Product Details

 

Description:


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.

Bright spots:

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:

1, after the first charge, the capacitor C1 & C4 charging is complete.

2, capacitors C2 & C3 will continue to charge.

3, when the transistor Q1 & Q4 is turned on at the same time, it discharges the capacitor C1 & C4.

4, capacitors C2 & C3 is fully charged, the transistor Q1 & Q4 will be closure, while also charging the capacitor C1 & C4 again.

5, 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)



Board Size: 70mm*110mm

 

 

 

 

Package Listing:

No.

Component

Mark

Parameter

Quantity

1

Metal Film Resistor

R1,R2,R3,R4

1K

4

2

Metal Film Resistor

R5,R6

75K

2

3

Metal Film Resistor

R7,R8

100K

2

4

LED

D1,D3,D5,D7,D9,D11,D13,D15

Red 5mm

8

5

LED

D2,D4,D6,D8,D10,D12,D14,D16

Green 5mm

8

6

Electrolytic capacitor

C1,C2,C3,C4

10uF 50V

4

7

Transistors

Q1,Q2,Q3,Q4

S8050 TO-92

4

8

Connector

J1

 

1

9

Lock Switch

K1

 

1

10

9V Battery Box

 

 

1

11

PCB

 

 

1

12

Screw

 

M3*6

3
  • EBAY Managed Payment. But we only Accept your Ebay Address, please Make sure it's 100% right.
  • Payment must be received in 5 business days of auction closing.
  • Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
  • Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.

1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.

  • All package need to wait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can't take a refund.
  • If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
  • If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.

    We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

DataCaciques