# ESP32 Intelligent Egg Incubator ## Description 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. ## Project Details - **Owner:** fsdorado - **Created:** 5/8/2026 - **Last Updated:** 5/8/2026 - **Visibility:** Public ## Key Components ### D8 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Display Name: Fan Flyback Schottky Diode - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Manufacturer Name: Diodes Incorporated - Role Details: Flyback clamp for the cooling fan inductive load - Manufacturer Part Number: 1N5819HW-7-F - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Role: protection **Pins:** - A [pin 2] - K [pin 1] ### D9 — [SMBJ15A-13-F](https://www.flux.ai/lcsc/smbj15a-13-f~8gof.md) - Manufacturer Part Number: SMBJ15A-13-F - JLCPCB Part Class: Extended Part - Role: protection - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ15A-13-F_SMBJ15A-13-F_C135046.html - Display Name: 12V TVS Surge Diode - Part Type: TVS - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ15A-13-F_C135046.pdf - LCSC Part Number: C135046 - Role Details: Transient surge clamp on the 12V power rail **Pins:** - A [pin 2] - K [pin 1] ### F1 — [SMD2920B100TF](https://www.flux.ai/adrian95/smd2920b100tf~7ax.md) - Display Name: 12V Input Polyfuse - Manufacturer Part Number: SMD2920B100TF - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Resettable overcurrent protection for the 12V input - Datasheet URL: https://www.mouser.com/datasheet/2/447/YAGO_S_A0006617507_1-2572901.pdf - Manufacturer Name: YAGEO - Role: protection - Part Type: Fuse **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Manufacturer Part Number: 691137710002 - Part Type: Connector - Role Details: External 12V 10A supply input to incubator electronics and loads - Role: input - Display Name: 12V Power Input Connector - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik **Pins:** - P1 [pin 1] - P2 [pin 2] ### J2 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Display Name: PTC Heater Connector - Role: heating - Role Details: Connector for the 12V PTC ceramic heater load - Part Type: Connector - Manufacturer Part Number: 691137710002 - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik **Pins:** - P1 [pin 1] - P2 [pin 2] ### J3 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Role: humidity - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik - Display Name: Humidifier Connector - Manufacturer Part Number: 691137710002 - Part Type: Connector - Role Details: Connector for the ultrasonic mist humidifier load **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Role: cooling - Display Name: Cooling Fan Connector - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Role Details: Connector for the 12V brushless cooling fan - Manufacturer Name: Würth Elektrik - Part Type: Connector - Manufacturer Part Number: 691137710002 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J5 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Display Name: LED Ring Connector - Manufacturer Name: Würth Elektrik - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Role: lighting - Part Type: Connector - Manufacturer Part Number: 691137710002 - Role Details: Connector for white LED ring or LED strip illumination **Pins:** - P1 [pin 1] - P2 [pin 2] ### J7 — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - License: https://creativecommons.org/licenses/by/4.0/ - Display Name: 1kg Load Cell Header - Role: weighing - Part Type: Connector - Role Details: Four-wire connector for the 1kg load cell bridge **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### PS1 — [LM2596 DC-DC buck converter](https://www.flux.ai/vasy_skral/lm2596-dc-dc-buck-converter~2q1.md) - Role: conversion - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Display Name: LM2596 Buck Converter - Role Details: 12V to 5V power conversion for modules and servo power **Pins:** - IN - [pin 2] - IN + [pin 1] - OUT - [pin 3] - OUT + [pin 4] ### Q1 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Manufacturer Part Number: IRLZ44NPBF - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - Role Details: Low-side MOSFET driver for the 12V PTC ceramic heater - Manufacturer Name: Infineon Technologies - License: https://creativecommons.org/licenses/by/4.0/ - Role: switching - Display Name: Heater MOSFET Switch - Part Type: Transistor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Manufacturer Part Number: IRLZ44NPBF - Manufacturer Name: Infineon Technologies - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - Display Name: Humidifier MOSFET Switch - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Low-side MOSFET driver for the ultrasonic mist humidifier - Part Type: Transistor - Role: switching **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q3 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Role Details: Low-side MOSFET driver for the 12V brushless cooling fan - License: https://creativecommons.org/licenses/by/4.0/ - Display Name: Fan MOSFET Switch - Part Type: Transistor - Role: switching - Manufacturer Part Number: IRLZ44NPBF - Manufacturer Name: Infineon Technologies - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q4 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Part Type: Transistor - Display Name: LED Ring MOSFET Switch - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Low-side MOSFET driver for the white LED ring or strip - Role: lighting - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - Manufacturer Name: Infineon Technologies - Manufacturer Part Number: IRLZ44NPBF **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Servo1 — [Pin Header 01x03 2.54mm Vertical for Servo Motor](https://www.flux.ai/project-x/pin-header-01x03-2p54mm-vertical-for-servo-motor~jl.md) - Display Name: MG996R Servo Header - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Servo connector for periodic egg-turning tray mechanism - Part Type: Connector - Role: turning **Pins:** - 5v [pin 2] - Data [pin 3] - Gnd [pin 1] ### U2 — [ESP32-CAM](https://www.flux.ai/vasy_skral/esp32-cam~pv.md) - Manufacturer Part Number: Ai-Thinker ESP32-CAM WiFi BT BLE - Manufacturer Name: Ai-Thinker - Datasheet URL: https://www.universal-solder.ca/downloads/ESP32-CAM.pdf - Display Name: ESP32-CAM OV2640 Camera Module - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: Parametric - Role: imaging - Role Details: Camera subsystem for egg image capture and identification - Part Type: Development Board **Pins:** - .GND [pin P$9] - 3V3 [pin P$16] - 3V3. [pin P$12] - 5V [pin P$1] - GND [pin P$2] - GND. [pin P$13] - IO0 [pin P$14] - IO1/U0T [pin P$10] - IO12 [pin P$3] - IO13 [pin P$4] - IO14 [pin P$6] - IO15 [pin P$5] - IO16 [pin P$15] - IO2 [pin P$7] - IO3/U0R [pin P$11] - IO4 [pin P$8] ### U3 — [SEN-13879](https://www.flux.ai/adrian95/sen-13879~85r.md) - Datasheet URL: https://www.digikey.com/en/products/detail/SEN-13879/1568-1436-ND/6202732?curr=usd&utm_campaign=buynow&utm_medium=aggregator&utm_source=octopart - Role: weighing - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Display Name: HX711 Load Cell Amplifier Module - Manufacturer Name: SparkFun Electronics - Role Details: Load-cell interface for egg weight sensing - Manufacturer Part Number: SEN-13879 **Pins:** - B- [pin 12] - B+ [pin 11] - BLK [pin 2] - CLK [pin 7] - DAT [pin 8] - GND [pin 6] - GRN [pin 4] - RED [pin 1] - VCC [pin 9] - VDD [pin 10] - WHT [pin 3] - YLW [pin 5] ### U4 — [SHT31-DIS-B2.5KS](https://www.flux.ai/adrian95/sht31-dis-b2p5ks~6uh.md) - Datasheet URL: https://sensirion.com/media/documents/213E6A3B/63A5A569/Datasheet_SHT3x_DIS.pdf - Manufacturer Name: Sensirion - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SHT31-DIS-B2.5KS - Part Type: Sensor - Role: sensing - Role Details: Primary incubator temperature and humidity sensor - Display Name: SHT31 Temperature Humidity Sensor **Pins:** - ADDR [pin 2] - ALERT [pin 3] - EP [pin 9] - NRESET [pin 6] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 8] ### U5 — [DHT22-AM2302 Sensor Module](https://www.flux.ai/adrian95/dht22-am2302-sensor-module~8tv.md) - Manufacturer Name: Adafruit Industries - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: backup - Role Details: Optional backup environmental sensor - Display Name: DHT22 Backup Temperature Humidity Sensor - Part Type: Module - Manufacturer Part Number: DHT22-AM2302 **Pins:** - DATA [pin 2] - GND [pin 3] - VCC [pin 1] ### U7 — [AP2112K-3.3TRG1](https://www.flux.ai/adrian95/ap2112k-33trg1~zlq.md) - Manufacturer Part Number: AP2112K-3.3TRG1 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Symbol Style: parametric-v1 - Role: regulation - Display Name: AP2112K 3.3V Regulator - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP2112.pdf - Role Details: 3.3V logic rail regulator for sensors and control electronics - Part Type: Integrated Circuit **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/fsdorado/esp32-intelligent-egg-incubator~ag](https://www.flux.ai/fsdorado/esp32-intelligent-egg-incubator~ag).* --- *Generated from [https://www.flux.ai/fsdorado/esp32-intelligent-egg-incubator~ag](https://www.flux.ai/fsdorado/esp32-intelligent-egg-incubator~ag)*