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$9.23
DollaTek 5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator โ€” image 1
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DollaTek 5Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

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$9.23
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About this item
  • Main chip: N5555;Input voltage: DC5-15V; Output amplitude: 4.2V V-PP(5v input) to 11.4V V-PP(12V input); Output frequency 1Hz-50Hz, 50Hz-1KHz, 1KHz-10KHz, 10KHz-200KHz Four Optional.
  • There are 4 jumpers and 2 variable resistors on the module, users can adjust the output wave with these components, to get their ideal wave easily.
  • Output LED indicator,: low-level LED light, high-level LED off, the frequency is low when the LED flashes.
  • Capacitive capacity determines the frequency range, the user can calculate the adjustment according to their own needs.
  • The output duty cycle can fine-tune. Duty cycle and frequency is not separately adjustable, adjusting the duty cycle will change the frequency.
Product description

Features: 1. As a square wave signal generator,generates a square wave signal used for experimental development. 2. Used to drive a stepper motor for generating a square wave drive signal. 3. Generate adjustable pulse for MCU. 4. Generate adjustable pulse,to control circuitry associated. 5. Size: 31mm x 22mm 6. Main chip: NE555 7. Input Voltage: 5V-15V DC. when power supply is 5 V , the output current can be 15 MA around; when 12V power supply, the output current can 35 MA around 8. Input current: โ‰ฅ100 MA 9. Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different input voltage, the output amplitude will be different) 10. Maximum output current: โ‰ฅ15MA (5V power supply, V-PP greater than 50%), โ‰ฅ35MA (12V power supply, V-PP greater than 50%) 11. Output with LED indication(low level ,LED will on; high level,LED will off;low frequency, the LED flashes) 12. The output frequency range is selectable: LF file: 1Hz ~ 50Hz IF file: 50Hz ~ 1kHz High-frequency file: 1KHz ~ 10kHz HF file: 10kHz ~ 200kHz 13.The output duty cycle can fine-tune;duty cycle and frequency is not separately adjustable;adjusting the duty cycle will change the frequency Package included: 5 x NE555 Pulse Frequency Duty Cycle Adjustable Module

Product details
Brand
DollaTek
Manufacturer
DollaTek
Colour
red

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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