kstrckr / b-l4s5i-iot01a-mvp

B-L475E-IOT01A Iot Node Minimum Viable Project

A base starting point for projects using the STM B-L475E-IOT01A Iot Node dev board: https://www.st.com/en/evaluation-tools/b-l475e-iot01a.html

useful links

https://github.com/stm32-rs/stm32-rs

I2C2 Addresses

Modules	Description	SAD[0:6]+R/W	I2C write address	I2C read address
HTS221	Capacitive digital sensor for relativehumidity and temperatur	1011111x	0xBE	0xBF
LIS3MDL	3-axis magnetometer	0011110x	0x3C	0x3D
LPS22HB	MEMS nano pressure sensor	1011101x	0xBA	0xBB
LSM6DSL	3D accelerometer and3D gyroscope	1101010x	0xD4	0xD5
VL53L0X	Time-of-Flight ranging and gesturedetection sensor	0101001x	0x52	0x53
ST25DV04K	Dynamic NFC/RFID Tag IC	1010x11x	0xAE for systemarea0xA6 for usermemory	0xAF for systemarea0xA7 for usermemory
STSAFE-A110	Highly secure solution	0100000x	0x40	0x41

SPI CSN Assignments

Module	Description	Pin Name
ISM43362-SPI3_CSN	WiFi	PE0
SPSGRF-915-SPI3_CSN	Sub Ghz Module	PB5
SPBTLE-RF-SPI3_CSN	Bluetooth LE	PD13
SPI3_SCK	MCU SCK	PC10
SPI3_MISO	MCU MISO	PC11
SPI3_MOSI	MCU MOSI	PC12

Module Reset Pins

Module	Pin Name
SPBTLE-RF-RST	PA8
ISM43362-RST	PE8
STSAFE-A110-RESET	PD7

QSPI NOR Flash Memory Pins

Module Pin	Pin Name
QUADSPI_CLK	PE10
QUADSPI_NCS	PE11
QUADSPI_BK1_IO0	PE12
QUADSPI_BK1_IO1	PE13
QUADSPI_BK1_IO2	PE14
QUADSPI_BK1_IO3	PE15

MEMS Microphone

Signal/Label	Pin Name
DFSDM1_DATIN2	PE7
DFSDM1_CKOUT	PE9