Sensor Hub Schematic Design

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Work completed
  • Updated project description and saved the system‐architecture diagram
  • Added all major active ICs and power‐protection components: F1, D1, Q1, U2, L1, U1, U5, U6, U7, U4, U9
  • Placed all connectors and headers: six 6-pin SPI headers, 4-pin IMU header, 40-pin FPC (J17), three solder-jumpers, and test points (TP_5V, TP_3V3, TP_3V3A, TP_GND)
  • Added all passive components (bulk/decoupling capacitors, series and pull-up resistors, RC-filter components)
  • Completed net connections:
    • 5 V → polyfuse → TVS → ideal-diode → buck → split 3 V3 / 3 V3A rails
    • Teensy 4.1 pins → SPI/I²C/MUX/ADC nets
    • Six encoders (series resistors + pull-ups + ESD)
    • IMU header with switchable pull-ups on SDA/SCL
    • FPC pins mapped to FSR[0..35], three multiplexers sharing S0..S3, COM → 3 V3A → op-amp → ADC0..2 with RC filters
  • Renamed duplicate Teensy symbols as DNP, organized net labels/buses, and verified no back-feed to Pi
Tasks left None – every step in the implementation plan has been completed.
Success criteria All criteria are met: full schematic connectivity, clean net labeling, isolated analog rail, dedicated test points, and no back-feed to the Raspberry Pi.
Next step Would you like me to perform a detailed schematic review (check clearances, headroom, and annotations) or proceed directly to PCB layout preparation?
57 days
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J9
R47 P2 - C15 P1
R4
Resistance
10kΩ
JP2
R49
Resistance
1kΩ
R10
Resistance
10kΩ
R46
Resistance
10kΩ
R31
Resistance
10kΩ
U5 S1 - U6 S1
R3
Resistance
10kΩ
R20
Resistance
33Ω
J11
R19
Resistance
33Ω
R16
Resistance
33Ω
R49 P2 - C17 P1
R43 P2 - J4 6
J10
R41 P2 - J2 6
J14
R2
Resistance
4.7kΩ
R2 P2 - J8 1
R48
Resistance
1kΩ
R21
Resistance
33Ω
R40
Resistance
22 Ω
R30
Resistance
1kΩ
R38
Resistance
33 Ω
R42
Resistance
10kΩ
R18
Resistance
33Ω
R46 P2 - J7 6
R24
Resistance
1kΩ
R44 P2 - J5 6
R5
Resistance
10kΩ
R27
Resistance
33Ω
R43
Resistance
10kΩ
R44
Resistance
10kΩ
R42 P2 - J3 6
U5 S1 - U6 S1
JP3
R25
Resistance
1kΩ
J13
R32
Resistance
4.7kΩ
R13
Resistance
33Ω
U5 S2 - U6 S2
R1
Resistance
4.7kΩ
JP1
R40 P2 - J2 5
R39
Resistance
0 Ω
R6
Resistance
10kΩ
J15
R22
Resistance
33Ω
U5 S3 - U6 S3
R8
Resistance
10kΩ
J12
R14
Resistance
33Ω
R29
Resistance
22Ω
R38 P2 - J2 4
R45 P2 - J6 6
R7
Resistance
10kΩ
U5 S3 - U6 S3
R47
Resistance
1kΩ
U5 S2 - U6 S2
R45
Resistance
10kΩ
R12
Resistance
33Ω
R9
Resistance
10kΩ
R15
Resistance
33Ω
U5 S2 - U6 S2
R26
Resistance
1kΩ
R28
Resistance
0Ω
R11
Resistance
10kΩ
U5 S3 - U6 S3
U5 S1 - U6 S1
R33
Resistance
0Ω
R2 P1 - J8 4
R48 P2 - C16 P1
R41
Resistance
10kΩ
R17
Resistance
33Ω
R1 P1 - J8 3
R23
Resistance
33Ω
TP_3V3A
U5
U6
F1
C4
Capacitance
47µF
C11
Capacitance
10 nF
Q1
End of Life
Rpi 51
U2
F1
C9
Capacitance
0.1µF
J1
U2
C12
Capacitance
10 nF
C10
Capacitance
10 nF
C7
Capacitance
0.1µF
TP_GND
C14
Capacitance
0.1 µF
J16
C8
Capacitance
10µF
TP_3V3
U7
U3
U1_DNP1
C6
Capacitance
10µF
C5
Capacitance
0.1µF
C13
Capacitance
47 µF
U3
U1_DNP2
U1
J19
J18
U4
U4
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • 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
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • 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 10,000uF 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 20pF 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 Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
    jharwinbarrozo
    15.5k
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M
Manav Contact Glove thumbnail
Raspberry Pi 5 Sensor Hub with Protected Power Tree, Teensy 4.1 Core, and 36‑Channel FSR Front-End

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$16.24–$18.11

Digi-Key

$102.56–$104.13

LCSC

$21.49

Mouser

$86.13

TME

$9.20

Verical

$116.30–$128.51

Assets

No assets added.

Controls