2.2nF
C48
220
R45
5V
2.2nF
C50
220
R49
5V
2.2nF
C52
220
R51
5V
U15
U17
U19
2.2nF
C49
220
R46
5V
2.2nF
C51
220
R50
5V
U16
U18
DOWN1
D9
IR
D10
IR
D8
EMIT
EMIT
5V
EMIT
10nF
C53
220
R52
5V
BUMPL
10nF
C54
220
R53
5V
BUMPR
220
R48
200
R44
100
R47
DOWN2
DOWN4
DOWN3
DOWN5
Q10
Q11
Line (reflectance) sensors
3pi+ 32U4 Control Board
©
2020 Pololu Corporation
www.pololu.com
Schematic diagram
Sensors
Page 3 of 4
R
®
Bump sensors
3V3
1 uF
C6
0.1 uF
C7
0.1 uF
C8
5V
3V3
Q2
10k
R15
10k
R16
SCL
D3
Q3
3V3
SDA
D2
3V3
10k
R17
10k
R18
10k
R54
10k
R55
3V3
SCLLV
VDD_IO
6
SCL/SPC
1
GND
3
SDA/SDI/SDO
11
SDO/SA1
9
CS
10
RES(GND)
2
INT
7
RES(GND)
12
VDD
5
C1
4
DRDY
8
LIS3MDL
VDDIO
1
SCL/SPC
2
SDA/SDI/SDO
3
SDO/SA0
4
CS
5
INT2
6
INT1
7
RES(GND)
8
RES(GND)
9
RES(GND)
10
RES(GND)
11
GND
12
GND
13
NC
14
RES
15
VDD
16
LSM6DS33
SDALV
SA0
CS
0.1 uF
C9
Inertial sensors
