20pcs NE555 Pulse Frequency Duty Cycle Square Wave Rectangular Wave Signal Generator Adjustable 555 Board NE555P Module

Features 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 Package Included 20 x NE555 Pulse Frequency Duty Cycle Square Wave Rectangular Wave Signal Generator