Analog Bicycle Light Schematic
Worked for 10 sec
The editable layer value is
Bottom for standalone artwork on this stackup, so I’m applying that exact layer now.Worked for 1 min 34 sec
The artwork is now on the valid bottom-side layer. I’m visually checking the result and running DRC.
Worked for 11 sec
The layout checks are clean; I’m explicitly setting the PCB silkscreen color to white so the new bottom artwork renders as intended in 3D.
Worked for 57 sec
Updated only the PCB bottom-side artwork: added the bicycle/light graphic, divider lines, five feature descriptions with line icons, and centered “Flux” branding. Silkscreen color is set to white.
Remaining issues:
- None reported by DRC.
- Schematic, electrical connections, component placement, and routing were unchanged.
Review and export
Final manufacturing review
Verify BOM
Export fabrication files
Create assembly notes
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Final Component Replacement Table and Validation Report
Project: Simple Analog Smart Bike Light / Automatic Bike Light
Scope
Applied requested sequential reference designators, manufacturer names, MPNs, LCSC/JLCPCB C-numbers where supported by component properties, package/value metadata, PCB footprint/package updates for configurable generic footprints, PCB placement update, and rerouting after placement changes. Existing schematic topology and net connections were preserved.
Flux currently exposes
LCSC Part Number as a standard component property. A separate standard JLCPCB Part Number property was not available in the property schema, so the requested C-number was entered in LCSC Part Number for each physical component.Final component table
Table
| Ref | Former ref | Value / Function | Manufacturer | MPN | LCSC/JLCPCB C# | Package / Footprint | Status |
|---|---|---|---|---|---|---|---|
| C1 | C_BAT | 4.7 uF, 16 V, X5R, ±10% | Samsung Electro-Mechanics | CL10A475KO8NNNC | C19666 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic capacitor. |
| C2 | C_CHG_IN | 4.7 uF, 16 V, X5R, ±10% | Samsung Electro-Mechanics | CL10A475KO8NNNC | C19666 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic capacitor. |
| C3 | C_CHG_DEC | 100 nF, 50 V, X7R, ±10% | Samsung Electro-Mechanics | CL10B104KB8NNNC | C1591 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C4 | C_DARK_DEC | 100 nF, 50 V, X7R, ±10% | Samsung Electro-Mechanics | CL10B104KB8NNNC | C1591 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C5 | C_LED_DEC | 100 nF, 50 V, X7R, ±10% | Samsung Electro-Mechanics | CL10B104KB8NNNC | C1591 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C6 | C_TIMER_DEC | 100 nF, 50 V, X7R, ±10% | Samsung Electro-Mechanics | CL10B104KB8NNNC | C1591 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C7 | C_COMP | 220 nF, 25 V, X7R, ±10% | Samsung Electro-Mechanics | CL10B224KA8NNNC | C21120 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic capacitor. |
| C8 | C_CTRL | 10 nF, 50 V, X7R, ±10% | YAGEO | CC0603KRX7R9BB103 | C100042 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C9 | C_LED_IN | 10 uF, 10 V, X5R, ±10% | Samsung Electro-Mechanics | CL10A106KP8NNNC | C19702 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C10 | C_USB_IN | 10 uF, 10 V, X5R, ±10% | Samsung Electro-Mechanics | CL10A106KP8NNNC | C19702 | 0603 | Properties applied and footprint changed from previous 0805 to 0603; exact library part found, but not component-swapped to avoid breaking nets. |
| C11 | C_LED_OUT | 1 uF, 50 V, X5R, ±10% | Samsung Electro-Mechanics | CL10A105KB8NNNC | C15849 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| C12 | C_TIME | 47 uF, 10 V, X5R, ±10% | CCTC | TCC1206X5R476K100HT | C5449028 | 1206 | Properties applied and generic footprint changed to 1206; exact Flux library part not available. |
| D1 | D_AND1 | 20 V, 500 mA Schottky | onsemi | MBR0520LT1G | C23848 | SOD-123 | Existing exact/compatible component retained; properties updated. |
| D2 | D_AND2 | 20 V, 500 mA Schottky | onsemi | MBR0520LT1G | C23848 | SOD-123 | Existing exact/compatible component retained; properties updated. |
| D3 | D_BOOST | 40 V, 3 A Schottky | onsemi | MBRA340T3G | C26178 | SMA / DO-214AC | Existing exact/compatible component retained; properties updated. |
| D4 | D_CHG | Red status LED | Hubei KENTO | KT-0603R | C2286 | 0603 LED | Existing exact/compatible component retained; properties updated. |
| J1 | J_BAT | 2-pin battery connector, 2.0 mm | JST | B2B-PH-K-S(LF)(SN) | C131337 | JST PH through-hole 2-pin | Existing connector retained; properties updated. |
| J2 | J_LED | 2-pin LED connector, 2.0 mm | JST | B2B-PH-K-S(LF)(SN) | C131337 | JST PH through-hole 2-pin | Existing connector retained; properties updated. |
| J3 | J_USB | USB Type-C power connector | Global Connector Technology | USB4215-03-A | C37616412 | USB4215-03-A footprint | Existing exact/compatible component retained; properties updated. |
| L1 | L_BOOST | 10 uH power inductor, 2 A / 2.8 A sat | APV | APH303015C100MP03 | C42455385 | SMD 3 x 3 mm | Properties applied; exact Flux library part not available, so underlying library component still shows SRN3012BTA-100M. |
| R1 | R_CC1 | 5.1 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-075K1L | C105580 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| R2 | R_CC2 | 5.1 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-075K1L | C105580 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| R3 | R_CHG_LED | 1 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-071KL | C22548 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| R4 | R_DARK_PU | 100 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-07100KL | C14675 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic resistor. |
| R5 | R_LDR_BIAS | 100 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-07100KL | C14675 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic resistor. |
| R6 | R_LED_EN_PU | 100 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-07100KL | C14675 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic resistor. |
| R7 | R_MOTION_PU | 100 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-07100KL | C14675 | 0603 | Properties applied; exact Flux library part not available, so underlying component remains generic resistor. |
| R8 | R_LDR | LDR, 8–20 kΩ light, ~1 MΩ dark | JCHL | GL5528(10-20) | C10081 | TH, 3.4 mm pitch | Existing LDR retained; exact MPN found in library but with different C-number, so no part swap performed. |
| R9 | R_PROG | 2 kΩ, ±1%, 100 mW | YAGEO | RC0603FR-072KL | C105576 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| R10 | R_SENSE | 0.68 Ω, ±1%, 250 mW | YAGEO | PT1206FR-070R68L | C858769 | 1206 | Properties applied and generic footprint changed to 1206; exact Flux library part not available. |
| R11 | R_TIME | 1 MΩ, ±1%, 100 mW | YAGEO | RC0603FR-071ML | C105578 | 0603 | Properties applied; exact Flux library part found, but not component-swapped to avoid breaking nets. |
| RV1 | RV_DARK_3P | 100 kΩ trimmer potentiometer | Bourns | 3362P-1-104LF | C81266 | TH 3-pin, 7 x 6.6 mm | Existing exact/compatible component retained; properties updated. |
| SW1 | S_MOTION | Vibration / motion switch | SHOU HAN | SW-18010P | C2681585 | Through-hole | Existing exact/compatible component retained; properties updated. |
| U1 | U_CHG | Single-cell Li-ion/Li-Po charger | Microchip | MCP73831T-2DCI/OT | C625597 | SOT-23-5 | Existing exact/compatible component retained; properties updated. |
| U2 | U_DARK | Dual voltage comparator | Texas Instruments | LM393DR | C67470 | SOIC-8 | Properties applied; exact Flux library part not available, so underlying part still shows LM393DRG4. |
| U3 | U_LED | Constant-current boost LED driver | Texas Instruments | TPS61165DBVT | C702282 | SOT-23-6 | Existing exact/compatible component retained; properties updated. |
| U4 | U_TIMER | CMOS 555 timer | Texas Instruments | TLC555CDR | C6986 | SOIC-8 | Existing exact/compatible component retained; properties updated. |
Component/library replacement limitations
The following exact listed parts could not be replaced with true Flux library components because the exact MPN/C-number was not found in the Flux library, and the instruction forbids automatic substitution:
- CL10A475KO8NNNC / C19666
- CL10B224KA8NNNC / C21120
- TCC1206X5R476K100HT / C5449028
- APH303015C100MP03 / C42455385
- RC0603FR-07100KL / C14675
- PT1206FR-070R68L / C858769
- LM393DR / C67470
Also noted: GL5528(10-20) exact MPN was found, but the available Flux library part had a different LCSC C-number than the requested C10081, so no part swap was made.
Verification summary
- Physical BOM component count: 37.
- Sequential designators applied: C1–C12, D1–D4, J1–J3, L1, R1–R11, RV1, SW1, U1–U4.
- PCB footprints present: 37 footprints for 37 physical BOM components.
- PCB stackup: 2 copper layers.
- PCB routing: autorouter completed after placement/package updates.
- ERC: no open ERC issues reported in the latest checks.
- DRC: 3 airwire errors remain. They reference GND fill/stitch/pad connectivity and generic pad labels in the review output. No open overlapping copper or dangling trace warnings were reported after the final routing pass.
Remaining issues
- DRC airwire: GND fill/stitch connectivity item
05d59f45. - DRC airwire: GND fill/stitch connectivity item
05d59f45to a capacitor P2 pad. - DRC airwire:
P2-labeled GND pad connectivity between two component pads.
These likely need manual PCB cleanup of the GND fill/stitching and short GND connections, because the targeted manual route attempt created an overlap and was removed before the final autorouting pass.
Scope
Final component table
Component/library replacement limitations
Verification summary
Remaining issues
