Best Price Free Shipping!!! Octal Responder based on 51 single-chip design / Responder Kits /Electronic Component Compare Prices For

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Best Price - Free Shipping!!! Octal Responder based on 51 single-chip design / Responder Kits /Electronic Component Wonderfull

Compare Prices For - Free Shipping!!! Octal Responder based on 51 single-chip design / Responder Kits /Electronic Component Best Price

Best Price Free Shipping!!! Octal Responder based on 51 single-chip design / Responder Kits /Electronic Component

Product ID : 1000001515588

Price : $7.00

Discount Price : $5.95

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Item specifics

• 
  is_customized:
  Yes
  


• 
  Operating Temperature:
  new
  


• 
  Dissipation Power:
  new
  


• 
  Type:
  Logic ICs
  


• 
  Application:
  Computer
  


• 
  Supply Voltage:
  new
  


• 
  Model Number:
  new
  


• 
  Condition:
  New
  

Product Description

note! ! Below $ 7 $ no tracking number

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Octal Responder based on 51 single-chip design / graduation / curriculum / learning / Responder Kits

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Product Description

 

1, the technical parameters

Operating voltage: DC 4.5-5V (power supply should not exceed 5.5V, the polarity can not be reversed)

Features:

SCM model: STC89C51 STC89C52 AT89S52

Default hair AT89S52,

The main functions are as follows:

1, 4 digital design, front two displays answer in time, the first three stationary display, the first four players display successful answer number.

2, the next row of keys correspond to eight players, most players left for the 1st

3, three buttons on the right, top to bottom: Start / Reset answer time plus one, minus one answer in time. Where Start / Reset key 1 key 2 to use, the system will automatically determine the start or reset;

4, the operation flow: After power digital display "30", meaning that answer in 30 seconds (the default answer in 30 seconds) when the host press the "Start / Reset" button, the countdown began, this time, eight players can answer, for example, if there are players Responder successful digital display "202", 20 represents the remaining 20 seconds No. 2 Responder successful players. If the countdown less than 5 seconds, the buzzer sounds, suggesting that time is about to end, when the countdown to 0 seconds, the end of this question, that there is no answer in the success of any player, the host press "start after the reset button / start again.

5, you can set the countdown time, in the standby state (non-answer state), digital display "30", then press each key to the right of the first two, answer in time plus 1 second. Each time you press the third button on the right side, answer in time minus 1 second.

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Welcome to our shop, enjoy the shipping here, you can contact with me freely if any question, usually we will send datasheet,code via email . hope to do business with you. 

 

payment:

we only accept the payment by credit card,western union.

We apologize that we cannot accept other payment methods, such as cheque or postal orders .

Shipping:

1. We Ship to Worldwide, but Italy, Nigeria, Brazil will take long delivery time .
2. Before buying, Please make sure your address is correct. Or not, please correct it before payment
3. Ship to worldwide from Hong Kong within 12-24 hours after payment completed received, and will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand.
4. we advise shipping by DHL or EMS,and we have gave a discount for you,you can received it in 4-9 business days.
5. it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail

Feedback:

the feedback is very important for us, pls leave me a 5 stars feedback if you are satisfied with our service and our items,or pls contact with me if there are some problem with our items.we will solve it asap.

Warranty and Return:

1. 12-months Warranty for defective items (excluding items damaged and/or misused after receipt).

Buy with confidence

1. Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.
2. Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.
3. Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.
4. Return shipping is to be paid by the Buyer.

ABOUT US:

we have much more products, pls contact us if you need.welcome to wholesale. MUCH THANKS!!

Packaging Details

• 
  Unit Type:
  piece
  


• 
  Package Weight:
  0.1kg (0.22lb.)
  


• 
  Package Size:
  11cm x 11cm x 11cm (4.33in x 4.33in x 4.33in)
  

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