Features:1. NE555 chip onboard2. A single channel output, the output duty cycle square wave is about fifty percent3. Onboard adjustable resistance, resistance can be controlled to adjust the output fr..

NE555 Pulse Frequency Duty Cycle Adjustable Module Square/rectangular Wave Signal Generator & Stepping Motor Driver1.Input Voltage: 5V-15VDC. when power supply is 5V , the output current can be 15..

XY-PWM1 Signal Generator Module Adjustable PWM Pulse Frequency Duty Cycle Square Wave Rectangular Wave Dual System 1HZ-15KHZModule description:PWM output can set frequency and duty cycle respectively...