Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
SEQUENTMICROSYSTEMS.COM
RPI Connector 3.0
8-MOSFETS
A
6 7Sunday, January 24, 2021
Title
Size Document Number Rev
Date: Sheet of
SDA
SCL
RDPB
RASP_RX
3.3V
RS485B
RS485A
RASP_TX 485_TX
485_RX
3.3V
+5V
RASP_TX
RASP_RX0
R28
10K
R33
2K
1
2
J121
TB2
C2
10uF
C4
.22uF
R32
2K
TP1
J12
KY15RB
1
2
Q1
BSN20
1
3
2
D10
SM712
12
3
R30 100
J1
PI-CONN
1
3
5
7
9
25
39
2
4
14
20
30
34
11 12
13
6
8
10
15
17
16
18
19
21 22
23 24
26
27 28
29
31 32
33
35 36
37 38
40
U4
B0512
3
2
1
4
0V
VIN
GND
+VO
R34 10
TP2
U5
SP3485
8
3
5
2
4
6
7
1
VCC
DE
GND
RE
DI
A
B
RO
TP3
SW1
R31 100
TP4
C3
10uF
R35 10
SCL
SDA
GND
+5V
RASP_RX
GND
+12V
0V-OUT
RASP_RX0