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Pcb rev4#46

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tcsullivan merged 14 commits into
mainfrom
pcb-rev4
Jun 12, 2026
Merged

Pcb rev4#46
tcsullivan merged 14 commits into
mainfrom
pcb-rev4

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@tcsullivan

@tcsullivan tcsullivan commented Jun 10, 2026

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Add rev4 hardware design files and update source code:

  • Update SPLMeter for new microphone specs. IM64D130A frequency response is flat enough to only use A-weighting filter.
  • Use bulk measurement upload endpoint.
  • Implement multi-threading to continuously sample the microphone.
  • Fixes for updated access point / web server library.
  • Maintain older hardware support: port to latest I2S driver and block rev1/2/3 from applying OTAs that are v0.4 or later.

@tcsullivan tcsullivan merged commit b499f8a into main Jun 12, 2026
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