Figure 10.
MEMS, button and LEDs
VB
lu
e
V
B
lu
e
VB
lu
e
VB
lu
e
VB
lu
e
V
B
lu
e
VB
lu
e
P
DM
_C
LK
I2
C
_SC
L
I2
C
_SD
A
IN
T
1_A
G
IN
T
2_A
G
P
DM
_D
A
T
A
I2
C
_S
C
L
I2
C
_S
D
A
B
U
TT
ON
1
LE
D
1
LE
D
2
R
7
100
K
R
3
4K
7
M
1
M
P34
D
T
05
-A
DOU
T
4
LR
2
GND
5A
V
D
D
1
C
LK
3
GND
5B
GND
5D
GND
5C
R
10
10
0
R
9
1K
R
4
1K
C
6
10
nF
C
4
100
nF
R
6
4K
7
C
3
100
nF
B
utt
on
1
1
2
3
4
5
6
U
4
LS
M
6D
S
L
GND1
6
VDDIO
5
IN
T
1
4
S
C
x
3
S
D
x
2
S
DO
/SA
0
1
V
D
D
8
IN
T
2
9
OC
S_A
ux
10
S
DO
_A
ux
11
CS
12
SCL
13
GND2
7
SDA
14
C
5
100
nF
LED
2
LED
B
lu
e
2
1
LED
1
LED
G
ree
n
2
1
UM2257
Hardware description
UM2257
-
Rev 2
page 6/35
