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ESP32

syamei0·kicad·ESP32/ESP32/ESP32.kicad_pcb

ESP32 PCB layout, top view — open source ESP32 board by syamei0

About the ESP32 PCB

ESP32 is an open source ESP32 PCB design by syamei0, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 23 components from 14 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. By type, the board carries 21 connectors, 1 IC and 1 switch.

From the project

⚠注意⚠ リレーの逆起電力対策がされていません。 ダイオードを外付けして使用してください。

⚠注意⚠ リレーの逆起電力対策がされていません。 ダイオードを外付けして使用してください。

入力は12V 出力 12V×7(合計20Aまで) 5V×8(3.3V出力と合わせて合計1.5Aまで) 3.3V×8(合計800mAまで)

仕様 ・圧電スピーカーは0ピン ・CANはTXDが5ピン、RXDが4ピン ・JP3とJP4はcanの終端抵抗 ・上バー付の数字はPWM可 ・白抜き文字は書き込み中プルアップ

ESP32, from the project README
From the project README

Main components on the ESP32

ESP32-WROOM-32E

ESP32 bill of materials (BOM)

23 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32E
ESP32-DEVKITC-32E
U1
1
Conn_01x02_Socket
J1
5
CONN_01X02_SOCKET
Conn_01x02_Socket
J2, J6, J7, J8, J11
1
FT234X
Conn_01x02_Socket
J3
1
I2C
Conn_01x02_Socket
J4
1
CONN_01X02_SOCKET
is2
J5
1
INPUT_1
Conn_01x02_Socket
J9
1
INPUT_2
Conn_01x02_Socket
J10
2
CONN_01X02_SOCKET
Conn_01x03_Socket
J12, J13
2
CONN_01X02_SOCKET
Conn_01x01_Socket
J14, J21
3
CONN_01X03_SOCKET
Conn_01x01_Socket
J15, J18, J19
2
CONN_01X15_SOCKET
Conn_01x01_Socket
J16, J20
1
I2C
Conn_01x01_Socket
J17
1
SW_NIDEC_CAS-120A1
SW_Nidec_CAS-120A1
SW1

ESP32 design files

The KiCad project lives in the syamei0/kicad repository on GitHub; these links point at the commit this page was built from.

ESP32: common questions

What microcontroller does the ESP32 use?

The ESP32 is built around the ESP32-WROOM-32E, from the ESP32 family.

How big is the ESP32 PCB?

The ESP32 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32?

23 components, from 14 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 ESP32 design files?

From the syamei0/kicad 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 ESP32 design in my own project?

The repository has no license, so all rights stay with syamei0. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 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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