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ESP32 SMD

syamei0·kicad·ESP32_SMD/ESP32_SMD.kicad_pcb

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

About the ESP32 SMD PCB

ESP32 SMD is an open source ESP32 PCB design by syamei0, published on GitHub. It is a 2-layer board measuring 95 × 72 mm, with 112 components from 32 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the NJM2845DL1-33, ATA6561 and CH340K. By type, the board carries 35 resistors, 28 diodes, 27 connectors, 9 capacitors, 4 ICs and 3 switches.

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 SMD, from the project README
From the project README

Main components on the ESP32 SMD

ESP32-WROOM-32ENJM2845DL1-33ATA6561CH340K

ESP32 SMD bill of materials (BOM)

112 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32E
U1
1
NJM2845DL1-33
U2
1
ATA6561
U4
1
CH340K
U5
2
2SC2712
Q1, Q2
1
POWER(5V)
J1
10
CONN_01X02_SOCKET
Conn_01x02_Socket
J2, J5, J6, J7, J8, J11, J12, J13 +2
1
FT234X
J3
2
I2C
J4, J17
1
INPUT_1
J9
1
INPUT_2
J10
6
CONN_01X03_SOCKET
Conn_01x03_Socket
J15, J18, J19, J22, J23, J24
2
CONN_01X15_SOCKET
Conn_01x15_Socket
J16, J20
2
RJ45_SHIELDED
RJ45_Shielded
J25, J27
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J26
1
MF-R050
F1
2
JUMPER_2_OPEN
Jumper_2_Open
JP3, JP4
1
PKM13EPYH4000-A0
LS1
1
SW_NIDEC_CAS-120A1
SW_Nidec_CAS-120A1
SW1
1
BOOT
SW2
Show 12 more
QtyPartRefs
1
EN
SW3
1
LED
D1
27
LED
D2, D3, D4, D5, D6, D7, D8, D9 +19
4
0.1μF
C1, C2, C3, C6
1
2.2μF
C4
1
0.33μF
C5
1
22μF
C7
2
100NF
100nF
C8, C9
2
240Ω
R1, R30
30
10kΩ
R2, R3, R4, R5, R6, R7, R8, R9 +22
2
5.1kΩ
R33, R34
1
120Ω
R37

ESP32 SMD 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 SMD: common questions

What microcontroller does the ESP32 SMD use?

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

How big is the ESP32 SMD PCB?

The ESP32 SMD measures 95 × 72 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32 SMD?

112 components, from 32 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 SMD 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 SMD 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 SMD 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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