DIGITAL LOCK PROJECT -PG4 OF 4
- 1. 0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
E E
F F
G G
s10
R15
100kΩ
R16
100kΩ
VCC
5V
U12
LM555CM
GND
1
DIS7
OUT 3RST4
VCC
8
THR6
CON5
TRI2
C5
0.1µF
C6
220µF
K
K1
D6
1N4004G
Q1R17
220Ω
J2
M1
+
-
θ
V1
12V
3 14
15 9
T3
(PG 2) VDD
12V
(RESET)
(22 SEC.)
U13A
74LS32N
J3 (PG3)
2N3904