Schematic

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
GND
5V
GND
VIN
47uF/25V
C10
104/50V
C11
GND
VIN
VIN
GND
GND
33nF/50V
C9
FS2
PWMB
GND
5V
GND
VIN
47uF/25V
C13
104/50V
C14
GND
VIN
33nF/50V
C12
FS1
5V
IN1
IN2
IN3
IN4
IN3
IN4
IN1
IN2
GND
AGND
1
FS
2
IN1
3
V+
4
V+
5
OUT1
6
OUT1
7
DNC
8
PGND
9
PGND
10
PGND
11
PGND
12
D2
13
OUT2
14
OUT2
15
V+
16
Ccp
17
D1
18
IN2
19
DNC
20
U2
MC33886
AGND
1
FS
2
IN1
3
V+
4
V+
5
OUT1
6
OUT1
7
DNC
8
PGND
9
PGND
10
PGND
11
PGND
12
D2
13
OUT2
14
OUT2
15
V+
16
Ccp
17
D1
18
IN2
19
DNC
20
U3
MC33886
PWMA
D4
SS54
D5
SS54
D6
SS54
D7
SS54
D8
SS54
D9
SS54
D10
SS54
D11
SS54
R6
1k
R7
1k
VCA
1
DIR
2
A1
3
GND
11
GND
12
GND
13
B8
14
B7
15
B6
16
B5
17
B4
18
B3
19
B2
20
B1
21
OE
22
VCB
23
VCB
24
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
74LVC8T245
3.3V
C3
104
C5
104
GND
GND GND
GND
GND
GND
PWMB
PWMA
1
2
MotoB
1
2
3
IRM
3.3V
GND
VCC
GND
OUT
R2
100
R4
1k
C4 104
P1
1
2
MotoA
M1
M2
M3
M4
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
RPI
3.3V
SDA
SCL GND
P7 TX
GND RX
P0 P1
P2 GND
P3 P4
3.3V P5
MOSI GND
MISO P6
SCK CE0
GND CE1
ID_SD ID_SC
P21 GND
P22 P26
P23 GND
P24 P27
P25
P28
GND P29
aveshare
W
wPiBCM
8
9
7
0
2
3
12
13
14
30
21
22
23
24
25
2
3
4
17
27
22
10
9
11
0
5
6
13
19
26
wPi
15
16
4
5
6
10
11
1
26
27
28
29
BCM
18
14
15
23
24
25
8
7
12
21
16
20
1
31
5V
33uH
L1
104
C8
GND
F1
Fuse Thermal
1
2
Power
VIN
1
ON/OFF
5
GND
3
OUT
2
FBACK
4
U1
LM2596
VIN
D1
SS54
D2
SS54
D3
SS54
R5
1k
LED
470uF/35V
C6
100uF/16V
C7
POWER
Motor
RPi
InfraredLevel Translator
GND
104C2
5V
C1 10UF
P29
P28
P25
P22
P23
P26
1
FS2
1
FS1
5V
1
2
3
4
5
6
switch
OFF
ON
M3
M4
PWMB
M1
M2
PWMA
GND
GND
1
、
Input Voltage
（
VIN
）
Range Up to 40V
2
、
Ensured 3A Output Load Current