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XDuinoRailControl

chatelao·xDuinoRail-Decoder·kicad/xDuinoRailControl/xDuinoRailControl.kicad_pcb

XDuinoRailControl PCB layout, top view — open source ESP32 board by chatelao
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About the XDuinoRailControl PCB

XDuinoRailControl is an open source ESP32 PCB design by chatelao, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 48.3 × 40.6 mm, with 16 components from 13 distinct parts.

Its main chip is the XIAO-ESP32C3, from the ESP32 family. Other key parts include the DRV8874PWPR and Arduino_UNO_R3. By type, the board carries 4 resistors, 3 connectors, 3 capacitors, 2 ICs, 2 diodes and 1 module.

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

From the project

The friendly decoder development plattform for model railroad tinkers.

The friendly decoder development plattform for model railroad tinkers.

The primary tinker formfactor is the "Arduino UNO R3":

The XIAO formfactor may even fit some H0 locomotives, so COMING SOON:

Data - It extracts DCC raw signals from the rails. - It provides raw (RailCom) feedback to the rails.

The data pins are X (input) and Y (output) per default (no soldering needed, but can be reassigned to any other GPIO-Pins.

Main components on the XDuinoRailControl

XIAO-ESP32C3DRV8874PWPRArduino_UNO_R3

XDuinoRailControl bill of materials (BOM)

16 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-ESP32C3
U2
1
DRV8874PWPR
U4
1
Arduino_UNO_R3
A1
1
Barrel_Jack_Switch
J1
1
Screw_Terminal_01x02
J2
1
OLED_SOCKET
J3
1
SW_Nidec_CAS-120A1
SW1
2
LED
D1, D2
2
22nF
C3, C5
1
100nF
C4
2
47k
R1, R2
1
1k5
R3
1
10k
R4

XDuinoRailControl design files

The KiCad project lives in the chatelao/xDuinoRail-Decoder repository on GitHub; these links point at the commit this page was built from.

XDuinoRailControl: common questions

What microcontroller does the XDuinoRailControl use?

The XDuinoRailControl is built around the XIAO-ESP32C3, from the ESP32 family.

How big is the XDuinoRailControl PCB?

The XDuinoRailControl measures 48.3 × 40.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the XDuinoRailControl?

16 components, from 13 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 XDuinoRailControl design files?

From the chatelao/xDuinoRail-Decoder 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 XDuinoRailControl design in my own project?

Yes, under the terms of its AGPL-3.0 license, which chatelao chose for the repository.

Can I test firmware for the XDuinoRailControl 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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