2 layers90.2 × 90 mm
Sra dev board 2026
SRA-VJTI/sra-board-hardware-design
ESP32-based Development Board for Robotics and Embedded Applications
219 parts81MIT
4 layers70 × 20.3 mm
ESP32 Development Board
jayasuryaobbu/ESP32_Development_Board- Size
- 70 × 20.3 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 72
- Pads
- 234
- Tracks, vias
- 762, 76
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Aug 2025
- Updated
- 28 Aug 2025
Overview
ESP32 Development Board is an open-source printed circuit board by jayasuryaobbu, from the jayasuryaobbu/ESP32_Development_Board repository on GitHub. It is a 4-layer board of 70 × 20.3 mm with 47 parts on 72 nets, routed with 762 tracks and 76 vias.
It is built around the ESP32-WROOM-32E and AMS1117-3.3. Its parts include 15 resistors, 13 capacitors, 5 diodes, 5 connectors and 4 transistors. It belongs with the microcontroller boards boards and the ESP32 boards of this library.
Main components
2
ESP32-WROOM-32E
SMD,18x25.5mmSMD,18x25.5mm 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
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C4, C5, C6, C7, C9, C12, C13 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R6, R7, R8, R14 |
| 3 | ESD5.0 | Diode_SMD:D_SOD-523 | D3, D4, D5 |
| 2 | 0R | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C10, C11 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R11, R15 |
| 2 | 22R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x17_Pin | Connector_PinHeader_2.54mm:PinHeader_1x17_P2.54mm_Vertical | J1, J2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 2 | NPN | Package_TO_SOT_SMD:SOT-23-3 | Q1, Q2 |
| 2 | Q_NMOS_GDS | Package_TO_SOT_SMD:SOT-523 | Q3, Q4 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1, SW2 |
| 1 | 22.1k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 47.5k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 5.1k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 560R | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U3 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J5 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J3 |
| 1 | ESP32-WROOM-32E | RF_Module:ESP32-WROOM-32E | U1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J4 |
Questions
How big is the ESP32 Development Board PCB?
It measures 70 × 20.3 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ESP32 Development Board use?
47 parts, built around the ESP32-WROOM-32E and AMS1117-3.3. 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 Development Board KiCad files?
From the jayasuryaobbu/ESP32_Development_Board repository on GitHub, at the commit this page was made from: the board is ESP32_Development_Board.kicad_pcb and its schematic ESP32_Development_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 Development Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask jayasuryaobbu before reusing the design.
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