Password Lock DIY Kits Suite Multi-Functional Simple Coded For Teaching

Product Introduction:

1.Operating Principle:press S1,U1A Q=1;press S4,U1B Q=1;press S7,U2A Q=1;press S9,U2B Q=1;when open the lock,indicator lamp LED1 will be on;and it shows input password is correct.At the same time,U2B Q=0,U3 Y=1,making the first three triggers all clear;if you want to clear U2B,indicator lamp LED1 off,you can press S8.

2.According to above analysis,the password is 1479 in turn.during the process of inputing password,if you don't press the key in the proper order or press other trigger clear port (R port) key,then the password is false.

 

Packing List:

Name

Parameter

Quantity

IC

CD4013

2

IC

CD4011

1

SMD Resistor

10K ohm

6

Resistor

10K ohm

1

Resistor

510 ohm

1

Electrolytic Capacitor

10uF

1

LED

5mm Red

1

Tact Switch

6*6mm

10

PCB

 

1

  • If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.
    We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money.

  • 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 contact 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.
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Am 02.09.21 hat der Verkäufer die folgenden Angaben hinzugefügt:

DataCaciques