Hardware description STEVAL-IDI001V1
3 Hardware description STEVAL-IDI001V1
This board offers to the user an evaluation kit for STMicroelectronics motion MEMS
(accelerometer, gyroscope, magnetometer), environmental sensors (humidity, temperature,
pressure and UV index), optical module (proximity and ambient light) and digital
microphone array. The high processing power of the STM32F439 allows the user to
implement embedded sensor fusion algorithms. The obtained data can be stored in a
microSD card through the adapter mounted on the board via USB, or a different interface if
the proper expansion board is plugged on the STEVAL-IDI001V1-Exp. The main
components mounted on board are::
LSM9DS1: MEMS 3D accelerometer (±2/±4/±8g) + 3D gyroscope
(±245/±500/±2000dps) + 3D magnetometer (±4/±8/±12/±16 gauss)
LPS25HB: MEMS pressure sensor, 260-1260 hPa absolute digital output barometer
HTS221: Capacitive digital relative humidity and temperature sensor
UVIS25: Ultraviolet radiation index sensors
2x VL6180X: range and ambient light sensor, IR emitter
4x MP34DT01: ultra-compact, low-power, omnidirectional, digital MEMS microphone
STM32F439IIH6: high performances MCU ARM®Cortex™-M4F @ 180MHz with
256KB of embedded SRAM
External SRAM: 8MB of external SRAM
All the sensors, excluding the microphones, are connected to a single I²C bus. The
LSM9DS1 and the LPS25HB can also be connected via SPI, thanks to a hardware switch
which is programmable through the microcontroller. The four microphones are instead
connected to four different GPIOs.
