Features: 1. Dual mode:PWM mode and PULSE mode; 2. LCD high definition display; 3. Support frequency adjustment; 4. Support duty cycle adjustment; 5. High precision detection; 6. Support power-down memory function; 7. 1-Channel signal output; 8. Support reverse protection; 9. High current output; 10. Direct drive LED/Motor/solenoid valve Parameters: 1.Product name: -PP2 PWM Signal Generator;2.Model: -PP2;3.Work voltage:DC 3.3V-30V;4.Frequency range:1Hz~150KHz; 5.Motor speed control:20KHz(Usually);6.Frequency accuracy:2%;7.Duty cycle range:0.00%-100%; 8.Output Current:Less 8A(MOS Switch);9.Number of pulses:1~9999 or Infinite; 10.Delay time:0.000s~9999s;11.Pulse width:0.000s~9999s;12.Time accuracy:1ms;13.Output amplitude:Same to input voltage;14.Work Temperature:-40~85;15.Work Humidity:0%~95%RH Use steps: 1.Connect to power supply. 2.Select work mode as following manual. 3.Short or long press button 'FREQ+' or 'FREQ-' to set parameter. 4.Short or long press button 'DUTY+' or 'DUTY-' to set parameter. 5.Connect to load. Application: 1.Square wave signal generator, generating square wave signal for experimental development; 2.Used to generate a square wave signal that controls the motor driver; 3.Generate adjustable pulses for use by the MCU; 4.Dimmer; 5.Speed governor Note: 1.It's 1-channel signal output signals. 2.Its maximum output current is 8A.Therefore it can directly drive high-power devices such motor. 3.Please read use manual and before use. Practical application: 1.PWM output 20KHz,60% : Select PWM mode.Set frequency to 20.00 and duty cycle to 060%. 2.Output turn ON 0.6s,OFF 0.2s,infinite loop : Select PULSE mode.Set positive pulse width to 0.600 and negative pulse width to 0.200.Delay time to 0.000.Number of pulses to "----". 3.Delay 5s after power ON or press 'STOP' button.Then output turn ON 0.6s,OFF 0.2s,infinite loop : Select PULSE mode.Set positive pulse width to 0.600 and negative pulse width to 0.200.Delay time to 5.000.Number of pulses to "----". 4.Delay 5s after power ON or press 'STOP' button.Then output 10ms high level signal,10ms low level signal,cycle 100 times : Select PULSE mode.Set positive pulse width to 0.010 and negative pulse width to 0.010.Delay time to 5.000.Number of pulses to 0100. 5.Delay 5s after power ON.Then keep output : Select PULSE mode.Set positive pulse width more than 0(any value) and negative pulse width to 0.000.Delay time to 10.00.Number of pulses to "----". colour: blue Material: ABS Size: 60x32mm Package Contents: 1 x Pulse Signal Generator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.