Specification: _x005f_x000D_ Working voltage: 3.3-30V; _x005f_x000D_ Frequency range: 1Hz-150KHz; _x005f_x000D_ Frequency accuracy: The accuracy of each range is about 2%; _x005f_x000D_ Signal carrying capacity: The output current can be around 5-30ma; _x005f_x000D_ Output amplitude: PWM amplitude is equal to the power supply voltage; _x005f_x000D_ Environmental temperature: -20-+70 ℃. _x005f_x000D_ Size: 52 * 32mm/2.04 * 1.25inch _x005f_x000D_ Weight: 35g _x005f_x000D_ _x005f_x000D_ LCD display frequency and duty cycle, clear at a glance, PWM output can be set separately for frequency and duty cycle; _x005f_x000D_ Wide frequency range and high accuracy; _x005f_x000D_ Can use serial communication _x005f_x000D_ _x005f_x000D_ PWM output, frequency and duty cycle can be set; _x005f_x000D_ The frequency is divided into four ranges and automatically switches: _x005f_x000D_ 1. XXX (without Decimal separator): the minimum unit is 1Hz, and the value range is 1Hz-999Hz; _x005f_x000D_ 2. X.XX (hundred Decimal separator) The minimum unit is 0.01Khz, and the range is 1.00Khz-9.99Khz; _x005f_x000D_ 3. XX. X (ten Decimal separator): the minimum unit is 0.1Khz; Value range: 10.0KHz-99.9KHz _x005f_x000D_ 4. XXX (Decimal separator of tens and hundreds): the minimum unit is 1 Khz; Value range: 1KHz-150KHz _x005f_x000D_ For example, frequency display: 100 represents PWM output of 100Hz pulse; _x005f_x000D_ 1.01 represents PWM output of 1.01K pulses; _x005f_x000D_ 54.1 indicates that the PWM output has a pulse of 54.1kHz; _x005f_x000D_ 1.2.4 indicates that the PWM output is a 124kHz pulse; _x005f_x000D_ Duty cycle range: 0-100%; _x005f_x000D_ All set parameters, save after power down. _x005f_x000D_ _x005f_x000D_ Applicable scope _x005f_x000D_ 1. Used as a square wave signal generator to generate square wave signals for experimental development; _x005f_x000D_ 2. Used to generate square wave signals for controlling motor drivers; _x005f_x000D_ 3. Generate adjustable pulses for MCU use; _x005f_x000D_ 4. Generate adjustable pulses and control related circuits (applications such as PWM dimming speed) _x005f_x000D_ _x005f_x000D_ Parameter settings _x005f_x000D_ The module has four independent buttons for setting frequency and duty cycle, and supports short pressing (increasing or decreasing by one unit) and long pressing (quickly increasing or decreasing). It is very simple, and the setting parameters are automatically saved, resulting in power loss. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Signal Generator PWM Board Module 1. Clear LCD Display: This module has an easy-to-read LCD screen that displays the frequency and duty cycle of the PWM output signal, making it easy to monitor and adjust your settings. 2. High Frequency Range and Accuracy: With a wide frequency range and high accuracy, this module can generate precise signals for various applications. 3. Serial Communication: The module supports serial communication, allowing you to connect it to other devices or control it remotely. 4. Wide Range of Applications: This module is ideal for generating square wave signals for experimentation, controlling motor drivers, producing adjustable pulses for use with microcontrollers, and controlling various circuits using PWM.