Prototype state
Main PCB online
Designed
Assembled
Tested
Commercial
Core boardWorking
Puck PCBsPresent
Puck validationNext
Hardware
Real boards, clear next steps.
OpenPulse is a working early-stage hardware platform, not a finished commercial product. The main PCB is assembled and tested; the sensor-puck system is the next validation frontier.
01 Titanium case shell
02 Main PCB and interface
03 Replaceable sensor pucks
Layer view
Case / PCB / puck stackPublic architecture view without overexposing CAD details.
Validation gates
Assembly
Electrical bring-up
Mechanical contact
Signal quality
Architecture
Two body-facing slots. One environment-facing slot.
The current architecture moved beyond the older three-skin-puck idea. It now separates body signals and environment context.
Main PCB
Outward slot
Skin slot A
Skin slot B
CoreSeeed XIAO nRF52840 Sense based board.
Body sideTwo lower positions for future biosignal puck directions.
Outer sideOne top-facing position for environment or context sensing.
System map
The wearable is a stack, not one sealed sensor block.
The public hardware story focuses on the architecture: reusable core electronics, separated sensing positions and a puck interface that still needs honest validation.
Reusable basePower, compute, wireless, module interface
Skin-side slotsTwo body-facing puck positions for future biosignal modules
Outward slotOne environment-facing position for context sensing directions
Software pathFirmware, data export and partner integration layer
Validation roadmap
What has to be proven before product claims.
01Reflow and assemblyPopulate small round PCBs reliably.
02Electrical bring-upCheck pins, pads, pullups, voltages and puck connection.
03Mechanical fitConfirm seating, pressure and repeatable replacement.
04Signal qualityGenerate useful pilot-grade data before making claims.
OpenPulse can communicate strong architecture, modularity and data ownership. It should not claim validated sensor quality, medical accuracy or a finished safety product yet.