Working voltage:3<br>3~30V;Frequency range:1Hz~150KHz;Frequency accuracy:accuracy is about 2% in each range<br>Signal load capability:output current can be around 5~30ma;Output amplitude:PWM amplitude is equal to supply voltage<br>Ambient temperature:-20~+70 C<br>Module descriptionPWM output can set frequency and duty cycle respectively<br>Frequency is divided into four areas: automatic switching:1<br>XXX (without decimal point): the smallest unit is 1Hz, and the value range is 1Hz~999Hz;The minimum unit of 2<br>X<br>XX (decimal point in 100 bits) is 0<br>01Khz, and the value range is 1<br>00Khz~9<br>99Khz;3<br>XX<br>X (decimal point in ten places): the smallest unit is 0<br>1Khz; and the range is 10<br>0KHz~99<br>9KHz<br>4<br>X<br>X<br>X (decimal point in ten bits and 100 bits): the smallest unit is 1Khz; and the range is 1KHz~150KHz<br>E<br>g<br> frequency display: 100 indicates PWM output 100Hz pulse;1<br>01 represents the pulse of PWM output 1<br>01K<br>54<br>1 represents the pulse of PWM output 54<br>1KHz<br>1<br>2<br>4 indicates the pulse of PWM output 124KHz<br>Duty cycle:0~100%;All settings are saved by power down<br>Parameter settingModule has four independent keys, used to set the frequency and duty cycle, support short press (increase or decrease a unit) and long press (quickly increase or decrease), very simple, set the parameters automatically save, power loss is not lost<br>Scope of application:1<br>is used as a square wave signal generator to generate square wave signals for experimental development<br>2<br>is used to generate square wave signals that control motor drives<br>3<br>generate adjustable pulse for MCU use;4<br>generate adjustable pulses to control related circuits (PWM dimming and speed regulation applications)<br>Size:7<br>8x4<br>2x2<br>6cm/3<br>07x1<br>65x1<br>02inch Note:Please allow 1-3mm error due to manual measurement<br>pls make sure you do not mind before you bid<br>Due to the difference between different monitors,the picture may not reflect the actual color of the item<br>Thank you Package Includes:1x PWM Pulse Frequency Duty Cycle Adjustable Module