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pns-acquisition

WIP - dual pcb arm band for multi channel semg acquisition

Clamshell design, 8 channels, modular design with DB and MB

Status:

Current plan is to finish design of DB, get boards manufactured, and test with nrf5340 devboard. After testing confirms functionality, design a pcb to stack with the DB to move SoC functionality, IMU, and power to the wrist. HW:

  • DB : schematic complete, layout underway
  • MB : schematic v1 complete, in need of revision

Hardware


Current Layout

image

DB PCB Progress (9-10-26) - see docs/db/daughterboard-adr.md for more details.

  • no ground pour currently - need different planes for analog and digital
  • need to confirm power rail is within spec (max current is 1.2A)
  • Need to better organize silkscreen lettering

Previous Versions

image

Firmware


Barebones layout gets finalized.

  • devboard: flashing + building works, no progress on actual functionality
  • final PCB: n/a

License

Firmware (fw/) — MIT
Hardware (hw/) — CERN-OHL-P v2
Documentation (docs/) — CC BY 4.0

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Multi-Channel sEMG signal acquisition platform

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