Solar Bee Monitor Schematic

Focused recovery status: Regulator recovered; routing blocked by auto-route job state Completed
  • Confirmed the original TPS56528DDA footprint was malformed, not a valid segmented PowerPAD:
    • TI specifies one exposed GND PowerPAD.
    • Flux footprint contained two coincident, unnetted mount pads plus a separate undersized GND pad.
    • Project-local overrides could not disable the nested duplicate pads.
  • Filed an internal part-quality report for the TPS56528DDA Flux library part.
  • Replaced U_5V with verified Texas Instruments TPS56637RPAR:
    • 4.5–28 V input
    • 5 V adjustable output
    • 6 A continuous rating
    • 10-pin 3 × 3 mm VQFN-HR package
  • Completed inspect → replace → rewire → verify → re-place workflow.
  • Updated the support network to TI’s 5 V recommendations:
    • L_5V: 3.3 µH, reference-class 10.5 A peak / 9.7 A RMS
    • Input: 2 × 22 µF plus 100 nF VIN–PGND
    • Output: 2 × 22 µF
    • Bootstrap: 100 nF BOOT–SW
    • Feedback: 73.2 kΩ / 10.0 kΩ
    • PG pull-up: 100 kΩ
    • MODE tied to GND for Eco-mode
    • AGND and PGND connected to GND
    • NC explicitly marked no-connect
  • Fresh ERC returned zero concrete errors.
  • Re-placed only the local 5 V stage and made one small J_BAT shift to clear a mounting hole.
  • Updated Project Specification, Bring-Up Plan, Safety Analysis and FMEA.
Final project state

Table


ItemResult
Final regulatorTPS56637RPAR
Regulator actionReplaced, not overridden
Components75
Nets47
Placed components75 / 75
Board100 × 100 mm, 2 mm corners
StackupStandard 4-layer
Component fill16.6%
NodeMCU row spacing25.4 mm exact
Header positionsX = −12.7 mm and +12.7 mm; Y = 20 mm
Header orientationParallel, 0°, matching pin-1 direction
Airwires124
Routed completionNot completed
Pre-route assessment
The replacement footprint’s four overlapping VIN copper terminals are an intentional HotRod-QFN construction. They are all on BAT_PROTECTED_IF; the checker states they will be treated as one pin. This is not the original malformed thermal-pad defect.
No fresh errors were reported for:
  • Missing footprints
  • Component body overlap
  • Components outside board
  • Invalid layers
  • Overlapping copper
  • Dangling traces
Routing blocker
A new auto-route job was started, but the Flux job remained cycling through generating, stopped, resuming, and restarted states without persisting routes. The job could not be cleanly completed or restarted within this pass. I did not force routing or manually attempt 124 connections.
Fresh DRC counts
  • Errors: 124
    • Airwires: 124
  • Warnings: 1
    • Component override on U_5V:VIN_1; this originates from the replacement library footprint’s HotRod-QFN copper construction.
  • Other requested manufacturing-critical categories: no findings returned.
Antenna and mechanical status
  • NodeMCU header geometry remains exact and unchanged.
  • USB and antenna ends remain identified.
  • The antenna keepout marking/zone remains present, but all-layer copper exclusion cannot be conclusively verified until routing and pours complete.
  • Four 3.2 mm NPTH mounting holes remain present.
  • Connector edge placement and safety markings were preserved.
Manufacturing readiness
Not manufacturing-ready.
The regulator defect is resolved and the schematic is electrically restored, but the board still has 124 airwires because the auto-route service did not complete. Power pours, GND stitching, all-layer antenna exclusion, current-density verification and final silkscreen/copper review therefore remain blocked.
please do it fast asap
The 100 × 100 mm, 4-layer PCB is fully placed with 75 components, four mounting holes, exact 25.4 mm NodeMCU header spacing, connector labels, and antenna keepout. The defective TPS56528 footprint was reported and replaced with a verified TPS56637RPAR 6 A buck; ERC is clean.
Blocked: the routing service failed to persist routes, leaving 124 airwires, so the PCB is not manufacturing-ready. Routing, power pours, antenna copper-exclusion verification, and final DRC must be retried after the routing service recovers.
Retry routing later
Explain blocker
Review placement
Check manufacturability
Export docs only
J_BAT
J_INMP441
J_SOLAR
J_MCU_L
J_ADXL345
J_GATE
J_HX711
J_SHT31
U_RS485
J_MPU6050
U_CAM_SW
J_OPT3001
U_3V3
J_SCD40
U_GATE_SW
J_CAM
U_MUX


  • Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
  • Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
  • Ground
    A common return path for electric current. Commonly known as ground.
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • RMCF0805JT47K0
    General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliant
  • 875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
  • 1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
Bee Monitor Central Controller – Board 1 thumbnail
Beginner-prototype solar bee monitor central controller using a plug-in 38-pin ESP32 NodeMCU-32, breakout sensor interfaces, switched camera and gate power, RS-485, monitored rails, and isolated safety-critical 2S charging/protection interfaces pending fully verified implementations.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$5.86–$10.06

Digi-Key

$1.74

HQonline

$3.70–$3.95

LCSC

$9.49–$11.33

Mouser

$14.98–$89.59

TME

$4.03

Verical

$7.11–$11.65

Controls