7.6 Embedded sensors
7.6.1
I
2
C interface
The STM32WB5MM-DK embedded sensors are connected to the STM32W5MMG module with an I
2
C bus. The
Time‑of‑Flight (ToF), accelerometer/gyroscope, and temperature sensors are connected to STM32W5MMG I2C3
bus.
Table 10. STM32W5MMG I
2
C
STM32W5MMG port Description
PB13 (pin 35) I2C3_SCL
PB11 (pin 46) I2C3_SDA
The address is a 7-bits address with an additional R/W bit (HIGH for reading, LOW for writing). describes the
different address to R/W action for each component:
Table 11. Sensor I
2
C addresses
Device Action Address
ISM330DHCX
(Accelerometer/gyroscope sensor)
Read
0b11010111 (D7h)
Write
0b11010110 (D6h)
STTS22H
(Temperature sensor)
Read
0b01110001 (71h)
Write
0b01110000 (70h)
VL53L0CXV0DH/1
(Time‑of‑Flight sensor)
Read
0b01010011 (53h)
Write
0b01010010 (52h)
UM2825
Embedded sensors
UM2825 - Rev 1
page 19/42
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