NE555 Adjustable Frequency Pulse Generator ModuleAn NE555 Adjustable Frequency Pulse Generator Module is a compact, cost-effective electronic circuit board built around the classic NE555 timer IC. It operates as an astable multivibrator to generate continuous square or rectangular wave pulse signals, making it an ideal tool for driving stepper motors, MCU clocking, PWM dimming, and DIY electronics testing.Core Technical Specifications

• Operating Voltage : 5V to 15V DC.
• Input Current: 100 mA.
• Output Signal: Square wave / Rectangular wave.
• Output Amplitude (VPP): 4.2V to 11.4V peak-to-peak (scales directly with supply voltage).
• Maximum Drive Current: Sinks or sources ~15mA at 5V, or ~35mA at 12V.