWM generators can set the frequency and duty cycle.Module Parameters:1. Working voltage: 5--30V, support micro USB 5.0V power supply.2. Frequency range: 1Hz ~ 150KHz.3. The frequency accuracy: ¡À 2%.4. Output current: <30mA.5. Output amplitude: Default 5Vp-p (settable).6. Operating temperature range: -30 ~ + 70 ¡æ.7. Product size: 4.3x2.9x0.9cm - 1.69x1.14x0.35inParameter Settings:1. Module has three buttons: [Set], [Up], [Down].2. Press [Set] key to switch the display of 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 flashing.3. Press [Up], [Down] keys to modify the current parameter value (long press can quickly add or subtract fast).4. Two PWM each have three preset frequency, and in the frequency display interface, long press [SET] key to switch between three types of frequencies, three kinds of frequency duty cycle is the same. (XXX: range 1Hz ~ 999Hz; XX.X: range 0.1Khz ~ 99.9Khz; X.X.X .: range 1Khz ~ 150Khz,).Applicable Scopes:1. To generate a square wave signal for experimental development as a square wave signal generator.2. To generate a square wave signal for stepping motor driver.3. To generate adjustable pulse generation for chip use.4. To generate variable pulse signal for controlling related circuit (PWM dimming, speed).