NE555 Timer Module — Adjustable Frequency & Duty Cycle, PWM Output

NE555 Timer Module — Adjustable Frequency & Duty Cycle, PWM Output

The NE555 timer module generates a square wave PWM output with independently adjustable frequency and duty cycle via two on-board potentiometers. No microcontroller needed — a standalone pulse generator for motor speed control, LED dimming, and timing circuits. Includes a power LED and output LED for visual feedback.

Key Features

• ✅ Adjustable frequency — potentiometer control from Hz to kHz range
• ✅ Adjustable duty cycle — independent potentiometer for 0–100% duty cycle
• ✅ PWM square wave output — direct connection to motor drivers and LED drivers
• ✅ Power & output LEDs — visual confirmation of power and pulse output
• ✅ 5–15V supply — wide voltage range for various applications
• ✅ RoHS compliant

Key Specifications

• IC: NE555 | Output: PWM square wave
• Supply: 5–15V | Frequency: adjustable (Hz to kHz)
• Duty cycle: adjustable (0–100%)

Typical Applications

• Standalone PWM motor speed controller
• LED dimmer without microcontroller
• Pulse generator for timing and testing
• Stepper motor pulse source

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