Add MeshCore relay_radio firmware for Heltec T114

variants/rak3x72/platformio.ini

@@ -0,0 +1,48 @@
+[rak3x72]
+extends = stm32_base
+board = rak3172
+board_upload.maximum_size = 229376 ; 32kb for FS
+build_flags = ${stm32_base.build_flags}
+  -D RAK_3X72
+  -D RADIO_CLASS=CustomSTM32WLx
+  -D WRAPPER_CLASS=CustomSTM32WLxWrapper
+  -D SPI_INTERFACES_COUNT=0
+  -D RX_BOOSTED_GAIN=true
+;  -D STM32WL_TCXO_VOLTAGE=1.6 ; defaults to 0 if undef
+;  -D LORA_TX_POWER=14 ; Defaults to 22 for HP, 14 is for LP version
+  -I variants/rak3x72
+build_src_filter = ${stm32_base.build_src_filter}
+  +<../variants/rak3x72>
+
+[env:RAK_3x72_repeater]
+extends = rak3x72
+build_flags = ${rak3x72.build_flags}
+  -D ADVERT_NAME='"RAK3x72 Repeater"'
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=50
+build_src_filter = ${rak3x72.build_src_filter}
+  +<../examples/simple_repeater/*.cpp>
+
+[env:RAK_3x72_sensor]
+extends = rak3x72
+build_flags = ${rak3x72.build_flags}
+  -D ADVERT_NAME='"RAK3x72 Sensor"'
+  -D ADMIN_PASSWORD='"password"'
+build_src_filter = ${rak3x72.build_src_filter}
+  +<../examples/simple_sensor>
+
+[env:RAK_3x72_companion_radio_usb]
+extends = rak3x72
+build_flags = ${rak3x72.build_flags}
+;  -D FORMAT_FS=true
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+build_src_filter = ${rak3x72.build_src_filter}
+  +<../examples/companion_radio/*.cpp>
+lib_deps = ${rak3x72.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:RAK_3x72_kiss_modem]
+extends = rak3x72
+build_src_filter = ${rak3x72.build_src_filter}
+  +<../examples/kiss_modem/>