3.3V-30V Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module, 501 Original

Feature:LCD display frequency and duty cycle, very clear, PWM output can be set to frequency and duty cycle;Wide frequency range and high precision.Serial communication, TTL level.Module Description:PWM output, you can set the frequency, duty cycle;Frequency is divided into four ranges, automatic switching:1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz;2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz;3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHzFrequency display: 100 indicates PWM output 100Hz pulse;1.01 indicates PWM output 1.01K pulse;54.1 indicates that the PWM output has a pulse of 54.1 kHz;1.2.4 indicates that the PWM output is 124 kHz pulse;Duty cycle range: 0 ~ 100%;All set parameters, power-down automatically saved. Parameter Setting:The module has four independent keys, which are used to set frequency and duty cycle. It supports touch (increase or decrease units) and long press (increase or decrease quickly). It can save parameter settings automatically without power loss.Specification:Working voltage: 3.3 ~ 30V;Frequency range: 1Hz ~ 150KHz;Frequency accuracy: the accuracy in each range is about 2%;Signal load capacity: the output current can be about 5 ~ 30mA;Output amplitude: PWM amplitude equal to the supply voltage;Ambient temperature: -20 ~ +70 ℃.Size: 50mm*32mm*10mm/1.96*1.25*0.39''Weight: 15gNote:Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.1 X PWM Pulse Frequency Duty Cycle Board