ahmetbektes / ESP32 Enviro Monitor

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ESP32 Environmental Monitor PCB Design

flux

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Work completed
  • Detailed goal & project description updated
  • System architecture flowchart added
  • Major ICs placed: ESP32-WROOM-32E (U1), TP4056 (U2), CP2102N-A02-GQFN24 (U4), BME280 (U5), SGP30-2.5k (U6)
  • Diode-OR path corrected (D1, D2 feeding U3:VIN)
  • USB-C CC pull-down resistors R7, R8 added
  • TP4056 PROG resistor (R9) set for 500 mA charge
  • Decoupling capacitors added per datasheets (C5, C6, C9, C10, C11)
  • Auto-programming network verified (Q1/R5, Q2/R6, DTR/RTS)
  • I²C pull-ups (R1, R2) and sensor nets wired (U5, U6)
  • Test points for 3V3, GND, EN, IO0, TXD0, RXD0 placed and connected
  • Footprints assigned and board size set to 50 mm × 35 mm
Remaining tasks
  • Add ESD protector USBLC6-2SC6 (U7)
  • Select a standard two-layer stackup and configure ground fill
Success criteria review
  • ✅ Power path fixed
  • ✅ CC resistors & PROG resistor installed
  • ✅ Decoupling capacitors per datasheets
  • ✅ Test points & clear net labels
  • ✅ PCB set to 50 mm × 35 mm, ready for routing
  • ⚠️ Missing ESD protection and stackup configuration
Next step Configure the PCB stackup and ground fill, then proceed to component placement and auto-routing on the board layout.
136 days
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    ESP32 Enviro Monitor

    ESP32 Enviro Monitor thumbnail
    ESP32 Environmental Monitor PCB with USB‑C, 500 mA LiPo Charging (TP4056, R9=2.4 kΩ), and I2C Sensors – 50 mm × 35 mm, 2‑Layer

    Properties

    50 mm × 35 mm

    Power Management

    Consumer Electronics

    ESP32 Environmental Monitor PCB with USB‑C, LiPo Charging, and I2C Sensors (50 mm × 35 mm, 2‑Layer)

    USB

    WiFi

    Power Management

    Complete ESP32 enviro monitor with USB-C, LiPo charging, and sensors

    10

    3.3

    V

    Arduino

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $10.28–$14.42

    Digi-Key

    $25.48–$28.99

    LCSC

    $18.45–$19.09

    Mouser

    $11.12

    TME

    $1.26

    Verical

    $10.61–$98.38

    Controls

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