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Details about  NIB NE555 pulse frequency adjustable module Square wave signal generator

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NIB NE555 pulse frequency adjustable module Square wave signal generator
Item Ended
Item condition:
Brand New
03 Jul, 2015 13:54:10 AEST
AU $9.99
FREE Standard International Flat Rate Postage | See details
Item location:
default, Hong Kong

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Last updated on  22 Jun, 2015 14:01:16 AEST  View all revisions

Item specifics

Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Brand: Unbranded
MPN: Does not apply UPC: Does not apply

NE555 pulse frequency adjustable /square wave signal generator module (based on NE555 chip)


size: 3.5CM*3.6CM
1, Main chip: NE555;
2, Input voltage: 5V-15VDC. (When 5V power supply, output current =15MA; when 12V power supply, output current=35MA);
3, Input current: ≥ 100MA
4, the output amplitude: 4.2V V-PP to 11.4V V-PP. (according to the different input voltage, output will be different)
5, Maximum output current: ≥ 15MA (5V power supply, when V-PP is greater than 50%), ≥ 35MA (12V power supply, when V-PP is greater than 50%)


1. use as a square-wave signal generator, generate square wave signals used for experimental development.
2. to generate square wave signal driving stepping motor drive.
3. adjustable pulses generated for use by the MCU.
4. adjustable pulse control related circuits.

Characteristics and advantages:

1, output with LED indication(low level LED ON, high level LED OFF, at lower frequencies than the LED flashing);
2, the output frequency range level can be selected, the output frequency adjustable;
Low frequency: 1Hz~50Hz
MF: 50Hz~1kHz
HF: 1KHz~10kHz
HF: 10kHz~200kHz
3, the output duty cycle can Adjustable(Small), adjustable duty ratio will change the frequency.
4, the output frequency adjustable;
Cycle T=0.7 (RA+2RB) c
RA, RB for the 0-10K adjustable;
C=0.001UF low frequency gear;
C=0.1UF MF gear;
High frequency in document C=1UF;
C=100UF high frequency gear, wave frequency buyers can own calculation.

Package Includes:

1 x NE555 square wave signal generator module - pulse frequency adjustable

More product photos and test photos:

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- Items will be shipped to buyer's PayPal address, within 24 hr during business days as soon as payment cleared.


- We will ship your items by Hong Kong Airmail, or China Post Airmail, or Singapore Airmail for free with tracking number if your purchase exceeds USD30. If not, and you still need registered shipping with tracking code, please kindly contact us when you place an order.


- If you don't receive items over 30 business days, please feel free to contact with us.


- Approx. Delivery time for reference:


  Australia / United States / United Kingdom /

  10 - 20 business days



  10 - 20 business days


  some European countries: France / Spain / Italy / Germany / ...

  may take up to 3-7 weeks due to strict Customs Inspection


  Russia, Ukraine, Belarus

  may take up to 6-8 weeks due to strict Customs Inspection


  Brazil, Argentina, and other South American Countries:

  may take up to 6-8 weeks due to strict Customs Inspection


Contact us

- If you have any questions, please feel free to message us. We'd reply within one day during working days Monday to Friday, and will reply within 48 hour during weekends or public holidays.

- We greatly appreciate your POSITIVE feedback. Please do not leave negative or neutral feedback without any contact. If you haven't received item in 30 days, please contact us

- We accept PAYPAL only.
Return policy

We accept Return for Buyer's any reason, but item must be "Sealed and Un-used Original Condition."
If you already opened or used item, return will be NOT accepted. Shipping is NOT refundable.
We will send refund as soon as returned item arrived. If you received wrong item, please let us know to resolve problem.
We will exchange to correct item. (In this case, We will pay return shipping.) Everything we sell is 100% guaranteed authentic.
We authenticate every item on our site before it is listed. We stand behind the authenticity of our items with a money-back guarantee.
We appreciate your trust!

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