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Doorbell-Controlled Security Switch

Doorbell-Controlled Security Switch

4

2

IC1
4N35

5

1

3

N1

1

2

7

14

9

10

12

13

14

IC1

CD4013

11

4

3

8

7

5

6

Q

Q

DOOR BELL

AC

230V

IN

N

L

S1

ON/OFF

DOOR

BELL

SWITCH

C1

180n

400V

R1

2K

R2

1M

D1

1N4001

C2

470n

R4

10K

R3

10K

T1

BC547

RL1

9V, 1C/O

RELAY

N/C

N/O

D3

1N4001

S1

RESET

D2

1N4001

D4

1N4001

IC2 (N1) = CD4093

C3

100n

GND

J1

9V

OUPUT

+9V

Doorbell-Controlled Security Switch

0
0
0
publish time: 2020-09-24
Circuit Everyday

One way to check if someone is at home is to ring the doorbell. Anti-theft can also use this technique. The circuit described here is very convenient. It is a simple doorbell controlled multifunctional safety switch, which can immediately start the connected safety equipment (such as night vision door camera) to operate normally.

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