MTi 1-series User Manual
Xsens MTi User Manual Repository
Hardware Integration Manual
Copyright © 2021 Xsens
Page 87
Connections (UART interface full-duplex)
GNSS receiver and barometer interface
The MTi-7/8 variants of the MTi 1- series module family support external inputs from a GNSS
receiver like the u-blox MAX-M8. For the GNSS receiver, the UART communication and
PPS/TIMEPULSE pins of the receiver need to be connected to the AUX_TX, AUX_RX and
SYNC_PPS pins of the MTi-7/8 module. See figure below for schematic details and table
below for interface specifications.
GNSS receiver interface specifications
Interface
Typ
Max
Units
UART
Baud
Rates
115.2
2000
kbps
Besides the GNSS receiver, the MTi-7/8 also supports an external barometer (the BMP280 -
other models can be supported on request). For the barometer, the SPI pins need to be
connected to the AUX_nCS, AUX_MOSI, AUX_MISO and AUX_SCK pins of the MTi-7/8 module.
See the figure below for schematic details.
