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- 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 small Christmas tree. The circuit is powered by a 9V battery.
- 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.
- - Board Size:70mm*110mm
1 x Three-Dimensional 3D Christmas Tree LED
When you place an order, please choose a shipping method and pay for the order including the shipping fee. We will send the items within 5 days once your payment is completed.
We do not uarantee delivery time on all international shipments due to differences in customs clearing times in individual countries, which may affect how quickly your product is inspected. Please note that buyers are responsible for all additional customs fees, brokerage fees, duties, and taxes for importation into your country. These additional fees may be collected at time of delivery. We will not refund shipping charges for refused shipments.
The shipping cost does not include any import taxes, and buyers are responsible for customs duties.
All order will ship out in 1-5 buiness after payment verify .Pls wait in patient.
China Post mail is not fast , Usally need 15-60days arriived.If in urgent .Pls choose DHL/ Fedex/EMS.We can write low value for cutomer if in need!
China Post Ordinary Small Packet Plus just can track to the domestic of our country,but it not effect your receiving.
China Post Ordinary Small Packet Plus and China Post Registered Air Mail all can track in www.17track.net/en/