UM0426
Schematics
Doc ID 13472 Rev 5
33/46
Figure 25.
Joystick, LCD, tamper button, wakeup button, user button
S
T
M
ic
ro
e
le
ct
ro
ni
cs
Tit
le
:
N
u
m
b
er
:
R
ev
:
S
heet
o
f
B.
1(PC
B.
SC
H
)
Da
te
:
200
7-06-2
1
R42
10K
R43
10K
R44
10K
R45
10K
R41
10K
+3
V
3
C44
100
nF
C43
100
nF
C42
100
nF
C41
100
nF
C40
100
nF
R4
6
10
0
CO
MM
O
N
5
Sel
ect
io
n
2
DW
ON
3
LE
FT
1
R
IGHT
4
UP
6
U1
6
M
T
008
-A
R5
0
22
0K
1
4
3
2
B2
WK
UP
C4
5
do
not
f
it
+3
V
3
R4
7
10
0
R5
1
4K
7
1
4
3
2
B3
US
ER
C4
6
10
0nF
+3
V
3
R4
8
10
0
R5
2
4K
7
1
4
3
2
B4
Ta
m
pe
r
C4
7
10
0nF
+3
V
3
R4
9
10
0
MB
5
2
5
6
1
1
S
T
M
32F
10X
-128K
-E
V
A
L LC
D
&
Joyst
ic
k
Vss
1
Vc
c
2
VO
3
CL
K
4
SID
5
CS
6
A
7
K
8
U1
9
HX
M
1
220
32-
GB
1
(
do n
ot f
it)
PB2
PB1
5
PB1
3
+3
V
3
R
106
0
R1
07
do
no
t f
it
R1
08
do
not
f
it
+5
V
+3
V
3
C7
0
10
0nF
R7
6
0
R7
5
0
R7
4
0
R7
3
0
R7
2
0
PD
8
PE
0
PE
1
PD
14
PD
12
R8
5
33
0
PA
0
R7
8
0
PB9
R6
2
0
PC1
3
+3
V
3
R
ES
ET#
PB2
PB1
3
PB1
5
PB1
4
PD
7
PD
15
PA
8
CS
1
SCL
2
SD
I
3
RS
4
WR
5
RD
6
RE
SE
T
8
VDD
9
VC
I
10
SD
O
7
GN
D
11
GN
D
12
BL
_V
D
D
13
B
L
_C
o
ntr
ol
14
BL
_G
N
D
15
BL
_G
N
D
16
U1
7
C
olo
r LC
D m
od
u
le
+3
V
3
JO
Y_S
E
L
JO
Y_D
O
WN
JO
Y_L
EF
T
JO
Y_R
IGH
T
JO
Y_U
P
LC
D_
C
S
LC
D_
C
LK
LC
D_
DO
LC
DI
_
D
I
LC
D_
R
S
LC
D_
WR
R
ES
ET#
LC
D_
ba
c
kli
ght
Ant
i_T
am
pe
r
MC
_
E
nA
/W
A
K
E
U
P
Us
er
_
B
u
tto
n
R6
7
do
not
f
it
R6
6
0
+3
V
3
Joy
s
ti
ck
TFT
L
C
D
Gr
a
y
L
C
D
Tam
p
e
r B
u
tt
o
n
W
akeup
B
u
tt
on
Us
e
r B
u
tt
o
n
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