Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module 7 segment BCD Display 1Hz-150Khz 3.3V-30V

Signal Generator PWM Module with adjustable frequency (1Hz–150kHz) and duty cycle, featuring a clear 7-segment BCD display. Supports wide input voltage (3.3V–30V) for flexible use in various circuits. Ideal for motor control, dimming, testing, and square wave signal generation.

Features

• Brand new, high-quality module.
• Ideal for serial communication and PWM signal generation.
• Wide frequency range with high accuracy.
• Two independent PWM generators — each with adjustable frequency and duty cycle.

Module Parameters

• Working voltage: 5–30 V (supports micro USB 5.0 V power).
• Frequency range: 1 Hz – 150 kHz.
• Frequency accuracy: ±2%.
• Output current: < 30 mA.
• Output amplitude: Default 5 V_p-p (configurable).
• Operating temperature: −30 °C to +70 °C.
• Product size: 4.3 × 2.9 × 0.9 cm (1.69 × 1.14 × 0.35 in).

Parameter Settings

• The module has three buttons: Set, Up, and Down.
• Press Set to cycle display between four parameters: FR1 (PWM1 frequency), dU1 (PWM1 duty), FR2 (PWM2 frequency), dU2 (PWM2 duty). The active parameter name flashes before switching.
• Use Up / Down to change values; long press for fast increment/decrement.
• Each PWM channel has three preset frequency formats. In the frequency display, long-press Set to toggle formats:
  • XXX: 1 Hz – 999 Hz
  • XX.X: 0.1 kHz – 99.9 kHz
  • X.X.X: 1 kHz – 150 kHz

Applicable Uses

• Square wave signal generator for experiments and development.
• Pulse generation for stepper motor drivers.
• Adjustable pulse source for IC testing and timing circuits.
• PWM control for dimming, motor speed control, and other variable-pulse applications.

Package Includes

• 1 × 2-way Independent PWM Generator module

Quick Specs

Operating Voltage: 5–30 V (Micro USB 5.0 V supported)

Frequency Range: 1 Hz – 150 kHz

Frequency Accuracy: ±2%

Signal Load Capacity: 8–30 mA

Output: 5 V_p-p (default)

Ambient Temperature: −30 °C – +70 °C

Dimensions: 4.3 × 2.9 × 0.9 cm