Intelligent Egg Incubator Design

Set Display Name to "I2C SDA Pull-up Resistor" on R7, Set Role to "pullup" on R7, R8, and R9, and 47 more changes

0:01

Set R7's Display Name to "I2C SDA Pull-up Resistor"

Set R7's Role to "pullup"

Set R7's Role Details to "Pull-up resistor for the I2C SDA line"

Set R8's Display Name to "I2C SCL Pull-up Resistor"

Set R8's Role to "pullup"

Set R8's Role Details to "Pull-up resistor for the I2C SCL line"

Set R9's Display Name to "DHT22 Data Pull-up Resistor"

Set R9's Role to "pullup"

Set R9's Role Details to "Pull-up resistor for optional DHT22 data line"

Set R10's Display Name to "Heater MOSFET Gate Resistor"

Set R10's Role to "drive"

Set R10's Role Details to "Series gate resistor for heater MOSFET control"

Set R11's Display Name to "Humidifier MOSFET Gate Resistor"

Set R11's Role to "drive"

Set R11's Role Details to "Series gate resistor for humidifier MOSFET control"

Set R12's Display Name to "Fan MOSFET Gate Resistor"

Set R12's Role to "drive"

Set R12's Role Details to "Series gate resistor for fan MOSFET control"

Set R13's Display Name to "LED MOSFET Gate Resistor"

Set R13's Role to "drive"

Set R13's Role Details to "Series gate resistor for LED ring MOSFET control"

Set R14's Display Name to "Heater MOSFET Pulldown Resistor"

Set R14's Role to "pulldown"

Set R14's Role Details to "Gate pulldown resistor to keep heater off during reset"

Set R15's Display Name to "Humidifier MOSFET Pulldown Resistor"

Set R15's Role to "pulldown"

Set R15's Role Details to "Gate pulldown resistor to keep humidifier off during reset"

Set R16's Display Name to "Fan MOSFET Pulldown Resistor"

Set R16's Role to "pulldown"

Set R16's Role Details to "Gate pulldown resistor to keep fan off during reset"

Set R17's Display Name to "LED MOSFET Pulldown Resistor"

Set R17's Role to "pulldown"

Set R17's Role Details to "Gate pulldown resistor to keep LED ring off during reset"

Set C7's Display Name to "12V Load Bulk Capacitor"

Set C7's Role to "bulk"

Set C7's Role Details to "Bulk capacitor for 12V load rail stability"

Set C8's Display Name to "5V Servo Bulk Capacitor"

Set C8's Role to "bulk"

Set C8's Role Details to "Bulk capacitor for servo current pulses on the 5V rail"

Set C10's Display Name to "SHT31 Decoupling Capacitor"

Set C10's Role to "decoupling"

Set C10's Role Details to "Local bypass capacitor for the SHT31 sensor supply"

Set C11's Display Name to "OLED Decoupling Capacitor"

Set C11's Role to "decoupling"

Set C11's Role Details to "Local bypass capacitor for the OLED display supply"

Set C12's Display Name to "3V3 Bulk Capacitor"

Set C12's Role to "bulk"

Set C12's Role Details to "Bulk capacitor for the 3.3V logic and sensor rail"

Set C13's Display Name to "ESP32-CAM Decoupling Capacitor"

Set C13's Role to "decoupling"

Set C13's Role Details to "Local bypass capacitor for the ESP32-CAM 5V supply"

Set C14's Display Name to "HX711 Decoupling Capacitor"

Set C14's Role to "decoupling"

Set C14's Role Details to "Local bypass capacitor for the HX711 module supply"

Set C15's Display Name to "DHT22 Decoupling Capacitor"

Set C15's Role to "decoupling"

Set C15's Role Details to "Local bypass capacitor for the optional DHT22 supply"

Set C16's Display Name to "AP2112 Input Capacitor"

Set C16's Role to "decoupling"

Set C16's Role Details to "Input capacitor for AP2112 3.3V regulator stability"

Set C17's Display Name to "AP2112 Output Bulk Capacitor"

Set C17's Role to "bulk"

Set C17's Role Details to "Output bulk capacitor for AP2112 3.3V regulator stability"

Set C18's Display Name to "AP2112 Output Bypass Capacitor"

Set C18's Role to "decoupling"

Set C18's Role Details to "High-frequency bypass capacitor on the 3.3V regulator output"

flux

0:17

Work done
  • Labeled all real incubator schematic components with a clear Display Name and one-word Role property.
  • Covered the ESP32-S3, ESP32-CAM, HX711/load cell interface, SHT31, DHT22, OLED, LM2596, AP2112K, MOSFET load switches, connectors, input protection, flyback/TVS diode, resistors, and capacitors.
  • Verified the schematic still has 56 nets, matching the pre-labeling state, so the update was limited to metadata and did not affect electrical connections.
Success criteria review
  • ✅ Every real schematic component now has a clear Display Name.
  • ✅ Every real schematic component now has a one-word function in the Role property.
  • ✅ Existing electrical connections were preserved; no wiring edits were made.
  • ✅ Labels now map components to incubator functions like control, imaging, sensing, heating, humidity, cooling, turning, weighing, lighting, conversion, regulation, and protection.
Next steps
If you want, I can next help make the PCB layout clearer by grouping the physical board placement into functional areas: power, controller, sensors/camera, load drivers, and connectors.
Group PCB layout
Run ERC check
Subsystem BOM
Review MOSFET drivers
Check connector labels

Finished working

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Firmware Getting Started — ESP32 Intelligent Egg Incubator
Target framework
Recommended starting point: ESP-IDF or Arduino-ESP32 for ESP32-S3. Use the GPIO map below exactly as wired in the schematic.
Pin definitions
Cpp
#define PIN_I2C_SDA        8
#define PIN_I2C_SCL        9
#define PIN_HX711_DOUT     4
#define PIN_HX711_SCK      5
#define PIN_DHT22_DATA     6
#define PIN_SERVO_PWM      14
#define PIN_HEATER_PWM     10
#define PIN_HUMIDIFIER_EN  11
#define PIN_FAN_PWM        12
#define PIN_LED_EN         13

// ESP32-CAM UART link
// U1 UART_TXD0 -> CAM_UART_RX -> ESP32-CAM IO3/U0R
// U1 UART_RXD0 <- CAM_UART_TX <- ESP32-CAM IO1/U0T

Peripheral summary

PeripheralInterfaceSchematic nets
SHT31I2CI2C_SDA, I2C_SCL
SSD1306 OLEDI2CI2C_SDA, I2C_SCL
HX7112-wire digitalHX711_DOUT, HX711_SCK
ESP32-CAMUARTCAM_UART_RX, CAM_UART_TX
DHT22One-wire style dataDHT22_DATA
ServoPWMSERVO_PWM
HeaterPWM/GPIO MOSFETHEATER_PWM
HumidifierGPIO MOSFETHUMIDIFIER_EN
FanPWM/GPIO MOSFETFAN_PWM
White LEDGPIO/PWM MOSFETLED_EN
Suggested startup sequence
  1. Initialize serial logging.
  2. Configure GPIO outputs low for heater, humidifier, fan, and LED.
  3. Start I2C on GPIO8/GPIO9.
  4. Initialize SHT31 and SSD1306 display.
  5. Initialize HX711 using GPIO4/GPIO5.
  6. Initialize DHT22 backup sensor on GPIO6.
  7. Configure PWM channels for servo, fan, LED, and heater as needed.
  8. Start UART link to ESP32-CAM.
  9. Enter the incubation control loop: read sensors, update display, regulate heat/humidity/airflow, periodically turn eggs, and request/receive camera verification.
Notes before firmware bring-up
  • Confirm the final ESP32-S3 dev board pin numbering matches the module GPIO numbers used here.
  • Keep all 12V load GPIOs off during boot until the control loop explicitly enables them.
  • Use a watchdog and safe default states so heater and humidifier fail off.

    Target framework

    Pin definitions

    Peripheral summary

    Suggested startup sequence

    Notes before firmware bring-up

Documents

    Firmware Getting Started — ESP32 Intelligent Egg Incubator

    Design Notes — ESP32 Intelligent Egg Incubator

Assets

Assets are files uploaded to this project which can be used in various ways.

ESP32 Intelligent Egg Incubator thumbnail
ESP32-S3 intelligent egg incubator schematic with camera-based egg verification, load-cell assessment, environmental sensing, heater/humidifier/fan control, servo turning, and OLED status display.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$15.47–$24.01

Digi-Key

$22.93–$26.46

HQonline

$5.84

LCSC

$2.38–$5.55

Mouser

$21.30

TME

$9.14

Verical

$18.45–$26.99

Controls