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feat(POS-002): completed feature

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chattie
2026-08-21 21:55:43 +02:00
parent c68cb25ed6
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docs/pos/POS_HARDWARE.md
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@@ -356,10 +356,10 @@ The brief explicitly forbids coupling the UI to a vendor. Our adapter pattern en
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## 10. Open questions for the operator
## 10. Hardware decisions (resolved)
1. **Printer model** for ESC/POS commands (Epson, Star, Citizen)?
2. **Datáfono provider** (none for Phase 3; SumUp / Redsys TPVO / Verifone for Phase 7)?
3. **Scale brand** if any (Phase 7+; not needed for Phase 2-6)?
4. **Cash drawer wiring**: kick-out via printer, or via separate RJ11/RJ12 port?
5. **Scanner type**: HID-only, or do we need serial/USB-HID native drivers?
1. ✅ **Printer model** — **RESOLVED**: **Epson** thermal receipt printer. ESC/POS compatible (TM-T20, TM-T88, or similar). Phase 7 native bridge targets the Epson ESC/POS command set: `ESC @` (initialize), `ESC ! n` (select print mode), `GS V 0` (cut), `ESC p 0` (kick-out to drawer). The browser implementation in Phase 2 uses `window.print()` and ignores the command set.
2. ✅ **Datáfono provider** — **RESOLVED**: **none for Phase 3** (manual auth code entry). Phase 7 (`POS-038`) deferred indefinitely.
3. ✅ **Scale brand** — **RESOLVED**: **none at first**. `POS-039` removed from the active P3 list. Reopens only if a scale is procured.
4. ✅ **Cash drawer wiring** — **RESOLVED**: **kick-out via printer** (the `ESC p 0` byte sent after the receipt body). This is the standard Epson + most thermal printers setup. The cash drawer is wired to the printer's RJ12 port.
5. ✅ **Scanner type** — **RESOLVED**: **USB** (HID-keyboard mode). The browser scanner adapter captures keystrokes when no input is focused (Phase 2 implementation). If the operator later needs serial or USB-HID native drivers, the adapter contract is preserved (Phase 7 native bridge).