HardLabs

XDuinoRailSwitch

chatelao·xDuinoRail-Decoder·kicad/xDuinoRailShield/xDuinoRailSwitch.kicad_pcb

XDuinoRailSwitch PCB layout, top view — open source AVR/Arduino board by chatelao
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About the XDuinoRailSwitch PCB

XDuinoRailSwitch is an open source AVR/Arduino PCB design by chatelao, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 59.1 × 50.6 mm, with 31 components from 12 distinct parts.

Its main chip is the Arduino_Nano_Every, from the AVR/Arduino family. Other key parts include the ULN2003 and HT7533-1. By type, the board carries 8 ICs, 8 connectors, 5 resistors, 4 transistors, 4 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 XDuinoRailSwitch

ULN2003HT7533-1Arduino_Nano_Every

XDuinoRailSwitch bill of materials (BOM)

31 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
7
ULN2003
U401, U402, U403, U404, U405, U406, U407
1
HT7533-1
U701
1
Arduino_Nano_Every
A302
2
S8050
Q401, Q404
2
S8550
Q402, Q403
7
Conn_01x03
J601, J602, J603, J604, J605, J606, J607
1
Conn_01x02
J608
1
J_EnableRailcom
JP401
4
SS54
D501, D502, D503, D504
2
220R
10k
R402, R403
2
10K
10R
R404, R405
1
220R
10R
R406

XDuinoRailSwitch 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.

XDuinoRailSwitch: common questions

What microcontroller does the XDuinoRailSwitch use?

The XDuinoRailSwitch is built around the Arduino_Nano_Every, from the AVR/Arduino family.

How big is the XDuinoRailSwitch PCB?

The XDuinoRailSwitch measures 59.1 × 50.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the XDuinoRailSwitch?

31 components, from 12 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 XDuinoRailSwitch 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 XDuinoRailSwitch 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 XDuinoRailSwitch without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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