Schematic

GND
3
VS
1
Q
2
U1
NP
R1
VCC
GND
3
VS
1
Q
2
U2
NP
R2
VCC
BA
3.3 nF
C1
VCC
A
B
0.1 uF
C2
VCC
M1
M2
1
2
4
3
5
6
M1
Romi Encoder Pair Kit
©2016 Pololu Corporation
www.pololu.com
Note: U1 and U2 are Hall effect sensor ICs in SOT-23 packages, e.g. AH1751-WG.
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIJP101
PIJP102
PIJP103
PIJP104
PIJP105
PIJP106
COJP1
PIM101
PIM102
COM1
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIU101
PIU102
PIU103
COU1
PIU201
PIU202
PIU203
COU2