HardLabs

Main 2.3

eesakiii·SilverbackPCBs·Goku _ Vegeta/2.3/Main 2.3 - GV2/Main 2.3.kicad_pcb

Main 2.3 PCB layout, top view — open source ESP32 board by eesakiii

About the Main 2.3 PCB

Main 2.3 is an open source ESP32 PCB design by eesakiii, published on GitHub. It is a 2-layer board measuring 214.9 × 206.5 mm, with 34 components from 23 distinct parts.

Its main chip is the ESP32-DEVKITC, from the ESP32 family. Other key parts include the Adafruit_BNO055_STEMMA_QT. By type, the board carries 16 connectors, 7 test points, 5 resistors, 4 ICs and 2 capacitors.

Main components on the Main 2.3

ESP32-DEVKITCAdafruit_BNO055_STEMMA_QT

Main 2.3 bill of materials (BOM)

34 components, 23 distinct parts.

QtyPartRefs
2
MPM3610_3.3V_Buck_Converter_Breakout_-_21V_In_3.3V_Out_at_1.2A
U2, U6
1
ESP32-DEVKITC
U3
1
Adafruit_BNO055_STEMMA_QT
U4
1
JST-XH M1 ENC
J1
1
JST-XH M2 ENC
J2
1
JST-XH M3 ENC
J3
1
JST-XH M4 ENC
J4
3
XT60-M
J5, J7, J8
4
691137710002
J6, J13, J15, J16
1
Line PCB
J9
1
Motor Driver Inputs
J11
1
OpenMV H7
J12
2
Conn_01x19_Male
J14, J17
1
TestPoint - 3V3
TP1
1
TestPoint - SCL
TP2
1
TestPoint - SDA
TP3
1
TestPoint - TX
TP4
1
TestPoint - RX
TP5
1
TestPoint - GND
TP6
1
LOGIC_SWITCH
TP18
Show 3 more
QtyPartRefs
2
10UF
C2, C3
2
100K
R1, R12
3
10K
R2, R13, R14

Main 2.3 design files

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

Main 2.3: common questions

What microcontroller does the Main 2.3 use?

The Main 2.3 is built around the ESP32-DEVKITC, from the ESP32 family.

How big is the Main 2.3 PCB?

The Main 2.3 measures 214.9 × 206.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Main 2.3?

34 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Main 2.3 design files?

From the eesakiii/SilverbackPCBs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Main 2.3 design in my own project?

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

Can I test firmware for the Main 2.3 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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