Onboard Sensors; Hs3001 Temperature And Humidity Sensor; Ob1203 Biometric Sensor; Figure 17. On Board Sensors - Renesas RX600 Series User Manual

Renesas RX Family

5.7 Onboard Sensors

The CK-RX65N is fitted with several onboard sensors, including a barometric pressure sensor, 9-axis MEMS
motion tracking sensor, indoor air quality sensor, outdoor air quality sensor, biometric sensor, temperature
and humidity sensor.

5.7.1 HS3001 Temperature and Humidity Sensor

An integrated calibration and temperature compensation logic provides fully corrected relative humidity and
temperature values via a standard I²C output. The measured data is internally corrected and compensated
for accurate operation over a wide range of temperature and humidity levels.

Table 19. HS3001 Port Assignment

Pin Number HS3001 Signal Description
1 SCL
2 SDA
3 VC
4 VDD
5 NC
6 VSS

5.7.2 OB1203 Biometric Sensor

The OB1203 is a fully integrated optical sensing module for Pulse Oximetry (PPG - photoplethysmography),
multi-channel Color Sensing (CS), Ambient Light Sensing (LS) and Proximity Sensing (PS). It can determine
human heart rate, blood oxygen saturation (SpO2), respiration rate and heart rate variability (a measure of
stress). The OB1203 integrates all light sources, drivers, and the sensor elements, in a single optically
optimized package.

Table 20. OB1203 Port Assignment

Pin Number OB1203 Signal Description
1 NC
2 SCL
3 SDA
4 LGND
5 LED1
6 LED2
7 LVDD
8 LVDD
9 LVDD
10 LVDD
11 VDD
12 AGND
13 INT
14 NC
R20UT5100EG0100 Rev. 1.00
May.17.22

Figure 17. On Board Sensors

RX65N MCU Port
P12 (SCL0)
P13 (SDA0)
Connect a 0.1 µF decoupling capacitor from VC to ground
3.3 V
NC
GND
CK-RX65N v1 – User's Manual
RX65N MCU Port
NC
P12 (SCL0)
P13 (SDA0)
GND
TP1
TP2
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
GND
P67 (IRQ15)
NC
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