# ESP32 Domotic Cooler Control ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** morenabovone - **Created:** 4/16/2026 - **Last Updated:** 4/17/2026 - **Visibility:** Public ## Key Components ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Name: Diodes Incorporated - Part Type: Diode - Role Details: Clamps inductive kick from the 2-wire DC cooler when switching off - Manufacturer Part Number: 1N5819HW-7-F - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Package: SOD-123 - Role: Flyback Diode - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### J1 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Connector Positions: 2 - Manufacturer Part Number: XY301V-A-5.0-2P - Implementation Details: PIN1 = COOLER+, PIN2 = COOLER- (switched low side) - Connector Type: Screw Terminal - Role Details: External connector for the model cooler positive and switched negative - Manufacturer Name: Ningbo Xinlaiya Elec. - Package: 2-pin 5.0mm terminal - Role: Cooler Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### Q1 — [DMN3033LDM](https://www.flux.ai/kicad-part-library/dmn3033ldm~58x.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds31345.pdf - Package or Case Code: SOT-23-6 - Manufacturer Part Number: DMN3033LDM - Package: SOT-23-6 - Role: Cooler Switch - Role Details: Low-side MOSFET switch controlled by the ESP32 for the DC cooler **Pins:** - D [pin 2] - D [pin 5] - D [pin 1] - D [pin 6] - G [pin 3] - S [pin 4] ### U1 — [ESP32-WROOM-32D](https://www.flux.ai/vasyl/esp32-wroom-32d~7py.md) - Implementation Details: GPIO25 assigned to cooler control output - Environment: Industrial (-40 °C to 85 °C, EMI class) - Role Details: ESP32 controller that drives the cooler output stage - Manufacturer Name: Espressif Systems - Package: DevKit / Module - Part Type: Microcontroller - Manufacturer Part Number: ESP32-WROOM-32D - License: https://creativecommons.org/licenses/by/4.0/ - Stackup: Standard 4 Layer - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf - Copper Planes: Layer 2: GND, Layer 3: 5V - Role: Main Controller **Pins:** - 3.3V [pin 2] - AGND [pin 39] - CLK [pin 20] - CMD [pin 19] - EN [pin 3] - GND [pin 38] - GND [pin 15] - GND [pin 1] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0 [pin 34] - SD0 [pin 21] - SD1 [pin 22] - SD2 [pin 17] - SD3 [pin 18] - TXD0 [pin 35] - VN [pin 5] - VP [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/morenabovone/esp32-domotic-cooler-control](https://www.flux.ai/morenabovone/esp32-domotic-cooler-control).* --- *Generated from [https://www.flux.ai/morenabovone/esp32-domotic-cooler-control](https://www.flux.ai/morenabovone/esp32-domotic-cooler-control)*