UK train and weather Display

Enhanced version of trainsAccess Display

Displays current departures from a particular UK rail station Displays 5 day weather forecast for worldide cities

This replaces trainsAccess If you want trains only usage set the line in trainsWeatherConfig.txt for the weather URL to null If you want weather only usage set the line in trainsWeatherConfig.txt for the trains URL to null AND in the ino file change the dataMode = 0 to dataMode = 1

Features

Accesses National Rail station database to get departure times for a specified station
Can filter list to show trains going to specific destination
Accesses openWeather database to get 5 day forecast
ESP8266 based processing, hooks onto local wifi network
Battery powered (rechargeable LIPO) with inbuilt charger
Very low quiescent current (< 20uA) for long battery life
320 x 240 LCD display with 3 control buttons
Normally the module sleeps after a time but can be turned into a non sleep mode for checking and configuration
Configuration data in a file to allow set up of major parameters
Web based file access
Browser access to view data and edit config
Software can be updated via web interface
Low cost
3D printed enclosure

Library details

Uses standard libraries plus TFT_eSPI for fast display control
TFT_eSPI can be loaded from Arduino library manager
Modify following in User_Setup.h in TFT_esp library to reflect actual pin usage
#define TFT_CS PIN_D8 // Chip select control pin D8
#define TFT_DC PIN_D2 // Data Command control pin
#define TFT_RST PIN_D4 // Reset pin (could connect to NodeMCU RST, see next line)

Set up

Use BaseSuoort library https://github.com/roberttidey/BaseSupport
Modify BaseConfig.h password fields to suit personal needs
Uncomment FASTCONNECT in BaseConfig.h as required
Compile with Arduino IDE. Memory should be set to 2MB firmware / 2MB Spiffs to allow OTA updates
Serial upload
Use the WifiManager AP to select and set up wifi connection
Register with National Rail and get access token for OpenLDBWS (see link below)
Register with openweather.org and get access token
Modify trainsWeatherConfig.txt
- Change Access tokens
- Change codes for local station (see link below)
- Change codes for destination or leave blank for all destinations
- Change city codes for weather
- Change refresh and sleep settings as required
Upload the files in data folder using http:ip/upload
Further file access can use http:ip/edit
For software updating export a binary and then access http:/ip/firmware
Note tha thte site fingerprint for https access may change if the security certificate of the National rail site or weather site is renewed. See below, You can also leave this line blank to skip the certificate check.

Usage

Middle button is used to turn unit on. It will automatically get current times and refresh at the specified interval
Short press of Middle button toggles between train and weather
It will sleep automatically after the configured time if enabled
Sleep may be manually forced by a long press of the middle button
If there are more listings than the display size then a short press of the top and bottom buttons will page up and down through the screens.
Multiple station, destination codes, and weather cities (up to 4) may be put in the config file (comma separated). A long press of the top bottom will cycle through these combinations.

URLS

ip/firmware (update firmware)
ip/getData (returns current data in CSV format)
ip/setMode?mode=n (sets mode n=1 trains, n=2 weather)
ip Gives Browser access to train or weather data and config

Certificate fingerprints

To get the fingerprints, access the raw site url from a browser
- https://lite.realtime.nationalrail.co.uk/OpenLDBWS/ldb11.asmx
- https://api.openweathermap.org/data/2.5/forecast
View site information (icon to the left of the url)
Click connection is secure/certificate is valid/Details
Click export, choose a location to stotr certificate file.
generate fingerprint using openssl
- For windows open cmd window, cd yo folder where certificate files are
- "C:\Program Files\Git\usr\bin\openssl" x509 -fingerprint -noout -in [certificateMame].crt
Copy and paste fingerprints into the config file

Links

Instructables https://www.instructables.com/id/UK-Train-Display/

Thingiverse Enclosure https://www.thingiverse.com/thing:3843509

National Rail registration https://www.nationalrail.co.uk/100296.aspx

Station codes https://www.nationalrail.co.uk/stations_destinations/48541.aspx

roberttidey / trainsWeatherAccess