Those upgrades include addition of a GPS module, a case ... and LILYGO says users can program the device using Arduino, Micropython, and PlatformIO-IDE. More documentation is also available ...

It’s a portable device with a 2.33 inch widescreen display, a thumb keyboard for tapping out messages, and support for LoRa, NFC, and GPS (GNSS ... the device using Arduino-IDE, VS Code, ...