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Simple Flash Circuit Electronic Production Electronic Suite DIY

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Description 
Suite name: simple flash circuit suite
Suite type: YSG - 1
Working voltage: 3-9 v
LED colors: red highlight
PCB size: 31 * 28 mm
 
Module Diagram
Principle of Operating
For YSG-1, the Q1 and Q2 form the multivibrator which used to control the flashing of these two LEDs.
And here is the operating principle of multivibrator. As there is difference between the components, Q1 or Q2 will be turn on at the first place after the boot. If Q1 turns on at the first place, the voltage of Q1 collector will be 0V and the D1 starts light. As it cannot have a sudden change on the voltage of two ends of the capacitance, the Q1 collector with 0V will let the base potential of Q2 reduced to 0V through C1 and let the Q2 turn off. D2 turns off at this time. When the charge voltage of C1 increases to the breakover voltage of Q2, the Q2 turns on. And the voltage of Q2 collector reduced to 0V and D2 starts to light. In the same way, the Q2 collector with 0V will let the base potential of Q1 reduced to 0V through C2 and let the Q1 turn off. D1 turns off at this time. The multivibrator will operate according to this cycle to let two LEDs light by turns.
And the flashing frequency of these two LEDs depends on the specification of C1、C2、R2 and R3.

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1. Hongkong / Sinapore Airmail

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $3 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

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(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. EMS/DHL/UPS Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
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Note: Shipping Fee to other countries, please contact orders@ICStation.com

(2) Shipping Time
Shipping time is 3-5 working day (about 1 week) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver in 2-3 day (DHL) or 1 week (EMS,) or 2 weeks (Registered Email), please pay attention to the arriving time of the package. 

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3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

Registered Airmail: www.17track.net/en

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Simple Flash Circuit Electronic Production Electronic Suite DIY
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