Adjustable Duty Square Wave Generator

Adjustable Duty Square Wave Generator
This module uses NE555 integrated circuit to generate square wave signal and produce an adjustable pulse for MCU to use.

SKU: OTH41227766666,WUM40568722921

Price: 0.99 $

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This square wave generator uses two potentiometers which can vary the frequency and duty cycle. This can drive a stepper motor square wave signal and can be used to control motors (PWM generator), adjust brightness in bulbs and LEDs or timers. It also features an adjustable pulse control circuit,


  • Dimensions: 31 mm x 22 mm
  • Main Chip: NE555
  • Input Voltage: 5 VDC to 15 VDC
  • Signal Frequency: 1 Hz to 50 Hz, 50 Hz to 1 kHz, 1kHz to 10kHz, 10 kHz to 200 kHZ (depends on connection date jumper)
  • Current:  ≥100mA
  • Output Amplitude: 4.2 V V-PP to 11.4 V V-PP (depends on input voltage)
  • Output Current: 15 mA, Vin = 5 V; 35 mA, Vin = 15 V
  • Maximum Output Current:  ≥15MA