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Light-Rail

nonik0·Light-Rail·hardware/kicad8.0/light_rail.kicad_pcb

Light-Rail PCB layout, top view — open source AVR/Arduino board by nonik0
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About the Light-Rail PCB

Light-Rail is an open source AVR/Arduino PCB design by nonik0, published on GitHub. It is a 4-layer board measuring 73.4 × 100.5 mm, with 209 components from 46 distinct parts.

Its main chip is the ATMEGA32U4-AU, from the AVR/Arduino family. Other key parts include the IS31FL3731-SALS2, AS1115BSST, MIC5219-3.3YM5 and ACSC02-41SURKWA-F01. By type, the board carries 148 diodes, 16 capacitors, 16 resistors, 14 switches, 7 ICs and 3 connectors.

From the project

Light Rail is a minimalist, interactive PCB game that simulates trains traveling along tracks, picking up and delivering cargo from platforms. The track is composed of yellow LEDs arranged in lines, which illuminate sequentially to create the effect of trains moving along the tra

Light Rail is a minimalist, interactive PCB game that simulates trains traveling along tracks, picking up and delivering cargo from platforms. The track is composed of yellow LEDs arranged in lines, which illuminate sequentially to create the effect of trains moving along the tracks. Next to each of the eight forks and crosses in the track is a button to switch its state. The board also has a three-character seven-segment display for showing the game status and/or score and four more buttons underneath the track for gameplay control. Light Rail can be powered with two LIR2032 batteries or via…

Light-Rail, from the project README
From the project README

Main components on the Light-Rail

ATMEGA32U4-AUIS31FL3731-SALS2AS1115BSSTMIC5219-3.3YM5ACSC02-41SURKWA-F01

Light-Rail bill of materials (BOM)

209 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-AU
ATmega32U4-A
Microchip Technology
U1
1
IS31FL3731-SALS2
IS31FL3731-SA
Lumissil Microsystems
U2
1
AS1115BSST
AS1115-BSST
ams-OSRAM USA INC.
U3
1
MIC5219-3.3YM5
Microchip Technology
U4
3
ACSC02-41SURKWA-F01
KCSC02-105
Kingbright
U5, U6, U7
1
ECS-2033-080-BN
ECS-2520MV-xxx-xx
ECS Inc.
X1
1
USB4215-03-A
USB_C_Receptacle_USB2.0_16P
GCT
J1
1
Conn_01x04_Pin
N/A
J2
1
AVR-ISP-6
N/A
J3
2
Battery_Cell
N/A
BT1, BT2
1
PKLCS1212E4001-R1
Buzzer
Murata Electronics
BZ1
1
SMD0603B035TF
Polyfuse
YAGEO
F1
12
SW_Push
C&K
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +4
1
SKRKAGE020
SW_Push
C&K
SW13
1
SW_SPST
N/A
SW14
4
LTST-C170YKT
LED
Lite-On Inc.
D1, D76, D114, D135
24
LTST-C171KRKT
LED
Lite-On Inc.
D2, D6, D7, D12, D14, D20, D26, D33 +16
5
LED
D3, D11, D38, D46, D67
7
LED
D4, D72, D99, D102, D109, D127, D142
16
LED
D5, D15, D22, D25, D37, D42, D44, D45 +8
Show 26 more
QtyPartRefs
9
LED
D8, D30, D52, D56, D65, D74, D98, D129 +1
54
LED
D9, D10, D16, D17, D18, D19, D21, D23 +46
1
LTST-C170YKT
LED
Lite-On Inc.
D13
7
LED
D24, D40, D51, D55, D73, D126, D131
1
LED
D29
3
LED
D31, D80, D87
3
LTST-C170YKT
LED
Lite-On Inc.
D35, D90, D91
1
LTST-C170YKT
LED
Lite-On Inc.
D77
4
LED
D81, D95, D107, D119
1
LTST-C170YKT
LED
Lite-On Inc.
D93
3
LED
D110, D111, D112
1
LTST-C170YKT
LED
Lite-On Inc.
D113
1
SD0805S020S1R0
D_Schottky
KYOCERA AVX
D145
3
CES10402V05B0DG
ESD9B5.0ST5G
INPAQ Technology Co., Ltd
D146, D147, D148
2
CL21C220JBANFNC
22p
Samsung Electro-Mechanics
C1, C2
4
CL21B104KBCNNNC
0.1u
Samsung Electro-Mechanics
C3, C7, C9, C11
3
10u
C4, C5, C6
1
CL21B224KAFNFNE
0.22u
Samsung Electro-Mechanics
C8
3
CL21A106KOQNNNG
10u
Samsung Electro-Mechanics
C10, C12, C15
2
CL21B105KPFNNNE
1u
Samsung Electro-Mechanics
C13, C14
1
CL21X226MRQNNNE
22u
Samsung Electro-Mechanics
C16
2
CRCW080522R0JNEA
22
Vishay Dale
R1, R2
9
CRCW080520K0FKEA
20K
Vishay Dale
R3, R4, R5, R6, R7, R8, R9, R10 +1
2
CRCW080510K0FKEA
10K
Vishay Dale
R12, R13
2
CRCW08055K10JNEA
5.1K
Vishay Dale
R14, R15
1
CRCW08051K00FKEA
1K
Vishay Dale
R16

Light-Rail design files

The KiCad project lives in the nonik0/Light-Rail repository on GitHub; these links point at the commit this page was built from.

Light-Rail: common questions

What microcontroller does the Light-Rail use?

The Light-Rail is built around the ATMEGA32U4-AU, from the AVR/Arduino family.

How big is the Light-Rail PCB?

The Light-Rail measures 73.4 × 100.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Light-Rail?

209 components, from 46 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 Light-Rail design files?

From the nonik0/Light-Rail 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 Light-Rail design in my own project?

The repository has no license, so all rights stay with nonik0. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Light-Rail 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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