Diagrama para Robot Seguidor de Línea

Set Implementation Details to "Powered from 5V on VIN; batte..." on U1, Set Implementation Details to "Upper LiPo cell in 2S series ..." on U2, and 16 more changes

0:01

Set U1's Implementation Details to "Powered from 5V on VIN; battery 7.4V isolated from logic rail; GPIO D25 and D26 drive TIP120 motor switches; VP,VN,D34,D35,D3..."

Set U2's Implementation Details to "Upper LiPo cell in 2S series pack. Positive terminal feeds VBAT rail."

Set U3's Implementation Details to "Lower LiPo cell in 2S series pack. Negative terminal is system ground."

Set U4's Implementation Details to "5V step-down module from VBAT to 5V rail for ESP32 VIN and sensor supply."

Set Q1's Implementation Details to "Low-side switch for M1. Collector to motor negative, emitter to common ground, base driven from ESP32 D25 through R1."

Set Q2's Implementation Details to "Low-side switch for M2. Collector to motor negative, emitter to common ground, base driven from ESP32 D26 through R2."

Set M1's Implementation Details to "Motor positive connected to VBAT, negative switched by Q1 low-side transistor."

Set M2's Implementation Details to "Motor positive connected to VBAT, negative switched by Q2 low-side transistor."

Set R1's Implementation Details to "1k base resistor between ESP32 D25 and Q1 base."

Set R2's Implementation Details to "1k base resistor between ESP32 D26 and Q2 base."

Set U5's Implementation Details to "Fallback sensor channel 1 replacing one lane of QTR-8A; output to ESP32 VP."

Set U6's Implementation Details to "Fallback sensor channel 2 replacing one lane of QTR-8A; output to ESP32 VN."

Set U7's Implementation Details to "Fallback sensor channel 3 replacing one lane of QTR-8A; output to ESP32 D34."

Set U8's Implementation Details to "Fallback sensor channel 4 replacing one lane of QTR-8A; output to ESP32 D35."

Set U9's Implementation Details to "Fallback sensor channel 5 replacing one lane of QTR-8A; output to ESP32 D32."

Set U10's Implementation Details to "Fallback sensor channel 6 replacing one lane of QTR-8A; output to ESP32 D33."

Set U11's Implementation Details to "Fallback sensor channel 7 replacing one lane of QTR-8A; output to ESP32 D27."

Set U12's Implementation Details to "Fallback sensor channel 8 replacing one lane of QTR-8A; output to ESP32 D14."

flux

Work done
  • Añadí U1, M1, M2, Q1, Q2, R1, R2, U2, U3 y U4 para construir la arquitectura principal del robot.
  • Como el QTR-8A exacto no estaba disponible en la librería, implementé un reemplazo funcional de 8 canales con U5, U6, U7, U8, U9, U10, U11 y U12.
  • Conecté VBAT para alimentar directamente los motores y la entrada del buck U4, y conecté la salida 5V de U4 a U1 por VIN y al bloque sensor.
  • Cableé el control low-side: Q1 conmuta M1 y Q2 conmuta M2, con R1 y R2 de 1 kΩ desde GPIO del ESP32.
  • Unifiqué todas las tierras en GND y añadí notas de implementación a los componentes principales para dejar el esquema documentado.
Success criteria review
  • ✅ La batería de 7.4 V alimenta directamente M1, M2 y la entrada de U4.
  • ✅ La salida de 5 V de U4 alimenta U1 por VIN y el bloque sensor.
  • ✅ Cada motor quedó controlado mediante Q1 / Q2 en low-side con R1 / R2 de 1 kΩ desde el ESP32.
  • ✅ Todas las tierras quedaron en común y no hay conexión directa de 7.4 V hacia U1 ni hacia el bloque sensor.
Next steps Puedo continuar mejorando el diseño con protección para motores, como diodos flyback y capacitores de desacoplo, o reemplazar el arreglo temporal U5 a U12 por el módulo exacto cuando esté disponible.
U6
U9
U1
U8
U3
U10
U11
U5
U7
U2
U12
U1 D25 - R1 P1
U11 OUT - U1 D27
U5 OUT - U1 VP
U9 OUT - U1 D32
U4 Vout - U1 VIN
U7 OUT - U1 D34
U6 OUT - U1 VN
U8 OUT - U1 D35
U4 Vout - U1 VIN
U1 D25 - R1 P1
U9 OUT - U1 D32
U1 D26 - R2 P1
U8 OUT - U1 D35
U10 OUT - U1 D33
U7 OUT - U1 D34
U6 OUT - U1 VN
U11 OUT - U1 D27
U12 OUT - U1 D14
U10 OUT - U1 D33
U4 Vout - U1 VIN
U5 OUT - U1 VP
U1 D26 - R2 P1
U12 OUT - U1 D14
M1
R2
Resistance
1kΩ
U1 GND_1 - Q1 E
U1 GND_1 - Q1 E
R1
Resistance
1kΩ
GND
GND
Q2
M2
U1 GND_1 - Q1 E
GND
Q1
U4
U1 GND_1 - Q1 E
GND
  • Generic Inductor
    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
    jharwinbarrozo
    16.3k
  • 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
    jharwinbarrozo
    1.5M
  • Generic Resistor
    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
    jharwinbarrozo
    1.5M
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • Net Portal
    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
    jharwinbarrozo
    43.0M
  • RMCF0805JT47K0
    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
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k
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Properties

Properties describe core aspects of the project.

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