Hardware plan: deepen + design bipolar ±10V CV from the start
- Power budget (BLE-only, never WiFi TX) with concrete mA table.
- Bipolar CV section: ±12V rails (boost + inverter), DAC 0-4.096V -> ±10V
via difference amp with 2.048V mid-ref, per-channel gain/offset trim,
OPA4192 on ±12V, bidirectional TVS. Function+polarity decides mapping
(pitch stays 0..+10V standard on a bipolar output).
- Concrete BOM table (part numbers, packages, alternates).
- Risks updated for bipolar calibration + ±12V rail noise.
- Build order updated.
nils
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