PWM Frequency Generator Module 2 Channel 1Hz to 150KHz

The 2-Channel PWM Pulse Square Wave Generator Module is a versatile signal generator featuring dual independent channels with precise frequency and duty cycle control. Equipped with an intuitive LED display and push-button interface, this module allows easy adjustment of both channels without requiring external programming. It also supports RS232 serial communication for automated control applications. Perfect for stepper motor control, LED dimming, microcontroller testing, and signal generation experiments in electronics development and prototyping.

Specifications :

• Number of Channels: 2 independent PWM outputs
• Operating Voltage: 5V – 30V DC
• Power Input Options: MicroUSB 5V or external DC supply
• Frequency Range: 1Hz – 150KHz
• Frequency Precision: ±2%
• Duty Cycle Range: 1% – 100% (adjustable in 1% increments)
• Output Voltage: 5V peak-to-peak (default), adjustable with external power
• Output Current: Up to 30mA per channel
• Display Type: 3-digit LED display
• Control Buttons: SET, UP, DOWN (3 buttons)
• Serial Interface: RS-232 UART
• Serial Communication: 9600 bps, 8 data bits, 1 stop bit, no parity
• Operating Temperature: -30°C to +70°C
• Frequency Display Modes: XXX (1-999Hz), XX.X (0.1-99.9KHz), X.X.X. (1-150KHz)
• Parameter Settings: FR1 (PWM1 frequency), dU1 (PWM1 duty), FR2 (PWM2 frequency), dU2 (PWM2 duty)
• Serial Commands: Command-based control for automation
• Board Dimensions: Approximately 60mm x 40mm
• Connector: MicroUSB port for power