X-STM32MP-GNSS1 is an STM32 MPU expansion board with Teseo-LIV3FL module for Low Power Multi-Constellation GNSS positioning using various sensors for data accuracy. The X-STM32MP-GNSS1 interfaces with the STM32MP microprocessor via 40 pin GPIO connector pins using I2C, UART, GPIO connections for various components. It is compatible with both STM32MP157F-DK2 and Raspberry Pi’s GPIO connector layout. Teseo-LIV3FL is a global navigation satellite system (GNSS) standalone Low power module. It embeds the Teseo III positioning receiver IC working simultaneously on multiple constellations (GPS/Galileo/Glonass/BeiDou/QZSS). iNEMO inertial module ISM330DHCX has a full-scale acceleration range of ±2/±4/±8/±16 g and a wide angular rate range of ±125/±250/±500/±1000/±2000/±4000 dps. QVAR Embedded ILPS22QS functions as a digital output barometer, supporting dual full-scale up to 4060 hPa. The IIS2MDC is a high-accuracy, ultra-low-power 3-axis digital magnetic sensor having dynamic range up to ±50 gauss. The GNSS antenna is included in the package.