XY-LPWM PWM Signal Generator — 1Hz–150kHz, 3.3V–30V, Duty Cycle & LCD Display

XY-LPWM is an adjustable PWM signal generator with LCD display that generates square waves from 1Hz to 150kHz with 0–100% duty cycle control, powered by 3.3V–30V. It's widely used for motor speed control, LED dimming, MCU pulse generation, and experimental signal testing in embedded systems.

Key Features (bullets for product page)

• Frequency range: 1Hz – 150kHz with automatic range switching

• Duty cycle: 0–100% adjustable via buttons or serial TTL commands

• Working voltage: 3.3V – 30V DC; output amplitude equals supply voltage

• Frequency accuracy: ~2% in each range

• Output current capability: 5–30mA

• Display: Blue backlit LCD showing frequency and duty cycle

• Control: Manual buttons (FREQ/DUTY) + Serial TTL (UART) interface, 3.3V logic compatible

• Material: Metal casing; compact size: 52 × 32 × 8mm

• Operating temperature: -20°C to +70°C

Technical Specifications (compact table-friendly list)

• Operating Voltage: 3.3V – 30V DC

• Frequency Range: 1Hz – 150kHz (4 sub-ranges)

• Frequency Accuracy: ~2% per range

• Duty Cycle Range: 0% – 100%

• Output Current: 5–30mA

• Output Amplitude: = VCC (supply voltage)

• Interface: Serial TTL (TXD, RXD, GND), 3.3V logic

• Display: Blue LCD (frequency + duty cycle)

• Dimensions: 52 × 32 × 8mm (metal)

• Temperature: -20°C to +70°C