Adds Purchase column to bom.csv with verified sourcing links and a
companion BOM.md with grouped tables, combo-kit recommendations, and
critical pre-order notes.
Flagged during research:
- U1 package description was wrong (3.5x3.5mm); TPS61088 RHL is
actually VQFN-20 4.5x3.5mm. KiCad footprint is correct, only the
BOM description was off.
- PCB silkscreen shows TPS61088QRHLRQ1 (auto Q1) but the non-Q1
TPS61088RHLR is a drop-in substitute with the same RHL pinout and
is ~5x cheaper at LCSC.
- Pinout verified: schematic pins 1/3/4/5/6/7/8/9/11/12/15 match the
TI datasheet RHL pinout.
Combo kits collapse R1-R5 (E96 sample book), C6/C8/C9 (0805 ceramic
kit), and C4/C5/C10/C11 (22uF 1206 50-pack) into single orders.
Constraint: ESP32 module excluded per user — sourced separately.
Constraint: L1 must handle >=10A; no-name AliExpress inductors avoided.
Directive: If swapping L1 to TDK SPM10065 from Bourns SRP1265, verify
KiCad footprint matches before ordering (10.5x10mm vs 12.6x12.6mm).
Confidence: high
Scope-risk: narrow
Not-tested: actual delivery/fitment of recommended AliExpress parts
Snapshot the post-boost-integration design outputs: BOM CSV, schematic
PDF and SVG exports, and the ERC report against the current schematic.
Confidence: high
Scope-risk: narrow
Directive: These are regenerated outputs - refresh them when the schematic changes
0xWheatyz
