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Document MT1503P.A
© Xsens Technologies B.V.
Hardware Integration Manual MTi 1-series
3.3 GNSS receiver and barometer interface
The MTi-7 variant of the MTi 1- series module family supports external inputs from a GNSS receiver like
the uBlox 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 module.
See Figure 6 for schematic details and Table 7 for interface specifications.
Table 7: GNSS receiver interface specifications
Interface
Typ
Max
Units
UART
Baud Rates
115.2
2000
kbps
Besides the GNSS receiver, the MTi-7 also supports an external barometer like the BMP280. 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 module. See Figure 6 for schematic details.
Figure 6: Connections (GNSS interface)
