Main¶
The Main board is the mini-PCIe-format card onto which the mosaic-X5 GNSS module is soldered. It is the system's "GNSS core": it has no external connectors and plugs into the carrier through the board-edge connector (the gold contacts). All the I/O (USB-C, microSD, LEDs, buttons, power) is on the Carrier mini board.
What is on the Main¶
- the soldered mosaic-X5 module (QR label, serial number,
HW Rev1marking) — full specifications in Mosaic X5; - the board-edge mini-PCIe connector (gold contacts) for plugging into the carrier;
- the module's RF antenna connector (type to be confirmed).
| Characteristic | Value |
|---|---|
| Form factor | mini-PCIe card (plugs into the carrier) |
| GNSS module | mosaic-X5 soldered (31 × 31 mm) |
| Hardware revision | HW Rev1 (silkscreened) |
| Serial number | on the module label |
| Coupling | board-edge mini-PCIe connector (see mini-PCIe interface) |
Note
The card's mechanical dimensions must be taken from the dimensioned drawing. (to be confirmed on the production revision)
Module interfaces (towards the carrier)¶
The mosaic-X5 exposes its interfaces on the mini-PCIe connector pins; it is the carrier that routes them to the outside:
| Interface | Use | Where it reaches on the carrier |
|---|---|---|
| USB | host (configuration, data, streaming) | USB-C connector |
| UART (TTL 3.3 V) | NMEA / SBF / RTCM corrections | (internal / future carriers) |
| SD | raw-data logging | microSD slot |
| PPS / EVENT | synchronisation, time-tagging | (internal) |
| LED | receiver status | the carrier LEDs |
The full module specifications (constellations, frequencies, accuracy, power) are on the Mosaic X5 page.
3D model¶
Interactive 3D model of the Main board (with mosaic-X5 module). It rotates automatically; drag to rotate, scroll to zoom, right-click to pan.
drag rotate · scroll zoom · right-click pan