Secret Diagram: security

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Tuesday, 31 January 2017

Security Door Electronic Key

It is a relatively simple circuit of electronic lock of safety with code of 7 digits. It should is given attention in the time that will be stepped the keys, that shape code and it does not exist it delays. With the right step of keys and if code is right then is activated exit Q7 for roughly 4 seconds, driving the transistor Q2, which with the line can drive one relay, for the opening of door, or any other circuit.

Circuit diagram :

security-door-electronic-key Circuit diagram

Security Door Electronic Key Circuit Diagram

With LED D we can have optical clue of activation. The code of circuit, as it has been given have been:1704570 but can change, if we change the connections between in the exits of IC1 and the switches.

Parts List :

R1-7=4.7Kohm
R8=15Kohm
R9=1Mohm
R10-13=10Kohm
R11=100ohm
R12=220Kohm
R14=1.2Kohm
C1-3=100nF 100V
C2=4.7uF 25V
D1-2=1N4148
D3=RED LED 3mm
IC1=4022
Q1=BS170
Q2=BD679
S1-10=Push button or keyboard

Readmore → Security Door Electronic Key

Thursday, 1 September 2016

Topic Electronic eye controlled security system circuit diagram

Post: Electronic eye controlled security system circuit diagram

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