# Attached component contract

## Identity and sources

- Manufacturer:
- Exact component / revision:
- Breakout or module / revision:
- Datasheet URL and revision:
- Module schematic URL and revision:
- Maintained framework driver and version:
- Access date:

## Electrical contract

- Supply range:
- Logic levels / absolute maximum:
- Typical, peak, startup, stall, or inrush current:
- Required decoupling:
- Pull-ups / pull-downs / termination:
- Driver, level shifter, transceiver, flyback, isolation, or current limit:
- Safe state during ESP32 reset, bootloader, crash, and update:

## Protocol contract

- Interface and mode:
- Pins / address / chip-select straps:
- Clock or baud range:
- Data order, word size, parity, or framing:
- Reset and startup timing:
- Identity / revision register or self-test:
- Readiness, interrupt, and clear sequence:
- Error, CRC, timeout, and retry behavior:

## Measurement or actuation contract

- Range and units:
- Resolution, accuracy, repeatability, and drift:
- Transfer function:
- Calibration points / source:
- Warm-up / settling / conversion time:
- Mechanical, thermal, environmental, or duty-cycle limits:
- Actuator feedback, timeout, interlock, and fault behavior:

## Bring-up evidence

- [ ] Supply measured at component
- [ ] Idle signal levels checked
- [ ] Bus scan / loopback / waveform checked
- [ ] Identity or self-test passed
- [ ] Raw data or unloaded output captured
- [ ] Conversion / calibration checked against reference
- [ ] Reset and power-cycle behavior checked
- [ ] Worst-case load / environment checked

## Unsupported or unresolved claims

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