Bus Schedule Display

Purpose

Show in realtime the minutes remaining of the upcoming buses at a given stop using the NextBus API.
Project page: https://hackaday.io/project/116394-bus-schedule-display

Hardware

ESP8266
ST7735S 1.8 Inch SPI TFT Display Push button (Optional) Transistor (Optional)

Features

• Call NextBus API, parse and display the predicted arrival times
• Web page to configure:
  • Bus agency and stop id
  • Shown time interval (hide buses more that X minutes away)
  • Ignored bus lines (Do not show their schedule)
  • Text color depending on the time remaining (Like green when smaller than 10min.)
• Auto wifi config (go into hotspot mode when no wifi config)
• Web and OTA updates enabled

Wiring

    Display                ESP
-----------------------------------------
CS   (SD card) <=>
MOSI (SD card) <=> 
MISO (SD card) <=>
SCK  (SD card) <=>
CS             <=> CS   GPIO15 (configurable)
SCL            <=> CLK  GPIO14
SDA            <=> MOSI GPIO13
A0             <=> DC   GPIO4  (configurable)
RESET          <=>      GPIO5  (configurable)

See build_flags in platformio.ini for configurable pins.

Optional to turn the lcd backlight on/off    
-----------------------------------------
Push button    <=>      GPIO2
Transistor     <=>      GPIO16

Installation

Use https://platformio.org/ to build and depoy the code.

External libraries

https://github.com/tzapu/WiFiManager
https://github.com/Bodmer/TFT_eSPI
https://github.com/arduino-libraries/NTPClient.git
https://github.com/bblanchon/ArduinoJson.git
https://github.com/Links2004/arduinoWebSockets.git

External API

https://www.nextbus.com/xmlFeedDocs/NextBusXMLFeed.pdf