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ESP32C3DevBoard

74th·esp32-dev-boards·ESP32-C3-WROOM-02/ESP32-C3-WROOM-02.kicad_pcb

ESP32C3DevBoard PCB layout, top view — open source ESP32 board by 74th
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About the ESP32C3DevBoard PCB

ESP32C3DevBoard is an open source ESP32 PCB design by 74th, published on GitHub under the MIT license. It is a 2-layer board measuring 25.4 × 29.2 mm, with 24 components from 21 distinct parts.

Its main chip is the ESP32-C3-MINI-1, from the ESP32 family. Other key parts include the AMS1117-3.3. By type, the board carries 7 capacitors, 7 resistors, 2 ICs, 2 connectors, 2 switches and 2 diodes.

It belongs with the dev boards & breakouts and iot & wireless designs in this gallery.

From the project

ESP32 Dev Boards PCB

- 10 ピンブレッドボードに挿しても、左右 1 ピン空いている - ESP-Prog の USB シリアル変換のボックスピンヘッダを持つ - USB Type-C をもつ

BOOTH でモジュール付きキットを販売中です。 https://74th.booth.pm/items/4378573

- GPIO20、GPIO21のUARTのU0RXD/U0TXDのシルクが逆になっていたのを修正

UARTのTX0/RX0 のシルクの表示が逆になっています。"T"と書かれたピンがRX0、"R"と書かれたピンがTX0です。

- USB DM/DP にダンピング抵抗を追加 - 電源にダイオードを追加 - ESP-C3-DevKitC-02 互換の配置を止めた

- ESP32-C3-WROOM-02 は非常に熱に弱いモジュールです。ボード裏面にはサーマルパッドをはんだづけするための穴が空いていますが、熱を与えすぎに注意してください。BOOTH のキットでは熱伝導テープを添付しています。カットして、モジュールに貼り付けて、青いテープ、透明テープを剥がして利用ください。モジュールが浮きすぎないように押さえつけて利用ください。

ESP32C3DevBoard, from the project README
From the project README

Main components on the ESP32C3DevBoard

ESP32-C3-MINI-1AMS1117-3.3

ESP32C3DevBoard bill of materials (BOM)

24 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-MINI-1
ESP32-C3-WROOM-02
U1
1
AMS1117-3.3
U2
1
ESP-Prog-ProgramCOM_RECV
J1
1
USB2.0_C
J2
2
Pin_10
CH1, CH2
2
SKRPABE010
SW_Push
SW1, SW2
1
LED
D1
1
PMEG2010ER,115
D2
2
10U
100n
C1, C7
1
10U
10u
C2
1
100N
1u
C3
1
100N
100n
C4
1
10u
C5
1
100N
10u
C6
1
5.1K
10k
R1
1
10K
10
R2
1
10K
10k
R3
1
5.1K
10
R4
1
10K
1k
R5
1
5.1K
5.1k
R6
Show 1 more
QtyPartRefs
1
5.1k
R7

ESP32C3DevBoard design files

The KiCad project lives in the 74th/esp32-dev-boards repository on GitHub; these links point at the commit this page was built from.

ESP32C3DevBoard: common questions

What microcontroller does the ESP32C3DevBoard use?

The ESP32C3DevBoard is built around the ESP32-C3-MINI-1, from the ESP32 family.

How big is the ESP32C3DevBoard PCB?

The ESP32C3DevBoard measures 25.4 × 29.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32C3DevBoard?

24 components, from 21 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 ESP32C3DevBoard design files?

From the 74th/esp32-dev-boards 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 ESP32C3DevBoard design in my own project?

Yes, under the terms of its MIT license, which 74th chose for the repository.

Can I test firmware for the ESP32C3DevBoard 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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