4 layers32.6 × 40 mm
ESP32 C3 Mini
marouane-daoudi/esp32-c3-dev-board
4-layer ESP32-C3 WROOM development board with USB-C, ESD protection, LDO regulation and differential pair routing — designed in KiCad
31 parts
4 layers29 × 31.7 mm
ESP32-C3-mini
max-bispham/esp32-module-board-tutorialTutorial design I followed in order to learn kicad, pcb design process and schematic layout
- Size
- 29 × 31.7 mm
- Copper layers
- 4
- Thickness
- 1 mm
- Parts
- 29
- Nets
- 29
- Pads
- 153
- Tracks, vias
- 151, 32
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 15 Oct 2026
- Updated
- 15 Oct 2026
Overview
ESP32-C3-mini is an open-source printed circuit board by max-bispham, from the max-bispham/esp32-module-board-tutorial repository on GitHub. It is a 4-layer board of 29 × 31.7 mm with 29 parts on 29 nets, routed with 151 tracks and 32 vias.
It is built around the ESP32-C3-WROOM-02-H4, AP2112K-3.3 and USBLC6-2SC6, with the PESD5V0L1UL among its other parts. Its parts include 10 capacitors, 9 resistors, 3 ICs, 3 connectors and 2 switches. It belongs with the ESP32 and RISC-V boards of this library.
Main components
4
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
PESD5V0L1UL
SOD-8821 10nA 12V 25pF 3.5A@8/20us 42W@8/20us 5V 6.8V ESD IEC 61000-4-2 Unidirectional SOD-882 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
README
README.mdesp32-module-board-tutorial
Tutorial design I followed in order to learn kicad, pcb design process and schematic layout
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5 |
| 4 | 10k | Resistor_SMD:R_0201_0603Metric | R5, R7, R8, R9 |
| 3 | 100n | Capacitor_SMD:C_0402_1005Metric | C6, C9, C10 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2, J3 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1, SW2 |
| 2 | TBD | Capacitor_SMD:C_0201_0603Metric | C7, C8 |
| 1 | 0R | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 100R | Resistor_SMD:R_0201_0603Metric | R6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Crystal | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | ESP32-C3-WROOM-02 | RF_Module:ESP32-C3-WROOM-02 | U3 |
| 1 | PESD5V0L1UL | Diode_SMD:D_SOD-882 | D1 |
| 1 | TBD | Resistor_SMD:R_0201_0603Metric | R4 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
Questions
How big is the ESP32-C3-mini PCB?
It measures 29 × 31.7 mm and has 4 copper layers, 1 mm thick.
What parts does the ESP32-C3-mini use?
29 parts, built around the ESP32-C3-WROOM-02-H4, AP2112K-3.3, USBLC6-2SC6 and PESD5V0L1UL. 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-C3-mini KiCad files?
From the max-bispham/esp32-module-board-tutorial repository on GitHub, at the commit this page was made from: the board is ESP32-C3-mini/ESP32-C3-mini.kicad_pcb and its schematic ESP32-C3-mini/BlockDiagram.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32-C3-mini design in my own project?
Its repository states no licence, so its author keeps all rights: ask max-bispham before reusing the design.
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