4 layers100 × 75 mm
OpenHW DevKit
openhwfoundation/core-v-mcu-devkit
This is the CORE-V MCU DevKit project, hosting the open-source artifacts for the CORE-V MCU Development Kit.
235 parts18
2 layers27.8 × 56 mm
ESP32
leoagea/ESP32_BoardHomemade board with ESP32
- Size
- 27.8 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 63
- Pads
- 218
- Tracks, vias
- 519, 88
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Jan 2026
- Updated
- 5 Feb 2026
Overview
ESP32 is an open-source printed circuit board by leoagea, from the leoagea/ESP32_Board repository on GitHub. It is a 2-layer board of 27.8 × 56 mm with 36 parts on 63 nets, routed with 519 tracks and 88 vias.
It is built around the CP2104EK, ESP32-WROOM-32D and AMS1117-3.3, with the ESD9B5.0ST5G, BSS138 and BAT760-7 among its other parts. Its parts include 10 resistors, 8 capacitors, 5 diodes, 3 ICs and 3 connectors. It belongs with the ESP32 boards of this library.
Main components
6CP2104EK
-- USB Conversion Modules ROHSSilicon LabsUSB Conversion Modules
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
ESD9B5.0ST5G
SOD-923(0402)-55℃~+125℃ 1 10V 15pF 5V 8.4V 80W@8/20us 80nA 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOD-923(0402) ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
BAT760-7
SOD-323Schottky DiodesDOWO
README
README.mdESP32_Board
Homemade board with ESP32
This hardware design is licensed under the CERN-OHL-P v2.
You may use this design freely, modify it, and distribute it. If you distribute modified versions, you are encouraged but not required to publish them under the same licence.
For full details, see the LICENSE file or visit https://cern-ohl.web.cern.ch/.
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C4, C7, C8 |
| 3 | 22µ | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C6 |
| 3 | ESD9B5.0ST5G | Diode_SMD:D_SOD-923 | D3, D4, D5 |
| 3 | TestPoint_Pad_1.5x1.5mm | ESP32:TestPoint_Pad_1.5x1.5mm | 3V3, 5V, GND |
| 2 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 2 | 2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R8 |
| 2 | 5,1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R9 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2 |
| 2 | Conn_01x19_Socket | Connector_PinHeader_2.54mm:PinHeader_1x19_P2.54mm_Vertical | J2, J3 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1, SW2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | 10µ | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A_HandSolder | C5 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 4,7µ | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3 |
| 1 | 47,5k | Resistor_SMD:R_01005_0402Metric_Pad0.57x0.30mm_HandSolder | R6 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223 | U1 |
| 1 | BAT760-7 | Diode_SMD:D_SOD-323_HandSoldering | D2 |
| 1 | CP2104 | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U2 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32D | U3 |
| 1 | RED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
Questions
How big is the ESP32 PCB?
It measures 27.8 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32 use?
36 parts, built around the CP2104EK, ESP32-WROOM-32D, AMS1117-3.3 and ESD9B5.0ST5G. 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 KiCad files?
From the leoagea/ESP32_Board repository on GitHub, at the commit this page was made from: the board is WROOM/ESP32.kicad_pcb and its schematic S3-mini/S3-mini.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 design in my own project?
Its repository states no licence, so its author keeps all rights: ask leoagea before reusing the design.
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