LG_Mini_EPD (LILYGO_T5_V102)

Simple digital clock example with the LilyGo ESP32 mini-EPD display (LILYGO_T5_V102).

It uses SNTP to get the time and configures the correct timezone.

I used the "partial_update" example sketch as a starting point.

The Wifi/SNTP/TZ configuration is read from a file "config.txt" on the SD card if present and copied to NVS preferences.

This config file consists of 4 lines with:

• wifi ssid
• wifi password
• the ntp server
• the timezone string

So the first time you run the program it needs a valid config.txt file in the SD card slot.

If no SD card is present the Wifi/NTP/TZ configuration is read from the NVS preferences that were previously copied from the SD card.

An example config.txt is provided.

Arduino config (vscode)

Board: ESP32-PICO-D4

C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\cores\\esp32
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\variants\\pico32

Libraries

C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\FS\\src
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\Preferences\\src
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\SD\\src
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\SPI\\src
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\Wire\\src
C:\\Users\\%USER%\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\2.0.7\\libraries\\WiFi\\src"
X:\\Documents\\Arduino\\libraries\\GxEPD\\src
X:\\Documents\\Arduino\\libraries\\Adafruit_GFX_Library
X:\\Documents\\Arduino\\libraries\\Adafruit_BusIO

Intellisense

For intellisense default (not the tagparser) to work reliably I found that I have to:

• edit c_cpp_properties.json and
  • change gcc-x64 to gcc-x86
  • change c11 to c17 and c++11 to gnu++17
• prevent regenerating intellisense by disabling it in arduino.json

If you add headers you have to enable/regenerate the intellisense and apply these changes again.