* refactored platformio.ini, breaking up into variants/*.ini files

variants/techo/platformio.ini

@@ -0,0 +1,72 @@
+[nrf52840_techo]
+extends = nrf52_base
+platform_packages = framework-arduinoadafruitnrf52
+build_flags = ${nrf52_base.build_flags}
+  -I src/helpers/nrf52
+  -I lib/nrf52/s140_nrf52_6.1.1_API/include
+  -I lib/nrf52/s140_nrf52_6.1.1_API/include/nrf52
+lib_deps =
+  ${nrf52_base.lib_deps}
+  rweather/Crypto @ ^0.4.0
+
+[LilyGo_Techo]
+extends = nrf52840_techo
+board = t-echo
+board_build.ldscript = boards/nrf52840_s140_v6.ld
+build_flags = ${nrf52840_techo.build_flags}
+  -Ivariants/techo
+  -DLILYGO_TECHO
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D SX126X_CURRENT_LIMIT=130
+  -D SX126X_RX_BOOSTED_GAIN=1
+build_src_filter = ${nrf52840_techo.build_src_filter}
+  +<helpers/*.cpp>
+  +<helpers/nrf52/TechoBoard.cpp>
+  +<../variants/techo>
+debug_tool = jlink
+upload_protocol = nrfutil
+
+[env:LilyGo_T-Echo_repeater]
+extends = LilyGo_Techo
+build_src_filter = ${LilyGo_Techo.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${LilyGo_Techo.build_flags}
+  -D ADVERT_NAME='"T-Echo Repeater"'
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD='"password"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:LilyGo_T-Echo_room_server]
+extends = LilyGo_Techo
+build_src_filter = ${LilyGo_Techo.build_src_filter} +<../examples/simple_room_server/main.cpp>
+build_flags =
+  ${LilyGo_Techo.build_flags}
+  -D ADVERT_NAME='"T-Echo Room"'
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD='"password"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:LilyGo_T-Echo_companion_radio_ble]
+extends = LilyGo_Techo
+build_flags =
+  ${LilyGo_Techo.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${LilyGo_Techo.build_src_filter}
+  +<helpers/nrf52/*.cpp>
+  +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${LilyGo_Techo.lib_deps}
+  densaugeo/base64 @ ~1.4.0