4 commits

Author	SHA1	Message	Date
BarnacleBoy	5fde053bc3	update parts and power system docs with Banggood order details (board, cells, holders, amp, case, fan)	2026-06-03 05:28:49 +00:00
BarnacleBoy	384917e12e	power system research: IP5389 series config, 3S2P cells, power budget, audio amp, display controller power	2026-06-01 00:42:39 +00:00
BarnacleBoy	3c11190822	update all docs: Orange Pi 3B 8GB purchased (89) ... - docs/sbc-selection.md: full rewrite for OPi 3B specs (RK3566, 8GB, 256GB eMMC, built-in WiFi) - README.md: SBC description, checklist, components table, quick ref, cost estimate - docs/parts-list.md: SBC marked purchased, eMMC/controller/WiFi changes - docs/design-decisions.md: WiFi exclusion reason, native eDP, power input - docs/salvage-analysis.md: WiFi card not needed, cooling fan, summary tables - docs/storage-architecture.md: rewritten for 256GB eMMC primary boot - docs/usb-expansion.md: 2x USB3 native, port allocation, power budget - docs/port-layout.md: OPi3B port differences (eDP, power-only USB-C, built-in WiFi) - docs/power-system.md: lower power draw context	2026-05-24 06:51:26 +00:00
BarnacleBoy	db353ad2d1	add power system: IP5389 board + 18650 array decision ... - IP5389 power bank board selected (preliminary) - All-in-one: charging, BMS, USB-C PD output - Rejected K501U battery (integrated BMS not reusable) - Documented alternatives considered (TP5100+2S BMS+buck, UPS HAT) - Updated parts list with power system BOM - Cost estimate now 06-230 (was 70-190) - Added power-system.md, updated design-decisions.md	2026-05-12 06:02:51 +00:00