CM5 Custom Embedded Device Board
- Platform
- Raspberry Pi CM5
- PMIC
- BQ25975 (power-path charging)
- Protection
- Hot-swap & thermal
- Extras
- eSIM, RFID, Li-ion 1S
- Custom CM5 carrier with battery management, power-path charging via BQ25975, and hot-swap protection for mobile and field-deployed test rigs
- Multi-layer PCB layout with schematic capture, component selection, and DFM review
- Firmware handles power state transitions, battery level monitoring, and safe shutdown sequences
- eSIM and RFID modules extend connectivity for field deployments requiring SIM-based networking or RFID asset tracking without external adapters
Outcome Reliable battery-backed CM5 deployments in mobile test rigs.
Custom carrier board for the Raspberry Pi Compute Module 5, designed for mobile and field-deployed embedded applications that need reliable battery-backed operation.
The BQ25975 PMIC handles power-path charging: the system runs from input power while simultaneously charging the battery, with seamless switchover on input loss. Hot-swap and thermal protection circuits handle varying field conditions.
eSIM and RFID modules extend connectivity beyond standard Pi networking for field deployments that need SIM-based connectivity or RFID asset tracking without external adapters. Firmware handles power state transitions, safe shutdown sequencing, and battery health telemetry.