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ESP32 OpenLCB IO Board

atanisoft·Esp32OlcbIO·pcb/pcb.kicad_pcb

ESP32 OpenLCB IO Board layout, top view — open source ESP32 board by atanisoft

About the ESP32 OpenLCB IO Board

ESP32 OpenLCB IO Board is an open source ESP32 PCB design by atanisoft, published on GitHub. It is a 4-layer board measuring 61 × 81 mm, with 43 components from 26 distinct parts.

Its main chip is the ESP32-Module, from the ESP32 family. Other key parts include the AP63205WU, AP2114-3.3, LM358 and TJA1051T-3. By type, the board carries 13 capacitors, 8 resistors, 7 connectors, 5 ICs, 5 diodes and 3 switches.

It belongs with the iot & wireless designs in this gallery.

From the project

ESP32 OpenLCB IO Board

The ESP32 OpenLCB IO Board is a basic OpenLCB (LCC) node offering 14 input/output capable pins, and two that are input only. Additionally all IO pins are exposed through two 13 pin headers which allows for extending the functionality of the base board using a daughter board approach.

The ESP32 OpenLCB IO Board can be powered from an external power supply (12V) on J5 connector, or using the OpenLCB (LCC) Bus power on RJ45. To enable powering from the external supply, bridge pins 1 and 2 on JP1. To power from the OpenLCB (LCC) Bus, bridge pins 2 and 3. Note that when using the USB connector on…

ESP32 OpenLCB IO Board, from the project README
From the project README

Main components on the ESP32 OpenLCB IO Board

ESP32-ModuleAP63205WUAP2114-3.3LM358TJA1051T-3

ESP32 OpenLCB IO Board bill of materials (BOM)

43 components, 26 distinct parts.

QtyPartRefs
1
ESP32-Module
U1
1
AP63205WU
U2
1
AP2114-3.3
U3
1
LM358
U5
1
TJA1051T-3
U6
1
LEFT
J1
1
LEFT-EXT
J2
1
RIGHT
J3
1
RIGHT-EXT
J4
1
EXT POWER
J5
2
RJ45
J6, J7
1
VCC SOURCE
JP1
1
Reset
SW1
1
Factory Reset
SW2
1
User
SW3
1
WiFi
D1
1
Activity
D2
1
CAN TX
D3
1
CAN RX
D4
1
NUP2105L
D5
Show 6 more
QtyPartRefs
1
4.7uH
L1
3
10uF
C1, C5, C6
8
100nF
C2, C7, C8, C9, C10, C11, C12, C13
2
22uF
C3, C4
4
160R
R1, R2, R7, R8
4
10k
R3, R4, R5, R6

ESP32 OpenLCB IO Board design files

The KiCad project lives in the atanisoft/Esp32OlcbIO repository on GitHub; these links point at the commit this page was built from.

ESP32 OpenLCB IO Board: common questions

What microcontroller does the ESP32 OpenLCB IO Board use?

The ESP32 OpenLCB IO Board is built around the ESP32-Module, from the ESP32 family.

How big is the ESP32 OpenLCB IO Board?

The ESP32 OpenLCB IO Board measures 61 × 81 mm, has 4 copper layers and is 4.69 mm thick.

How many components are on the ESP32 OpenLCB IO Board?

43 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32 OpenLCB IO Board design files?

From the atanisoft/Esp32OlcbIO repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ESP32 OpenLCB IO Board design in my own project?

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

Can I test firmware for the ESP32 OpenLCB IO Board 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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