Micronic rack reader v1b1#1009
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- Replace abstract trigger_rack_id_scan() with composite scan_rack_id(timeout, poll_interval) -> str - Capability layer delegates directly; backend chooses one-shot vs trigger+poll - Micronic backend now uses GET /rackid (one-shot) instead of POST /scantube (which is the single-tube scanner, not the rack-barcode reader) - Update chatterbox, tests, and docs to match
- ruff format on rack_reader.py, driver.py, micronic_tests.py - annotate response.read() result so mypy --check-untyped-defs is clean
rickwierenga
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May 6, 2026
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direct machine support is awesome
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can we use PLR io.Serial (thin wrapper around pyserial) rather than windows specific postscript?
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Micronic provides liquid storage solutions in the form of barcoded (normal and "Data Matrix") vials, racks for the vials, and "rack readers" that read all vials and the rack barcode. This PR adds two new capabilities (
rack_reading,barcode_scanning) and a Micronic IO Monitor driver/backend that implements them.While Micronic manufactures many physical readers, they all share the same IO Monitor HTTP server — see this PDF.
What's in this PR
RackReadercapability (rack_reading) withscan_rack,scan_rack_id, layout management, state pollingBarcodeScannercapability (barcode_scanning) for single-tube readsMicronicIOMonitorDriver— async HTTP transport with retry/backoffMicronicIOMonitorRackReadingBackendandMicronicIOMonitorBarcodeScannerBackendMicronicCodeReaderdevice exposing both capabilitiesdocs/user_guide/capabilities/rack-reading.md,docs/user_guide/micronic/index.mdIO Monitor REST coverage
/statedriver.get_iomonitor_state/layoutlistrack_reading.get_layouts/currentlayoutrack_reading.get_current_layout/set_current_layout/scanboxrack_reading.trigger_rack_scan/scan_rack/scanresultrack_reading.get_scan_result/rackidrack_reading.get_rack_id/scan_rack_id/scantubebarcode_scanning.scan/scanresultcsv/scanresult)/retry/rescan/retryThis video shows a scan of the rack barcode, and also a whole rack + rack barcode scan with an 8x12 vial layout through plr, with this code:
rack.mp4