Adjustable Square Wave Generator Module with Timer IC for Motor Speed Regulation and Relay Control (Multiple Colors)

Features: Achieve precise control with adjustable pulse frequency (Hz to hundreds of Hz) and 0–100% duty cycle via potentiometers, delivering stable square wave signals for stepper motor drivers and PWM applications. Powered by the NE555 chip with a wide input voltage range of 5V–15V (15–35mA output), ensuring reliable integration into electronics projects while maintaining waveform stability. Designed for electronics enthusiasts, engineers, and makers requiring customizable signal outputs for prototyping, automation systems, or educational STEM/robotics experiments. Suitable for motor speed regulation, LED dimming, relay timing circuits, sound synthesis, and industrial equipment testing where adjustable frequency and duty cycle signals are needed. Two knob interfaces enable real-time adjustments, and the robust construction supports repeated laboratory use. Specifications: Size: 3.1 × 2.2 cm (1.22 × 0.87 inches) Quantity: 2 pcs (4 pcs optional) Package Includes: 2 pcs or 4 pcs Stepper Motor Driver Module Note: Please allow for a 0–1 cm measurement tolerance due to manual measurement. Color representation may vary slightly depending on monitor settings.