v0.1.0

dtollib 0.1.0 — first public release

dtollib is an experiment-facing, async-first acquisition layer for Data Translation DT-Open Layers hardware (DT9805 / DT9806), wrapping the DataAcq SDK via ctypes. Built on AnyIO, typed end-to-end, and bench-verified against SDK V7.0.0.7.

⚠️ Alpha. Windows-only (Win32 message window + ctypes.WinDLL), Python ≥ 3.13. APIs may still shift before 1.0.

Highlights

• Continuous analog input — record() delivers hardware-clocked blocks through a Win32 message-pump callback bridge, with ErrorPolicy over/underrun handling and durable sinks.
• Single-value output — write() for analog (AO) and digital (DO/port-shaped DIO) with a per-sample §18 safety gate (device-range, safe-band, and requires_confirm checks).
• Counter / timer — edge counting, frequency, edge-to-edge, plus pulse-train / one-shot outputs via read_events() / measure_frequency().
• Simultaneous start — DtolManager.start_synchronized() runs the SDK SS-list sequence (single-board, single-backend).
• Thermocouples in software — NIST ITS-90 forward/inverse polynomials (Type K/J) with CJC compensation; the DT9805/06 don't linearize in firmware.
• Five CLIs — dtol-discover, dtol-diag, dtol-capture, dtol-read, dtol-info.
• Cross-platform fake backend — make_fake_dt9805() / make_fake_dt9806() let the full software path be tested with no hardware or SDK present.

Hardware notes

• DT9805/06 A/D is fixed ±10 V, gain-selected (no per-channel range).
• DT9806 D/A is single-value only — no continuous waveform output. play() ships and is fake-tested, but raises DtolCapabilityError on current boards; it's ready for a future streaming-DAC board.
• Quadrature / tachometer / MEASURE counter modes raise DtolCapabilityError (unsupported by these boards).

Install

pip install dtollib

Optional extras: dtollib[postgres], dtollib[parquet].

Full changelog: see CHANGELOG.md.