Project Start Guidance


"CR1632 Tracker Redesign" completed.

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The audited defects have been corrected. I’m verifying the revised pulse capacitor, reverse-current protection, RF2 termination, battery ADC path, and ERC state before deciding whether the 25 mm placement can proceed.
"CR1632 Tracker Redesign" completed.

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The final schematic cleanup is complete. I’m confirming that only the real reservoir remains and then I’ll close this phase with the mechanical go/no-go for the 25 mm prototype.

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The CR1632/QFN schematic redesign is complete and ERC-clean at 68 components / 43 nets. It now uses the DW3210 QFN, TPS63900 2.7 V rail, MAX40200 reverse-current protection, switched battery monitoring, and correct RF2 termination; all charging circuitry is removed.
Blocking issue
  • The only credible reservoir found is a 3.5 F, 20 × 10 × 22 mm supercapacitor. It supports the coin cell electrically but cannot fit inside the 25 mm golf-ball assembly.
  • A CR1632 alone cannot reliably supply the DW3210’s UWB current peaks.
Next decision
  • Use the CR1632 and external supercapacitor for a bench-only electronics prototype, or
  • Return to a compact high-rate rechargeable/custom cell for the in-ball prototype.
I have paused placement rather than creating a mechanically impossible board. Please choose the bench-only CR1632 version or the in-ball high-rate-cell version.

Compact UWB Golf Ball Tracker

Compact UWB Golf Ball Tracker thumbnail