Product Name:
–> PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Rectangular Wave Signal Generator
Product Highlights:
- This module comes equipped with an LCD display to monitor frequency and duty cycle, ensuring clear visibility. Plus, depending on your needs, you can set the PWM output to the desired frequency and duty cycle.
- It boasts of a broad frequency range with high precision.
- It supports serial communication at TTL level.
An Introduction to The Module:
The PWM output on this module is adjustable – you can set the frequency and the duty cycle as per your needs. The frequency can be broken down into four distinct ranges, each with automatic shifts:
- XXX (no decimal point): This is measured in the smallest unit of 1Hz, with a possible value range of 1Hz – 999Hz;
- X.XX (decimal point in the hundred) works in the smallest unit of 0.01Khz, offering a range from 1.00Khz – 9.99Khz;
- XX.X (decimal point in ten): This uses the smallest unit of 0.1Khz; the value can range from 10.0KHz – 99.9KHz
- X.X.X (decimal point in ten and hundred): It uses the smallest unit of 1Khz with a value range from 1KHz – 150KHz.
The duty cycle range is 0 – 100%. Plus, when you set parameters, they are automatically saved and remain stored even if the power is turned off.
Parameter Settings:
This module hosts four independent keys that you can use to set the frequency and the duty cycle in either touch mode (increase or decrease by one unit) or long press mode (rapid increase or decrease). The module automatically saves all set parameters, ensuring they’re not lost even after power is cut off.
Key Module Specifications:
- Operating voltage ranges from 3.3 – 30V.
- Frequency range spans from 1Hz – 150KHz.
- Frequency accuracy holds around 2% precision in every range.
- The output signal can carry a load of around 5 – 30ma.
- Output amplitude matches the supply voltage.
- Works in an ambient temperature range of -20 – +70 ℃.
Where You Can Use This Module:
- As a generator of a square wave signal for experimental and developmental use;
- To generate a square wave signal to control motor drivers;
- To produce adjustable pulse for MCU use;
- To produce adjustable pulse to influence related circuits (like in applications of PWM dimming speed, etc.)
- For serial control (TTL level communication)
Communication standards for serial control follow the 9600 bps Data bits:8
Stop bit:1
Check digit: none
Flow control: none
Working with the PWM frequency and duty cycle is easy. For instance:
- A “F101” command sets the frequency to 101 HZ (001 – 999).
- A “DXXX” command sets the PWM duty cycle to XXX; for example, D050 sets the PWM duty cycle to 50%.
In case of any settings changes, you can simply send a “read” command to review the parameters. Successful setup returns “DOWN”, while a setup failure returns “FALL”.
Your purchase includes: 1 X XY-WPWM Signal Generator.
Explore more about the product in these pictures:
