basic init of the Corvus TFT display works

platformio.ini

@@ -9,7 +9,7 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [platformio]
-default_envs = tbeam # lora-relay-v1
+default_envs = lora-relay-v1
 
 [common]
 ; common is not currently used
@@ -220,7 +220,17 @@ lib_deps =
 extends = nrf52_base
 board = lora-relay-v1
 # add our variants files to the include and src paths
+# define build flags for the TFT_eSPI library
 build_flags = ${nrf52_base.build_flags} -Ivariants/lora_relay_v1
+  -DUSER_SETUP_LOADED
+  -DTFT_WIDTH=80
+  -DTFT_HEIGHT=160
+  -DST7735_GREENTAB160x80
+  -DST7735_DRIVER
+  -DTFT_CS=ST7735_CS
+  -DTFT_DC=ST7735_RS
+  -DTFT_RST=ST7735_RESET
+  -DSPI_FREQUENCY=27000000
 src_filter = ${nrf52_base.src_filter} +<../variants/lora_relay_v1>
 lib_deps = 
   ${env.lib_deps}