{ "revision": "R5", "schema_version": 1, "status": "Source-derived build instructions; electrical and physical bench validation pending", "coordinate_system": "PCB component-side view: local origin at KiCad (4,4), X right, Y down; all dimensions mm", "board": { "source": "source/power_button_fixed.kicad_pcb", "sha256": "c798650596b9dbe1a9a02e66f729ba90ca6bdb2413234685fccc961d18b5b981", "size_mm": [94, 60, 1.6], "kicad_origin_mm": [4, 4], "pad_data": "pcb-pads.json" }, "components": [ { "ref": "Db", "value": "1N4148", "kind": "axial_diode", "footprint": "D_DO-35_SOD27_P10.16mm_Horizontal", "center_mm": [67.08, 29.0], "rotation_deg": 0.0, "body_mm": [4.0, 2.0, 2.0], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "H1", "value": "M2.5", "kind": "mounting_hole", "footprint": "MountingHole_2.7mm", "center_mm": [4.0, 4.0], "rotation_deg": 0.0, "body_mm": [2.7, 2.7, 0], "installed": false, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "H2", "value": "M2.5", "kind": "mounting_hole", "footprint": "MountingHole_2.7mm", "center_mm": [90.0, 4.0], "rotation_deg": 0.0, "body_mm": [2.7, 2.7, 0], "installed": false, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "H3", "value": "M2.5", "kind": "mounting_hole", "footprint": "MountingHole_2.7mm", "center_mm": [4.0, 56.0], "rotation_deg": 0.0, "body_mm": [2.7, 2.7, 0], "installed": false, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "H4", "value": "M2.5", "kind": "mounting_hole", "footprint": "MountingHole_2.7mm", "center_mm": [90.0, 56.0], "rotation_deg": 0.0, "body_mm": [2.7, 2.7, 0], "installed": false, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "J1", "value": "OUT+/VSW/GND/LATCH/SENSE/GND", "kind": "header_1x6", "footprint": "PinHeader_1x06_P2.54mm_Vertical", "center_mm": [13.35, 18.0], "rotation_deg": 90.0, "body_mm": [15.24, 2.54, 8.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "QL", "value": "BS170", "kind": "TO92", "footprint": "TO-92_Inline", "center_mm": [61.27, 13.0], "rotation_deg": 0.0, "body_mm": [4.8, 3.7, 5.2], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "QP", "value": "SS8550", "kind": "TO92", "footprint": "TO-92_Inline", "center_mm": [29.27, 13.0], "rotation_deg": 0.0, "body_mm": [4.8, 3.7, 5.2], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rb", "value": "330", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [49.08, 13.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rbe", "value": "100k", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [33.08, 29.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rbtn", "value": "1k", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [83.08, 13.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rgl", "value": "100k", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [75.08, 36.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rs1", "value": "100k", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [65.08, 45.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "Rs2", "value": "100k", "kind": "axial_resistor", "footprint": "R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal", "center_mm": [83.08, 40.0], "rotation_deg": 0.0, "body_mm": [6.3, 2.5, 2.5], "installed": true, "dimensions_status": "footprint nominal; purchased part unmeasured" }, { "ref": "SW", "value": "PWR", "kind": "tact_switch_unpopulated", "footprint": "SW_PUSH_6mm", "center_mm": [37.25, 47.25], "rotation_deg": 0.0, "body_mm": [6, 6, 4.3], "installed": false, "dimensions_status": "footprint nominal; purchased part unmeasured" } ], "modules_file": "modules.json", "wiring_file": "interconnects.json", "remote_button": { "pcb_switch_populated": false, "reason": "SW footprint repeated pad numbers span different assigned nets; do not install its matching four-leg switch", "pcb_endpoints": [ ["SW", "1", "OUT+", 34, 45], ["SW", "1", "BTN_N", 40.5, 45] ], "connector": "Inline keyed 2-pin cable pair, not a PCB connector footprint", "contact_requirement": "Remote normally-open contacts: open released, continuity only while pressed", "nominal_switch_mm": [6, 6, 4.3], "daughterboard_mm": [12, 12, 1.6], "connector_envelope_mm": [10, 7, 6], "connector_dimensions_status": "routing allowance only; no purchased connector measured" }, "warnings": [ "Original hardware/power_button.kicad_pcb has real shorts; use this copied corrected source", "DRC verifies geometry and nets, not transistor pinout, SW contact internals, analog performance or load capacity", "Battery negative goes only to charger BAT-; system return goes only to protected OUT-", "PCB Rbtn is 1k, despite an older wiring document saying 10k", "100k/100k SENSE divider requires analog sensing, not a guaranteed digital HIGH", "Optional raw-battery telemetry divider is omitted to avoid injecting an unpowered MCU input", "SS8550 rail drop, 3.3V BS170 drive, clone regulator dropout and full-load temperatures need bench measurement" ], "driver_layout_file": "driver-layout.json" }