Schematic

1
1
2
2
3
3
4
4
D D
C C
B B
A A
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
27 28
29 30
31 32
33 34
35 36
37 38
39 40
RPI1
3.3V 5V
P_SDA 5V
P_SCL GND
P4 P_TX
GND P_RX
P17 P18
P27 GND
P22 P23
3.3V P24
P_MOSI GND
P_MISO P25
P_SCK P_CE0
GND P_CE1
P5 GND
P6 P12
P13 GND
P19 P16
P26 P20
GND P21
wPiBCM
8
9
7
0
2
3
12
13
14
21
22
23
24
25
2
3
4
17
27
22
10
9
11
5
6
13
19
26
wPi
15
16
4
5
6
10
11
26
27
28
29
BCM
18
14
15
23
24
25
8
7
12
21
16
20
1
3V3
+5V
GND
GND
VIN
A0
A1
A2
A3
A4
A5 D0/RX
D1/TX
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
GND
SDA
SCL
P_RX
RXD/D0
1
TXD/D1
2
D2
3
PWM/D3
4
D4
5
PWM/D5
6
PWM/D6
7
D7
8
D8
9
PWM/D9
10
PWM/D10
11
PWM/MOSI/D11
12
MISO/D12
13
GND
15
AREF
16
SDA
17
SCL
18
A5
19
A4
20
A3
21
A2
22
A1
23
A0
24
VIN
25
GND
26
GND
27
5V
28
3V3
29
RESET
30
IOREF
31
A7
32
Arduino Board
SCK/D13
14
Arduino1
ID_SD ID_SC
5V
33uH
L2
104
C5
GND
VIN
1
ON/OFF
5
GND
3
OUT
2
FBACK
4
U1
LM2596
VIN
D9
SS54
D10
SS54
R1
1k
LED1
100uF/16V
C3
100uF/16V
C4
1 2 3
4 5 6
S1
switch
-
+
+
-
Battery
D11
SS54
1
2
3
4
5
6
UART SWITCH
D1/TX
P_TX
R4
1K
R5
1K
D0/RX