label_printer.py renders a DK-11221 23x23 mm label (QR code linking
to the lamp's buildfor.life page plus the ID) and sends it over the
network backend (brother-ql-next). The station prints two after each
successful measurement, one for the box and one for the lamp; printer
failures never lose a run, and any lamp can be reprinted with
uv run label_printer.py <ID>. Printer address via HPCS_LABEL_PRINTER
or --printer.
Every run opens with the freshly allocated L#### and then asks for
the EAN, which Enter skips. Typing an existing ID re-measures that
lamp with all identification and rated values pre-filled, which also
rewrites old bundles in the current metrics format. Unused IDs are
never burned since numbering derives from written bundles.
The website derives its lamp list from the comparison-data bundles,
so measuring and pushing is the whole publish flow. Dead web-repo
constant removed with it.
Interactive loop around lamp_export.py: scan an EAN (checksum
validated, optional for barcode-less lamps), resolve it against
previous lamps / a local cache / upcitemdb.com, confirm
identification, record the packaging's advertised values, measure
per the published procedure, and commit the bundle to the
comparison-data repo with a device page stub for the web repo.
Every lamp is keyed by an internal ID (L0001, L0002, ...) so one EAN
can cover several versions (daylight/warm white variants) and
unbranded lamps work. lamp_export.py passes optional ean, variant,
and rated (advertised values) fields through into metrics.json.
lamp_export.py writes the per-lamp bundle consumed by the buildfor.life
comparison pages: spd.csv (full 380-1050 nm spectrum), tm30.csv (ANSI/IES
TM-30-18 hue-bin data for the color vector graphic), and metrics.json
(photometric, colorimetric, CRI R1-R15, TM-30 Rf/Rg, electrical, supply
settings).
- tm30.py computes TM-30-18 via colour-science from the measured spectrum,
resampled to a uniform 1 nm grid; validated against CIE FL2 (Rf 70, Rg 86)
- Optional built-in PSU control (--mode/--voltage/--frequency/--current),
switched on for the measurement and off afterwards, with --settle warm-up
and --interval between readings
- Readings use the vendor single-shot cycle verified from USB captures:
test config -> trigger (8C 0E 02) -> poll -> read -> reset per reading
- Also supports --passive and --parse <pcap> sources
grabowski
