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Helsinki live train map

HekiNav·helsinki-live-train-map·PCB/Helsinki-LED-Train-Map.kicad_pcb

Helsinki live train map PCB layout, top view — open source ESP32 board by HekiNav

About the Helsinki live train map PCB

Helsinki live train map is an open source ESP32 PCB design by HekiNav, published on GitHub under the MIT license. It is a 2-layer board measuring 249 × 71.5 mm, with 398 components from 30 distinct parts.

Its main chip is the ESP32-C3FH4, from the ESP32 family. Other key parts include the XC6206P332MR, Connector, USB-TYPE-C-16P and SN74LVC4245APWR. By type, the board carries 300 diodes, 60 capacitors, 22 resistors, 5 ICs, 4 switches and 3 inductors.

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

From the project

A real-time PCB map of the Helsinki Region train network, powered by an ESP32-C3 microcontroller. Train movements are displayed using addressable RGB LEDs, with live data fetched over Wi-Fi.

A real-time PCB map of the Helsinki Region train network, powered by an ESP32-C3 microcontroller. Train movements are displayed using addressable RGB LEDs, with live data fetched over Wi-Fi.

- Helsinki Live LED Train Map - Table of Contents - Features - Hardware - Design - Software / Firmware - Getting Started - Web Installer - Web Simulator - Stand - Server - Links - Contributing - License

Helsinki live train map, from the project README
From the project README

Main components on the Helsinki live train map

XC6206P332MRConnector, USB-TYPE-C-16PESP32-C3FH4SN74LVC4245APWR

Helsinki live train map bill of materials (BOM)

398 components, 30 distinct parts.

QtyPartRefs
1
XC6206P332MR
Torex Semicon
U1
2
Connector, USB-TYPE-C-16P
DEALON
U2, U4
1
ESP32-C3FH4
Espressif Systems
U3
1
SN74LVC4245APWR
Texas Instruments
U5
1
HL3415A
hongjiacheng
Q1
1
MMBT3904
hongjiacheng
Q2
1
40MHz, 15pF
YXC Crystal Oscillators
X1
1
Polyfuse, 2A
F1
4
Tactile Button, 160gf
XKB Connectivity
S1, S2, S3, S4
2
SS54
MDD（Microdiode Electronics）
D1, D5
3
Red
Foshan NationStar Optoelectronics
D2, D7, D8
2
MM1W5V6
hongjiacheng
D3, D6
1
MMSZ5227B
hongjiacheng
D4
3
Green
Hubei KENTO Elec
D9, D10, D11
1
H3V3U10B
hongjiacheng
D12
288
WS2812B
XINGLIGHT
D13, D14, D15, D16, D17, D18, D19, D20 +280
2
2.7nH
Murata Electronics
L1, L3
1
15nH,300mA
Sunlord
L2
1
10uF
AVX
C1
52
1uF
Samsung Electro-Mechanics
C2, C3, C5, C6, C7, C8, C9, C10 +44
Show 10 more
QtyPartRefs
2
100uF
AVX
C4, C21
1
100nF
Samsung Electro-Mechanics
C15
2
27pF
FH(Guangdong Fenghua Advanced Tech)
C17, C18
2
1.5pF
FH(Guangdong Fenghua Advanced Tech)
C23, C24
5
10kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R4, R5, R6, R14
4
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R2, R3, R10, R11
7
100kΩ
UNI-ROYAL(Uniroyal Elec)
R7, R12, R16, R20, R21, R22, R23
2
510Ω
UNI-ROYAL(Uniroyal Elec)
R9, R13
2
100Ω
UNI-ROYAL(Uniroyal Elec)
R15, R19
2
15kΩ
UNI-ROYAL(Uniroyal Elec)
R17, R18

Helsinki live train map design files

The KiCad project lives in the HekiNav/helsinki-live-train-map repository on GitHub; these links point at the commit this page was built from.

Helsinki live train map: common questions

What microcontroller does the Helsinki live train map use?

The Helsinki live train map is built around the ESP32-C3FH4, from the ESP32 family.

How big is the Helsinki live train map PCB?

The Helsinki live train map measures 249 × 71.5 mm, has 2 copper layers and is 0.9154 mm thick.

How many components are on the Helsinki live train map?

398 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the Helsinki live train map design files?

From the HekiNav/helsinki-live-train-map repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Helsinki live train map design in my own project?

Yes, under the terms of its MIT license, which HekiNav chose for the repository.

Can I test firmware for the Helsinki live train map 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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