User Guide
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002-32436 Rev. *B
<2021-06>
CY8CKIT-041S-
MAX PSoC™ 4100S Max pioneer kit guide
Hardware
3.2.9
Thermistor
A 10K negative temperature coefficient (NTC) thermistor is present onboard for ambient temperature
measurement. By default, the thermistor is connected in single-ended mode to P2[6], and can be changed to
ratio-metric differential mode by modifying the connections using zero-ohm resistors. The optional pins
provided for ratio-metric mode are also connected to Arduino header (J2). Remove these resistors while
connecting the thermistor in ratio-metric mode.
Figure 28
Schematics of thermistor
TH1
10K
THERM_VDD
C37
10nF
50V
DNI
THERM_OUT
R44
0 OHM
VTARG
R41
10K
1%
R40
0 OHM
THERM_GND
C36
10nF
50V
DNI
Thermistor
R88
0 OHM
DNI
THERM_OUT
R91
0 OHM
R81
0 OHM
DNI
THERM_OUT
R76
0 OHM
P2_7
R71
0 OHM
DNI
P2_5
ARD_P2_5
ARD_P2_4
THERM_VDD
Thermistor Multiplexing
P2_6
P2_4
R73
0 OHM
THERM_GND
R66
0 OHM
R64
0 OHM
DNI
ARD_P2_7
ARD_P2_6