Product Description
The XY-LPWM Signal Generator is a versatile and high-precision PWM (Pulse Width Modulation) controller designed for laboratory testing, motor speed control, and electronic prototyping. This module provides a stable square wave signal with independently adjustable frequency and duty cycle, allowing engineers to simulate various pulse-driven environments. The integrated blue backlit LCD clearly displays both frequency and duty cycle simultaneously, eliminating the guesswork associated with traditional analog potentiometers.
Featuring a wide operating voltage range from 3.3V to 30V, the XY-LPWM is compatible with almost all standard logic levels, including 5V Arduino and 3.3V ESP32 systems. The frequency range is impressively broad, spanning from a low 1Hz for slow pulsing applications up to 150kHz for high-speed switching power supplies and Class-D amplifier testing. The user interface is intuitive, utilizing four tactile buttons (Set, Up, Down) to cycle through and lock in your desired parameters quickly.
One of the advanced features of this module is its Serial TTL (UART) communication port. This allows the XY-LPWM to be controlled remotely via a computer or another microcontroller. By sending simple text commands, you can programmatically change the frequency or duty cycle, making it an ideal component for automated test jigs and complex industrial control systems. The module also features a power-down memory function, ensuring your last-set parameters are saved even after the power is disconnected.
The build quality is robust, featuring a high-contrast LCD and a clean PCB layout with clearly labeled pins for VIN, GND, and PWM Output. The PWM output amplitude is equal to the supply voltage (VCC), which simplifies the integration into circuits where the signal needs to drive a MOSFET gate or an optocoupler directly. Its high frequency accuracy (approx. 2%) makes it reliable for timing-sensitive applications like clock signal generation.
Whether you are dimming high-power LEDs, controlling the speed of a DC motor via an H-bridge, or troubleshooting an oscilloscope, the XY-LPWM offers professional-grade signal generation in a compact, cost-effective package. At Robogears, we recommend this module for any workbench as a "Swiss Army Knife" for pulse-based electronics, providing a reliable reference signal whenever and wherever you need it.
Key Features
Dual adjustment of Frequency and Duty Cycle via tactile buttons.
High-definition LCD display with blue backlight for easy reading.
Wide frequency range from 1Hz up to 150kHz.
Supports Serial UART communication for remote digital control.
Wide input voltage (3.3V-30V) compatible with industrial and hobbyist logic.
Automatic parameter saving on power-off for seamless workflow.
