Schematic

GND
2
VCC
3
CTRL
1
LED1
4
LED2
6
ISET
5
LED Driver
RSET
VCC
0.1uF
LED2
CTRL
10k
VCC
CH1
VCC
GND
CH2
CTRL
1
2
3
4
QTR/QTRX/QTRXL Reflectance Sensor Arrays
©2018 Pololu Corporation
www.pololu.com
R
Schematic diagram
QTR/QTRX/QTRXL-HD-02RC
Page 2 of 6
1
2.2 nF
VCC
220
CH1
2.2 nF
VCC
220
CH2
VCC
LED2
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIJP101
PIJP102
PIJP103
PIJP104
COJP1
PIJP201
COJP2
PIR101 PIR102
COR1
PIR201 PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
COR4
PIU101
PIU102
PIU103
PIU104
COU1
PIU201
PIU202
PIU203
PIU204
COU2
PIU301
PIU302
PIU303
PIU304 PIU305
PIU306
COU3