4 layers26.4 × 56.8 mm
ESP32 Dev module
andresmoreno2702-gif/ESP32-S3-Dev-Board-Project
All KICAD Files and Schematics
26 partsMIT
4 layers25.4 × 62.7 mm
ESP32 Board
Fred98246/ESP-32-Dev-Board2Custom ESP32-S3-MINI-1 development board
- Size
- 25.4 × 62.7 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 55
- Pads
- 210
- Tracks, vias
- 655, 104
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Jun 2026
- Updated
- 24 Jun 2026
Overview
ESP32 Board is an open-source printed circuit board by Fred98246, from the Fred98246/ESP-32-Dev-Board repository on GitHub, published under the MIT licence. It is a 4-layer board of 25.4 × 62.7 mm with 27 parts on 55 nets, routed with 655 tracks and 104 vias.
It is built around the ESP32-S3-MINI-1-N8, ENS210 and D3V3XA4B10LP, with the TLV75801PDRV and WS2812B among its other parts. Its parts include 8 capacitors, 8 resistors, 4 ICs, 3 connectors and 2 diodes. It belongs with the microcontroller boards boards and the ESP32 boards of this library.
Main components
5
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
ENS210
QFN-4-EP(2x2)QFN-4-EP(2x2) Temperature and Humidity Sensor ROHSSciosenseUncategorised
D3V3XA4B10LP
UDFN2510-10-55℃~+150℃ 0.35pF 1uA 24W@8/20us 3.3V 4A@8/20us 9.4V 9V ESD Four channels IEC 61000-4-2、IEC 61000-4-5 UDFN2510-10 ESD and Surge Protection (TVS/ESD) ROHSDiodes IncorporatedESD And Surge Protection (TVS/ESD)
TLV75801PDRV
WSON-6-EP(2x2)-40℃~+125℃@(Tj) 1 31uA 500mA 50dB@(1kHz) 53uVrms 550mV~5.5V 6V Adjustable Positive Under Voltage Lockout、Over Current Protection、Soft Start、Thermal Shutdown WSON-6-EP(2x2) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdCustom ESP32-S3-MINI-1 Development Board
Overview
This repository contains the hardware design files for a custom ESP32-S3 4 layer development board. Built around the ESP32-S3-MINI-1 module, this board is designed for flexible IoT development.
The schematic and PCB layout were designed using KiCad V6 E.D.A.
Schematic:
PCB:
Layers:
3D View:
Hardware Features
This development board includes:
- Microcontroller: ESP32-S3-MINI-1 (Wi-Fi & Bluetooth LE).
- USB Interface: USB Type-C receptacle with dedicated ESD protection (D3V3XA4B10LP).
- Power Management: 5V to 3.3V LDO regulator (TLV75801PDBV) with a dedicated power indicator LED.
- Onboard Sensors & Outputs:
- ENS210 Temperature and Humidity Sensor (connected via I2C).
- WS2812B Addressable RGB LED for visual status feedback.
- User Controls: Physical
BOOTandRESETtactile switches for easy flashing and debugging. - Expansion: Two 22-pin headers breaking out GPIOs, I2C, UART, USB data lines, and power rails for easy breadboarding.
Acknowledgements & Design Methodology
The design of this custom board was verified and optimized following the hardware design tutorials by John Teel at Predictable Designs.
Related Documents & Resources
For detailed specifications on the core components and reference designs, please consult the following official Espressif documentation:
- ESP32-S3 Datasheet (PDF) [blocked]
- ESP32-S3-MINI-1 & ESP32-S3-MINI-1U Datasheet (PDF) [blocked]
- ESP32-S3-DevKitM-1 Schematic (PDF) [blocked]
- ESP32-S3-DevKitM-1 PCB layout (PDF) [blocked]
- ESP32-S3-DevKitM-1 Dimensions (PDF) [blocked]
- ESP32-S3-DevKitM-1 Dimensions source file (DXF) [blocked]
Repository Structure
/Hardware- KiCad project files (.pro,.sch,.kicad_pcb)./Docs- Exported schematics, BOM, and Gerber files for manufacturing./Firmware- Example code for testing the WS2812B LED and ENS210 sensor.
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C5, C6, C8 |
| 3 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4 |
| 3 | 10K | Resistor_SMD:R_0603_1608Metric | R2, R8, R9 |
| 3 | 5.1K | Resistor_SMD:R_0603_1608Metric | R3, R4, R5 |
| 2 | Conn_01x22_Pin | Connector_PinHeader_2.54mm:PinHeader_1x22_P2.54mm_Vertical | J2, J3 |
| 1 | 0.1U | Capacitor_SMD:C_0603_1608Metric | C10 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 200k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_PTS810 | SW2 |
| 1 | D3V3XA4B10LP | Package_DFN_QFN:Diodes_UDFN-10_1.0x2.5mm_P0.5mm | U3 |
| 1 | ENS210 | Package_DFN_QFN:AMS_QFN-4-1EP_2x2mm_P0.95mm_EP0.7x1.6mm | U4 |
| 1 | ESP32-S3-MINI-1 | RF_Module:ESP32-S2-MINI-1 | U1 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | RESET | Button_Switch_SMD:SW_SPST_PTS810 | SW1 |
| 1 | TLV75801PDRV | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1 |
Questions
How big is the ESP32 Board PCB?
It measures 25.4 × 62.7 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ESP32 Board use?
27 parts, built around the ESP32-S3-MINI-1-N8, ENS210, D3V3XA4B10LP and TLV75801PDRV. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ESP32 Board KiCad files?
From the Fred98246/ESP-32-Dev-Board repository on GitHub, at the commit this page was made from: the board is ESP32_Board.kicad_pcb and its schematic ESP32_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 Board design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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