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ESP8266ScheduleDisplay

A esp8266 and ST7735 (1.8 inch 120x160 color tft) based schedule display with sorting, a simple web frontend, a custom animation and more

Example Image

Image

Wiring

- D1: TFT_CS
- D2: TFT_RST
- D3: TFT_DC (AKA TFT A0)
- D5: TFT_SCK
- D7: TFT_SDA
- D8: TFT_LED
- 5V: TFT_VCC
- GND: TFT_GND

Back of the TFT:

Image

Features

  • Display schedule
  • Sort schedule by date
  • Display a animation for fun
  • Web frontend to change the schedule
  • Web frontend with MDNS so you can access it via http://scheduler.local
  • Togglable backlight (via web frontend)

Flashing

  • Requirements

    • Arduino IDE
    • ESP8266 Board Package
      • Add via File > Preferences > Additional Boards Manager URLs and add http://arduino.esp8266.com/stable/package_esp8266com_index.json
    • ST7735 Library
      • Add via Sketch > Include Library > Manage Libraries... and search for ST7735
    • NTP Library
      • Add via Sketch > Include Library > Manage Libraries... and search for NTP Downloadable from (https://github.com/sstaub/NTP)
    • ESP8266WebServer Library
      • Add via Sketch > Include Library > Manage Libraries... and search for ESP8266WebServer

  • Hardware

    • ESP8266 (I used a wemos D1 mini (4MB))
    • ST7735 (1.8 inch 120x160 color tft sold at adafruit, sparkfun, all other major electronic providers)
    • Wires

  • Flashing

    • Connect the esp8266 to your computer
    • Open the ESP8266ScheduleDisplay.ino file in the Arduino IDE
    • Select the correct board and port
    • Flash the sketch
    • Note You have to switch the IRAM setting in the board. See image below Image Make sure 16KB cache+48kB IRAM (shared) is selected

Changing the Animation

  • Animations are stored in img.h as 1d array of uint16_t.
  • The first 2 bytes are the width and height of the image
  • The rest is the image data in RGB565 format
  • There is a script in the tools folder that can convert images to the correct format from BMP. However, make sure your images are already the correct size. The script will not resize the image for you.
  • Add your proper sized bmp files to the images directory and run convertToPixel.py
  • Copy the output of the script into the img.h file
  • Modify the switch statement at the top of void loop() in order to reflect the new animation's frames