NE555 Pulse Frequency Duty Cycle Adj. Square Wave Signal Generator

Precision NE555 Timer Circuitry: Built on the reliable NE555 timer architecture, generating clean, continuous square wave pulses for digital logic, timing circuits, and pulse width experimentation.

Independent Frequency & Duty Cycle Adjustment: Dual onboard multi-turn trimmer potentiometers allow independent, fine-tuned adjustment of signal frequency and duty cycle (50% - 100%).

4-Band Selectable Frequency Range: Uses a 4-position jumper system to easily switch across frequency output bands:

LF (Low Frequency): 1Hz - 50Hz

IF (Medium Frequency): 50Hz - 1 kHz

HF (High Frequency): 1 kHz - 10 kHz

UHF (Ultra-High Frequency): 10kHz - 200 kHz

Visual LED Output Indicator: Onboard LED flashes at low output frequencies and remains solid at high frequencies, providing instant visual feedback on module activity.

Flexible Operating Voltage Range: Functions seamlessly with supply voltages between 5V DC and 15V DC, easily matching 5V microcontroller logic or 12V power systems.

Direct Signal Output Driver: Delivers up to 15mA - 35mA drive current to directly trigger optocouplers, small relays, LED indicators, or logic inputs.

Board & Component Construction: Double-sided FR4 PCB featuring a DIP-socketed NE555 timer IC, dual multi-turn blue potentiometers, selection jumper pins, status LED, and standard 3-pin headers (VCC, GND, OUT).

Technical Specifications:

Core Chip: NE555 Precision Timer IC.

Input Voltage: 5V - 15V DC.

Output Current: >15mA (at 5V supply), >35mA (at 12V supply).

Frequency Range: 1Hz - 200kHz (adjustable across 4 jumper ranges).

Duty Cycle Adjustment: 50% - 100%.

Board Dimensions: 31mm x 22mm (approximate).

Usage Advice: Output amplitude matches input supply voltage (approx. 5Vpp at 5V input; approx. 12Vpp at 12V input).

Handling & Maintenance: Handle by the edges to prevent static discharge to IC pins. Store in an anti-static bag when not in use.

Essential Everyday Pulse Generator for DIY Benches: Position as a low-cost, versatile pulse generator for robotics, stepper motor driver testing, LED dimming experiments, and MCU clock signal simulation.

Highlight Independent Duty Cycle & 4 Frequency Bands: Emphasize its 4 jumper-selectable ranges (1 Hz - 200 kHz) and dual multi-turn potentiometers for precise, independent pulse control.

Recommended Cross-Sell Add-ons: Pair with NE555 Frequency Adjustable Pulse Generator, HW-515 DC 2CH PWM Signal Generator Module, XY-LPWM Signal Generator PWM 1Hz-150Khz 3.3V-30V Pulse Frequency Duty Cycle LCD, and DSO138 2.4" TFT Digital Oscilloscope.

Top-Selling Pulse Module Star: Feature prominently in your Signal/Frequency Module collection page as an indispensable precision pulse source board.