HardLabs

Espcnc

m24h·espcnc·hardware/espcnc.kicad_pcb

Espcnc PCB layout, top view — open source ESP32 board by m24h

About the Espcnc PCB

Espcnc is an open source ESP32 PCB design by m24h, published on GitHub. It is a 2-layer board measuring 90 × 45 mm, with 60 components from 24 distinct parts.

Its main chip is the ESP32-WROVER-WROOM, from the ESP32 family. Other key parts include the OLED, CH340G and AP1117-33. By type, the board carries 28 resistors, 12 capacitors, 7 diodes, 4 ICs, 4 transistors and 3 connectors.

It belongs with the robotics & motion and audio designs in this gallery.

From the project

A 3D printer/CNC controller using ESP32 with its DMA/FIFO bufferd I2S port

A 3D printer or CNC controller using ESP32 module Using DMA/FIFO buffered I2S port to output step pulses

Main components on the Espcnc

ESP32-WROVER-WROOMOLEDCH340GAP1117-33

Espcnc bill of materials (BOM)

60 components, 24 distinct parts.

QtyPartRefs
1
ESP32-WROVER-WROOM
U1
1
OLED
U2
1
CH340G
U3
1
AP1117-33
U4
2
2N3906
Q1, Q2
2
2N3904
Q3, Q4
1
SD_Card
J1
1
FPC16
J2
1
USB_B_Micro
J3
1
Buzzer
BZ1
1
RESET/STOP
SW1
1
LED
D1
6
SS12
D2, D3, D4, D5, D6, D7
8
0.1
C1, C2, C5, C6, C7, C8, C10, C12
3
10
C3, C9, C11
1
1
C4
2
2.2k
R1, R2
5
47k
R3, R9, R11, R15, R16
8
10k
R4, R6, R7, R8, R12, R13, R20, R21
3
1M
R5, R10, R14
Show 4 more
QtyPartRefs
1
47
R17
1
499
R18
1
1k
R19
7
15
R22, R23, R24, R25, R26, R27, R28

Espcnc design files

The KiCad project lives in the m24h/espcnc repository on GitHub; these links point at the commit this page was built from.

Espcnc: common questions

What microcontroller does the Espcnc use?

The Espcnc is built around the ESP32-WROVER-WROOM, from the ESP32 family.

How big is the Espcnc PCB?

The Espcnc measures 90 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Espcnc?

60 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Espcnc design files?

From the m24h/espcnc repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Espcnc design in my own project?

The repository has no license, so all rights stay with m24h. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Espcnc 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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