Design a schematic for a portable environmental se...

Design a schematic for a portable environmental sensor device based on the Seeed XIAO ESP32S3. The system includes the following components: • Seeed XIAO ESP32S3 (I2C on GPIO5/SDA and GPIO6/SCL, SPI on GPIO7/SCK, GPIO8/MISO, GPIO9/MOSI, CS on GPIO4, I2S on GPIO1/GPIO2/GPIO3) • SPS30 particulate matter sensor (I2C 0x69, 5V powered) connected via JST ZHR-5 5-pin connector • SHT31 temperature and humidity sensor (I2C 0x44) • BH1750 light sensor (I2C 0x23) • DS3231 RTC (I2C 0x68) • ADXL345 accelerometer (I2C 0x53) • INMP441 I2S microphone (WS/GPIO1, SCK/GPIO2, SD/GPIO3, L/R to GND) • SD card module via SPI with 6-pin connector • MT3608 boost converter (3.7V to 5V) with external inductor, capacitors and feedback resistors for the SPS30 • LiPo battery 3.7V with slide switch on BAT+ line connected to XIAO BAT pin and MT3608 input Use net labels for I2C and SPI buses. Include decoupling capacitors on all sensor VCC pins.

To get started, talk to Flux or create a New Document.

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    ESP32SC.svg

    ESP32SC.svg

    ESP32SCDefault
    3165629.png

    3165629.png

    iao-esp32s3Thumbnail
    step

    XIAO-ESP32S3 v2.step

    XIAO-ESP32S3 v23D Model

    Seeed Studio XIAO ESP32S3

    Seeed Studio XIAO ESP32S3 thumbnail
    Production-Ready PCB Design Verification

    Properties

    Clean

    0

    mm

    0

    mm

    Clean

    Consumer Electronics

    []

    352.7

    mm

    []

    All requested ERC and DRC reviews are clean. Manufacturing review: Clean.

    0

    mm

    362.6

    mm

    (367.6, -150)

    (367.6, -210)

    graph LR XIAO[XIAO ESP32S3] PSU[Power Subsystem] NEXTION[Nextion Connector] UART[UART Link] KEEP[Keepout Domain] TEST[Test Pad Domain] PSU -->|5V/GND| XIAO XIAO -->|TX/RX| NEXTION KEEP -.-> XIAO TEST --> XIAO TEST --> NEXTION

    -215

    mm

    -477.1

    mm

    []

    Missing footprints: C1, C2, C4, C5, R1, R2, J2, J3, Hole1, Hole2, Hole3, Hole4. No deprecated rules detected.

    Clean

    367.6

    mm

    C1, C2, C4, C5, R1, R2, J2, J3, Hole1, Hole2, Hole3, Hole4

    Clean - no errors from design_rule_check_manufacture_part_number, resistor_power_rating, capacitor_voltage_rating

    -25

    mm

    Clean

    (367.6, -30)

    XIAO Footprint Designator

    372.6

    mm

    (367.6, -90)

    Clean

    17.5

    mm

    23.5

    mm

    0

    mm

    Polygon coordinates: (x1, y1), (x2, y2), (x3, y3), (x4, y4) — covering the ESP32S3 onboard module’s antenna edge. Referenced from the top right of the XIAO footprint: Width 7.0 mm, Height 5.5 mm. Affected layers: Top, Bottom, TopCopper, BottomCopper, TopSilkscreen, BottomSilkscreen, TopMask, BottomMask. Clearance: no copper/fills/traces/components allowed; keepout is for all layers. Final coordinates and reference to be documented per final XIAO footprint placement in layout documentation.

    Microcontroller

    -490.2

    mm

    graph LR XIAO[XIAO ESP32S3] PSU[Power Subsystem] NEXTION[Nextion Connector] TEST[Programming/Test Pads] MOUNT[Mounting Holes] ANTENNA[Antenna Keepout] PSU -->|5V/GND| XIAO PSU -->|5V/GND| NEXTION XIAO -->|UART TX→RX| NEXTION XIAO -->|UART RX←TX| NEXTION TEST --> XIAO TEST --> NEXTION MOUNT -.-> XIAO ANTENNA -.-> XIAO

    113991114

    U

    Seeed Studio

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $0.48–$1.11

    Digi-Key

    $1.23–$1.58

    LCSC

    $0.54

    Mouser

    $1.96

    TME

    $1.15

    Verical

    $0.21–$1.80

    Controls