ITEM NAME:NE555 Pulse Generator Adjustable Frequency Module 5-15V DC Description: - NE555 Pulse Module, adjustable frequency module. - 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. Specification: - Size: approx. 2.9 x 3.6cm; The fixed hole distance is 22.5mm and 30.5mm - 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, (low level: LED light on, high level: LED goes off, low frequency: LED flashes) - -Output frequency range grade optional continuously adjustable output frequency; - -Low frequency: 1Hz ~ 50Hz - -Middle frequency: 50Hz ~ 1kHz - -Medium-high frequency: 1KHz ~ 10kHz - -High-frequency: 10kHz ~ 200kHz - -the output frequency is adjustable - -Cycle T = 0.7(Ra + 2Rb)C - -Ra, Rb: 0-10K adjustable - -LF C = 0.001UF - -MF C = 0.1UF - -MID HF C = 1UF - -HF C = 100UF, so the waveform frequency buyers can own calculations. Package Included: 1 Piece NE555 Pulse Module Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks!.NE555 Pulse Module, adjustable frequency module. - The main chip: NE555. 1 Piece NE555 Pulse Module. - Used to generate the square wave signal to drive a stepper motor drive. - Produce adjustable pulse for the MCU to use.