Board Overview
The Omi uses three interconnected PCBs:| Board | Function | Latest Version |
|---|---|---|
| Mainboard | nRF5340 SoC, nRF7002 Wi-Fi, microphones, IMU, flash, battery management | v1.2 |
| Charger Board | Magnetic dock with pogo pins, USB-C power, ESD protection | v1.0 |
| FPC | Flexible cable connecting mainboard to charging contacts | v1.0 |
Mainboard
The main PCB carries all active electronics. Key ICs:- nRF5340-CLAA — Dual-core Bluetooth LE SoC (application + network cores)
- nRF7002-CEAA-R7 — Wi-Fi 6 companion IC
- CSNP4GCR01-DPW — 8GB NAND Flash
- LSM6DS3TR-C — 6-axis IMU
- BQ25101YFPR — Li-Ion/Li-Poly battery charger
- TPS628438YKAR — DC-DC buck converter
- 2x MMICT5838-00-012 — TDK T5838 PDM microphones
schematic.pdf— Full schematicgerbers/— Gerber + drill files for PCB fabricationaltium/— Altium Designer source project
Charger Board
Magnetic charging dock with USB-C input. Key ICs:- TPS25200DRVR — eFuse power manager (6.5V, 2.8A)
- TPD1E10B06DPYR — ESD protection diode
FPC (Flexible PCB)
Connects the mainboard to the charging contact ring via a board-to-board connector. Key Components:- ST-BTB-K3570606M — BTB male connector (6+4P)
- Charging contact ring (D9.9mm)
How to Order PCBs
Upload the Gerber ZIP to any PCB manufacturer. Recommended specs:| Parameter | Value |
|---|---|
| Layers | Check schematic (multi-layer) |
| Thickness | 1.0mm (standard) |
| Surface Finish | ENIG recommended |
| Min Trace/Space | 0.1mm / 0.1mm |
| Solder Mask | Both sides |
View Full BOM
See the complete Bill of Materials with all 88 components