Schematic Design for Line Follower Robot

flux

0:00

Work done
  • Built the mirrored schematic for the two-channel line follower using BT1, U1, U3, Q1, Q2, Q3, Q4, DCF1, DCF2, U5, U2, and mirrored resistor sets R1 through R10.
  • Assigned manufacturing-ready footprints and added mirrored assembly/placement metadata so left and right channels stay consistent during PCB work.
  • Wired explicit nets for shared power and mirrored channels: VCC, GND, TOP_SENSE_NODE, BOT_SENSE_NODE, TOP_DRIVE_NODE, and the local drive/LED nets.
  • Configured a symmetric 90 mm x 55 mm rectangular 4-layer layout with base rules for trace width, keep out, and board inset.
  • Defined placement groups and created a symmetric placement strategy with BT1 centered, sensor blocks at the front edge, and DCF1 / DCF2 mirrored on opposite sides.
  • Annotated net intent so power and ground are prioritized for routing and sensor nets remain identifiable during final PCB refinement.
Success criteria review
  • ✅ The schematic now represents the mirrored two-channel robot circuit with named shared rails and mirrored left/right signal structure.
  • ✅ Footprints are assigned across the main production components, with mirrored orientation guidance added to component properties.
  • ✅ The PCB plan now includes a symmetric outline, centerline-based placement strategy, and routing/power-distribution intent.
  • ✅ Electrical connectivity checks are clean at the schematic level.
  • ❌ The PCB is not fully routed yet; DRC still reports airwires, so final copper routing remains the next step.
Next steps The project is ready for final PCB refinement: widen the motor-current paths, add ground fill, and complete routing to remove the remaining airwires. If you want, I can continue by setting net-specific layout rules for motor vs sensor traces and preparing the board for Auto-Layout review.
8 days
tcianoastudillo15

tcianoastudillo15

perfeccionalo
5 days

flux

0:58

Thinking deeply about your request.

Planning execution steps.

Drafting a manufacturing audit plan.

Working on your request.

Quieres perfeccionar el proyecto actual del robot seguidor de línea simétrico.
  • Ya dejé armado el plan para:
    1. depurar el esquemático espejo,
    2. validar footprints y simetría física,
    3. optimizar placement,
    4. endurecer reglas de PCB,
    5. dejarlo listo para ruteo y manufactura.
Haz clic en Start en la barra del plan para ejecutarlo.
Añade ESD al plan
Refuerza revisión de simetría
Endurece reglas PCB
5 days
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R2
Resistance
560 Ω
R4
Resistance
1kΩ
R8
Resistance
1kΩ
R9
Resistance
20kΩ
R3
Resistance
20kΩ
R7
Resistance
1kΩ
R10
Resistance
560 Ω
GND
R5
Resistance
1kΩ
R6
Resistance
1kΩ
GND
GND
R1
Resistance
1kΩ
R7 P2 - U5 A
Q3 C - R4 P2
R1 P2 - U2 A
Q2 C - R6 P2
R8 P2 - Q3 B
R5 P2 - Q2 B
  • Generic Capacitor
    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
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    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
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    15.6k
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    87437-0243
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    CL21B106KOQNNNE
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    8.5k
  • 13pF 0402 capacitor
    13pF 0402 capacitor
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  • 1.2pF 0402 capacitor
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Symmetric Line Follower Robot thumbnail
Two-channel symmetric line follower robot, dual CNY70 sensor front-end with mirrored 2N2222A motor drive stages and central 8V battery input

Properties

Pricing & Availability

Distributor

Qty 1

Arrow

$2.24–$14.68

Digi-Key

$2.73–$19.40

LCSC

$3.32–$7.44

Mouser

$4.34–$15.18

TME

$0.64–$3.44

Verical

$1.53–$34.85

Assets

Assets are files uploaded to this project which can be used in various ways.

Controls