Specification: Working Voltage: 3.3–30V (observe correct polarity to avoid damage) Frequency Range: 1 Hz–150 kHz, accuracy ±2%; typical motor speed control frequency: 20 kHz Duty Cycle Range: 0–100%, adjustable in 1% increments Pulse Count: 1–9999 or continuous (display shows “∞” for continuous mode) Delay Time: 0.000–9999 seconds, minimum adjustable step: 1 ms Positive/Negative Pulse Width: 0.000–9999 seconds, minimum adjustable step: 1 ms Output Current: Up to 8 A (MOSFET switching) Output Voltage: Matches input supply voltage (OUT+ internally connected to V+) Dimensions: 79 × 43 × 30 mm Weight: 42 g Features: 1. Direct drive capability for DC motors, solenoid valves, and other resistive/inductive loads 2. Two operating modes: – PWM Mode: Adjustable frequency and duty cycle (continuous on/off operation) – Pulse Mode: Adjustable positive pulse width, negative pulse width, start delay time, and pulse count 3. Integrated start/stop button for manual control 4. Wide-input voltage range (3.3–30V) with 5.08 mm screw terminal connections Package Includes: 1 × ZK-PP2K PWM & Pulse Generator (Frequency and Duty Cycle Adjustable Driver)