firmware/variants/esp32/tbeam/platformio.ini

; The 1.0 release of the TBEAM board 
[env:tbeam]
extends = esp32_base
board = ttgo-t-beam
board_level = extra
board_check = true
build_flags = ${esp32_base.build_flags}
  -D TBEAM_V10
  -I variants/esp32/tbeam
  -DBOARD_HAS_PSRAM
  -mfix-esp32-psram-cache-issue
upload_speed = 921600

[env:tbeam-displayshield]
extends = env:tbeam

build_flags =
  ${env:tbeam.build_flags}
  -D USE_ST7796

lib_deps =
  ${env:tbeam.lib_deps}
  # renovate: datasource=github-tags depName=meshtastic-st7796 packageName=meshtastic/st7796
  https://github.com/meshtastic/st7796/archive/1.0.5.zip
  # renovate: datasource=custom.pio depName=lewisxhe-SensorLib packageName=lewisxhe/library/SensorLib
  lewisxhe/SensorLib@0.3.3