Using this board:
http://www.lilygo.cn/claprod_view.aspx?TypeId=21&Id=958
https://github.com/LilyGO/TTGO-LORA32-V2.0
ESP32: https://github.com/espressif/arduino-esp32
LoRa: https://github.com/sandeepmistry/arduino-LoRa
OLED: https://github.com/ThingPulse/esp8266-oled-ssd1306#text-operations