ITEM NAME:NE555 Duty Cycle Frequency Adjustable Square Wave New Module Parts Components 100% brand new and high quality Module Scope: -Used as a square wave signal generator produces a square wave signal for the experimental development use. -Used to generate the square wave signal to drive a stepper motor drive. -Produce adjustable pulse for the MCU to use. -Generating adjustable pulse to control the associated circuits. A brief description: -Size:3.5CM * 3.6CM -The main chip:NE555; -Input voltage: 5V-15VDC. 5V power supply, the output current can about 15MA; 12V power supply, the output current can be so 35MA; -Input Current: ? 100MA -Output amplitude: 4.2V V-PP to 11.4V V-PP (depending on the input voltage, the output amplitude is not the same) -Maximum output current:? 15MA (5V power supply, V-PP greater than 50%), ? 35MA (12V power supply, V-PP greater than 50%) Advantages: -Output with LED indication, there is no output LED quantity (low straightforward, high level LED off relatively low frequency LED flashes); -Output frequency range grade optional continuously adjustable output frequency; -Low-frequency stall: 1Hz ~ 50Hz -IF stall: 50Hz ~ 1kHz -In the high-frequency stall: 1KHz ~ 10kHz -High-frequency stall: 10kHz ~ 200kHz -the output duty cycle can fine-tune the duty cycle and frequency is not adjustable separately adjust the duty cycle will change the frequency -the output frequency is adjustable; -Cycle T = 0.7*(Ra + 2*Rb)*C -Ra, Rb:0-10K adjustable; -LF gear C = 0.001UF; -IF file C = 0.1UF; -In the high-frequency file C = 1UF;, -High-frequency gear C = 100UF, the waveform frequency buyers can own calculations. NOTE:Output duty cycle can fine-tune the duty cycle and frequency is not adjustable separately adjust the duty cycle will change the frequency 1x NE555 Duty Cycle Frequency Adjustable Square Wave Module Parts Components.The main chip:NE555;. -Low-frequency stall: 1Hz ~ 50Hz. -IF stall: 50Hz ~ 1kHz. -In the high-frequency stall: 1KHz ~ 10kHz. -High-frequency stall: 10kHz ~ 200kHz. -Output with LED indication, there is no output LED quantity (low straightforward, high level LED off relatively low frequency LED flashes);.