6 Pack NE555 Pulse Generator Frequency Duty Cycle Adjustable Module Square Wave Stepper Motor Driver DC5V-12V Signal Generator for Arduino DIY

Features

• Scope of application of this module Used as a square wave signal generator to produce square wave signals for experimental development. Used to generate square wave signals to drive the stepper motor driver. Generate adjustable pulses for MCU use. Generate adjustable pulses to control related circuits.
• Size: 3.1CM*2.2CM; Main chip:NE555; input voltage:5V-15VDC. 5V power supply, the output current can be about 15MA; 12V power supply, the output current can be about 35MA; Input current:100MA Output amplitude: 4.2V V-PP to 11.4V V-PP.(According to different input voltage, the output amplitude will be different) output current: 15MA or less (5V power supply, V-PP greater than 50%), 35MA (12V power supply, V-PP greater than 50%)
• Advantageous features 1, the output with LED indication, there is no output directly clear (low level LED amount, high level LED extinguished, the frequency is relatively low when the LED flashes); 2, the output frequency range gear selectable, so that the output frequency is more continuously adjustable; Low frequency gear: 1Hz ~ 50Hz. Medium frequency gear: 50Hz ~ 1kHz. Medium and high frequency: 1KHz ~ 10kHz. High frequency: 10kHz200kHz.
• Output duty cycle can be fine-tuned, duty cycle and frequency are not separately adjustable, adjust the duty cycle will change the frequency; the output frequency is adjustable; Period T0.7(RA+2RB)C
• RA, RB is 0-10K adjustable; C0.001UF at low frequency; C0.1UF at medium frequency gear; C1UF for middle and high frequency gear; C 100UF at high frequency, so the frequency of the waveform can be calculated;