-40%
1pcs Christmas Trees LED DIY Kit Professional Flash Green Red LED Circuit

1pcs Christmas Trees LED DIY Kit Professional Flash Green Red LED Circuit

$ 2.06

Availability: 529 in stock
  • Item must be returned within: 30 Days
  • UPC: Does Not Apply
  • Restocking Fee: No
  • Refund will be given as: Money Back
  • Return shipping will be paid by: Buyer
  • MPN: Does Not Apply
  • Condition: New
  • Brand: Unbranded/Generic
  • All returns accepted: Returns Accepted

    Description

    1PCS Christmas Trees LED DIY Kit Professional Flash Green Red LED Circuit
    This circuit is composed of 16 pcs LED (light emitting diode).
    The 16pcs LED divided into four groups, and each group has different flashing frequencies,
    when four groups flash together.
    This item looks like a little Christmas tree. the circuit is powered by a 9V battery.
    Advantages:
    This circuit is simple and practical, low power consumption.
    It uses integrated circuits for driving: fewer
    parts , and the line is simple and easy to understand.
    External wiring kit: with pluggable plug for easy replacement of parts
    at any time and conducive circuit debugging.
    Also allows us to deepen our understanding of
    the principles of the circuit in the debugging process.
    This line is in the form of the oscillation circuit by the cycle generated by the following principles:
    -after the first charge, the capacitor C1 & C4 charging is complete.
    -capacitors C2 & C3 will continue to charge.
    -when the transistor Q1 & Q4 is turned on at the same time, it discharges the capacitor C1 & C4.
    -capacitors C2 & C3 is fully charged, the transistor Q1 & Q4 will be closure,
    while also charging the capacitor C1 & C4 again.
    -transistors Q2 & Q3 is turned on while the capacitor C2 & C3 will be discharged.
    -By analogy, the flash of speed is the oscillation frequency,
    and the frequency is determined by the resistor R & capacitance C values.
    Suite: PCB circuit boards, battery box components. (No batteries)
    If you need the instruction, contact me, I will send you a data download link~
    Board Size:70mm*110mm
    Payment
    Payment
    Payable To
    Note
    PayPal
    Paypal
    All payments are due within 7 days of the close of auction. Failing to do so, non-paying bidders will be reported to eBay.
    Shipping Policy
    Delivery Time
    We ship to worldwide, it usually takes 10-30 Business Days to delivery.
    Shipping address
    We ship to your PayPal address. Please, make sure to provide us with correct, precise, and detailed shipping Address.
    Send Time
    Items will be shipped within 1 to 3 business days upon payment received or cleared.
    Note
    If you don't receive items over 30 business days, please notify us via eBay message.
    Return Policy
    We appreciate your business and offer an instant 7 days return policy.(7 days after receive the item). The returned item has to be in its original condition. We are able to refund your money without shipping cost.
    Contact us
    For anything about product, price, shipping or order status, please contact us via eBay message.
    We love positive feedback and 5 scores DSR. We will leave it for everyone that leaves it for us.
    Powered by SoldEazy