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Page 34
Page 35
R7
100
VCC-3.3
R5
27
R4
27
VREF-1.8
C31
22pF
C30
22pF
X3
32.768KHz
C2
22pF
C1
22pF
X1
8MHz
E9
10uF
MOSI2-RG8
SCK2-RG6
R
D
1
R
D
2
R
D
3
R
D
4
R
D
5
R
D
6
R
F1
R
F0
R
G
0
MISO1-RF7
SCK1-RF6
MOSI1-RF8
SDA1-RG3
SCL1-RG2
SOSCO
SOSCI
TX1-RF3
RX1-RF2
RA14
RD0
RA15
RD8
RD9
CLKO
CLKI
RD10
R
D
14
R
D
15
R
B9
R
B8
PG
D
1
PG
C1
R
F1
3
R
F1
2
RG15
RA13
RA12
RB1
RB2
RB3
RB4
RB5
MISO2-RG7
RC2
30
29
28
27
34
33
58
57
56
55
54
53
52
46
36
35
42 43 44 45
37
50
9
48 49
11
12
32
72
69
68
67
66
65
64
63
4
3
78 77
24
23
18
17
16
15
14
13
5
6
7
8
10
79
80
1
2
22
21
20
19
62
61
60
59
38 39 40 41
47
71
31
51
70
26
25
76
75
74
73
dsPIC33FJ256GP710A
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10
0
R
B1
1
R
B10
/A
N
10
R
B9
/A
N
9
R
B8
/A
N
8
R
B1
3
R
B1
2
RE7
RC1
RC2
RC3
RA15
SCL1/RG2
R
B1
5
R
B1
4
SDO1/RF8
SDI1/RF7
SCK1/RF6
SDA1/RG3
G
N
D
VC
C
R
A6
R
G
0
R
G
1
R
E0
R
F1
R
F0
R
D
7
R
D
6
RE6
RE5
R
E2
R
G
13
R
G
12
R
G
14
R
E1
R
A7
RG8/SDO2
R
A9
/V
re
f-
RB1
RB2/AN2
RB3
RB4
RB5
RA13
RD9
RD8
U1RX/RF2
U1TX/RF3
GND
RG7/SDI2
RG6/SCK2
R
A1
R
E3
R
E4
RG15
VCC
R
B7
/P
G
ED
1
R
B6
/P
G
EC1
RB0
R
F4
R
F5
RA14
RA5
R
D
14
R
D
15
RA2
R
F1
3
VC
C
RA3
VCC
VC
C
RA12
RA0
VCC
G
N
D
R
F1
2
RA4
GND
VCA
P
AG
N
D
AV
CC
R
A1
0/
Vr
ef
+
MCLR
RC4
CLKI/RC12
CLKO/RC15
RD10
R
D
3
R
D
1
SOSCI/RC13
SOSCO/RC14
GND
R
D
2
R
D
12
R
D
13
R
D
4
R
D
5
RG9
RD11
RD0
U1
RST
RX
TX
SCK
SDI
A
D
S
O
D
S
SCL
AN
INT
PWM
VCC-3.3
VCC-3.3
VCC-SYS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
HDR1
M1X26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
HDR2
M1X26
RA13
RA12
RA14
MOSI1-RF8
SCK1-RF6
MISO1-RF7
RA15
RB1
RB2
RB3
RB4
RB5
RB9
RB8
RG15
MOSI2-RG8
SCK2-RG6
MISO2-RG7
RG0
RD10
RB6
RB7
RD14
RD15
RF1
RF0
SDA1-RG3
SCL1-RG2
TX1-RF3
RX1-RF2
L
R
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD8
RD9
RF13
RF12
RC2
RST
C5
100nF
C6
100nF
C7
100nF
E8
10uF
VCC-3.3 VCC-3.3 VCC-3.3
VCC-3.3
C8
100nF
VCC-3.3
decoupling capacitors
12. Pads
Most microcontroller pins are available for further connectivity via two 1x26 rows of connection
pads on both sides of the mikromedia board. They are designed to match additional shields,
such as Battery Boost shield, Gaming, PROTO shield and others.
Pads HDR2
Pads HDR1
Figure 12-1: Pads connecting schematics