Sensor Hub Design for Raspberry Pi 5

Updated project description

0:04

Updated to: "Compact 4-Layer Raspberry Pi 5 Sensor Hub with Teensy 4.1, 36-Channel FSR Network, SPI Encoders, and Qwiic IMU"

62 days

Added power components

0:45

Started: Add power components from the library including polyfuse, TVS diode, LTC4412 ideal-diode IC, TPS62172 buck regulator, ferrite bead, decoupling capacitors (10 µF and 0.1 µF), and test point footprint

62 days

Connected power nets to components

1:02

Started: 3.2 Connect power nets: - Connect CN1 pin 1 to F1 pin ~ - Connect CN1 pin 1 to D1 A2 - Connect D1 A2 to U13 VIN - Connect U13 VOUT to U12 VIN - Connect U12 VOUT to FB1 pin 1 - Connect FB1 pin 2 to C1 P1 - Connect FB1 pin 2 to C4 P1 - Connect C1 P1 to TP1 pin 1 - Connect C4 P1 to TP2 pin 1

62 days

Added host interface connectors

1:16

Started: 4.1 Add connectors from the Flux library: - Teensy 4.1 header (U10) - Raspberry Pi 5 power header (U11) - 6× SPI JST-GH encoder connectors (CN2–CN7) - Qwiic I2C connector (CN8)

62 days

Connected power and ground nets

1:02

Started: Connect power and ground to connectors: - Connect 3V3A net to U10 VIN pin - Connect 3V3A net to CN8 VCC pin - Connect 5V_RAIL net to U11 V5 pin - Connect GND net to U10 GND pin - Connect GND net to U11 GND pin - Connect GND net to CN2 pin 6 - Connect GND net to CN3 pin 6 - Connect GND net to CN4 pin 6 - Connect GND net to CN5 pin 6 - Connect GND net to CN6 pin 6 - Connect GND net to CN7 pin 6 - Connect GND net to CN8 pin 4

62 days

Completed adding series and pull-up resistors

0:47

Started: 5.1 Add series and pull-up resistors: add generic series resistors on SPI_SCK, SPI_MOSI, and SPI_MISO nets and add generic pull-up resistors tied to 3V3A on each CS (pins 2–7) and on I2C_SDA and I2C_SCL nets

62 days

Added ESD protection arrays

0:41

Started: 5.2 Add ESD protection arrays: find and add appropriate ESD array components for all off-board connector signal lines and connect each signal net to an ESD array channel, then connect the ESD array ground pin to the GND net

62 days

Connected signal nets

0:40

Started: 5.3 Connect signal nets

62 days

Added analog components

0:38

Started: 6.1 Add analog components

62 days

Connected analog nets for FSR AFE

0:38

Started: 6.2 Connect analog nets

62 days

Re-running ERC and fixing errors...

0:23

Started: Re-run ERC and fix any remaining errors to achieve a clean pass

62 days

Fetched ERC review results

1:20

Review (ERC/DRC)

Started: Fetch ERC review results via @review tool and update project property "ERC Issues" with the list of current errors

Using Review (ERC/DRC) Tool.

62 days

Updated 1 document property

0:08

Set ERC Issues to "No outstanding ERC/DRC/system review errors; all current @review items are resolved or accepted at this revision."

62 days

Fetched ERC review results

0:48

Started: 7.3 Fix ERC issues by making necessary net connections and adding missing components until no ERC errors remain

62 days

Worked

0:15

62 days

Stopped due to a problem. Please try again.

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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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Compact 4-Layer Raspberry Pi 5 Sensor Hub with Teensy 4.1, 36-Channel FSR Network, SPI Encoders, and Qwiic IMU

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$30.88–$35.62

Digi-Key

$23.10–$26.12

LCSC

$41.57–$41.58

Mouser

$55.46

TME

$22.94

Verical

$17.37–$27.70

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