2 Channel Signal Generator Module For Square And Rectangular Wave

2 Channel Signal Generator Module For Square And Rectangular Wave is a versatile and compact PWM (Pulse Width Modulation) generator designed to produce stable square and rectangular signals across two independent channels. This module allows users to adjust both the frequency and the duty cycle for each channel separately, providing high precision for various electronic testing and control tasks. Consequently, it serves as an excellent tool for engineers and hobbyists who require a reliable digital clock source or motor control signal. Furthermore, the onboard LCD display clearly shows the current frequency and duty cycle parameters, ensuring ease of use during real-time adjustments. Therefore, you can effectively utilize this module to simulate sensor outputs or drive power components in embedded system prototypes.

Key Features:

• Dual Independent Channels: The module outputs two PWM signals simultaneously, allowing you to set distinct frequencies and duty cycles for each channel.
• High-Resolution LCD: A clear, backlit display provides visual confirmation of all parameters, which simplifies the calibration process.
• Wide Frequency Range: This generator covers a broad spectrum from 1 Hz up to 150 kHz, supporting both low-speed and high-speed switching applications.
• Serial Communication (UART): Users can programmatically control the module via a TTL serial interface, making it suitable for automated testing environments.
• Non-Volatile Memory: The device automatically saves all set parameters upon power-down; consequently, it restores your previous settings when restarted.

Technical Specifications:

• Operating Voltage: 3.3 V to 30 V DC
• Frequency Range: 1 Hz ≈ 150 kHz
• Frequency Accuracy: ≈ 2% in each range
• Signal Load Capacity: Output current ≈ 5 mA to 30 mA
• Output Amplitude: PWM amplitude is equal to the input supply voltage.
• Duty Cycle Range: 0% to 100% (adjustable in 1% increments)
• Operating Temperature: −20°C to +70°C

Mechanical Specifications:

• Display Type: Blue Backlit LCD
• Mounting: Four M3 mounting holes for secure enclosure installation.
• Push Buttons: Tactile switches for Frequency+, Frequency-, Duty+, and Duty- controls.
• Interface: Screw terminals for power input and PWM output signals.

Dimensions:

• Length: 52 mm
• Width: 32 mm
• Height: 10 mm
• Weight: ≈ 15 g

Pinout and Wiring:

• VIN+: Connect to the positive DC power supply (3.3V – 30V).
• VIN-: Connect to the common ground (GND).
• PWM1: Signal output for the first channel (Square/Rectangular wave).
• PWM2: Signal output for the second channel (Square/Rectangular wave).
• UART (TX/RX): Connect these pins to a USB-to-TTL converter if remote serial control is required.

Datasheet Reference:

• Download 2-Channel PWM Signal Generator Module Datasheet

Commonly Used in:

• Motor Speed Controllers: Providing the PWM signal required for DC motor drivers and H-bridges.
• LED Dimming Systems: Controlling the brightness of high-power LED arrays through rapid switching.
• Laboratory Equipment: Serving as a low-cost frequency reference for circuit characterization.

Applications:

• Square Wave Generation: Creating clock signals for digital ICs and microcontrollers during the prototyping phase.
• Inverter Driving: Acting as the primary signal source for experimental power inverter circuits.
• Valve Control: Driving proportional solenoid valves in fluid control systems.
• Stepper Motor Pulse Source: Generating the step pulses needed to drive stepper motor controllers.

Equivalent Models:

• XY-PWM1: A single-channel variant that offers similar frequency ranges and LCD feedback.
• ZK-PP2K: A high-power PWM controller however, it includes integrated MOSFETs for direct load driving.
• NE555 Timer Modules: Analog alternatives for basic square wave generation; nevertheless, they lack the precision and digital display of the 2-channel module.

Package Includes:

• 1 x 2 Channel Signal Generator Module For Square And Rectangular Wave