Esp32c3 devboard
tmilkovic51·esp32c3_devboard
About the Esp32c3 devboard PCB
Esp32c3 devboard is an open source ESP32 PCB design by tmilkovic51, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 47 × 34 mm, with 69 components from 29 distinct parts.
Its main chip is the ESP32-C3-WROOM-02-SOCKET, from the ESP32 family. Other key parts include the AMS1117-3.3, SRV05-4, USB2514B_BI and CP2102N-A01-GQFN28. By type, the board carries 24 capacitors, 23 resistors, 5 ICs, 5 diodes, 4 jumpers and 3 connectors.
It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.
From the project
A development board integrating the socket for easily swapping the ESP32-C3-WROOM-02 modules, designed in KiCad

Main components on the Esp32c3 devboard
Esp32c3 devboard bill of materials (BOM)
69 components, 29 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | SRV05-4 | SOT-23-6 | U2 |
| 1 | USB2514B_BI USB2514B_Bi | QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm | U3 |
| 1 | CP2102N-A01-GQFN28 | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U4 |
| 1 | ESP32-C3-WROOM-02-SOCKET | ESP32-C3-WROOM-02-SOCKET | U5 |
| 2 | S8050 | SOT-23 | Q1, Q2 |
| 1 | 24MHZ 24MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J1 |
| 2 | Conn_01x15_Male | PinHeader_1x15_P2.54mm_Vertical | J2, J3 |
| 1 | GPIO18_SB | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | GPIO19_SB | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | GPIO20_SB | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | GPIO21_SB | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | BOOT | SW_SPST_CK_RS282G05A3 | SW1 |
| 1 | RST | SW_SPST_CK_RS282G05A3 | SW2 |
| 1 | C2286 PWR_LED | LED_0603_1608Metric | D1 |
| 4 | SK6805 | LED_SK6805_E14_1.4x1.4mm_P0.4mm | D2, D3, D4, D5 |
| 5 | 10U 10u | C_0603_1608Metric | C1, C2, C9, C16, C19 |
| 14 | 100N 100n | C_0402_1005Metric | C3, C4, C5, C6, C7, C8, C11, C12 +6 |
| 1 | 220N 220n | C_0402_1005Metric | C10 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 6P8 6p8 | C_0402_1005Metric | C13, C14 |
| 2 | 1UF 1uF | C_0402_1005Metric | C17, C18 |
| 2 | 5K1 | R_0402_1005Metric | R1, R2 |
| 2 | 1K | R_0402_1005Metric | R3, R16 |
| 7 | 100K | R_0402_1005Metric | R4, R5, R6, R12, R13, R14, R15 |
| 1 | C25752 12K,1% | R_0402_1005Metric | R7 |
| 9 | 10K | R_0402_1005Metric | R8, R9, R10, R11, R19, R20, R21, R22 +1 |
| 1 | 24K | R_0402_1005Metric | R17 |
| 1 | 47K | R_0402_1005Metric | R18 |
Esp32c3 devboard design files
The KiCad project lives in the tmilkovic51/esp32c3_devboard repository on GitHub; these links point at the commit this page was built from.
Esp32c3 devboard: common questions
What microcontroller does the Esp32c3 devboard use?
The Esp32c3 devboard is built around the ESP32-C3-WROOM-02-SOCKET, from the ESP32 family.
How big is the Esp32c3 devboard PCB?
The Esp32c3 devboard measures 47 × 34 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Esp32c3 devboard?
69 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Esp32c3 devboard design files?
From the tmilkovic51/esp32c3_devboard repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Esp32c3 devboard design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which tmilkovic51 chose for the repository.
Can I test firmware for the Esp32c3 devboard without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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