diff --git a/platformio.ini b/platformio.ini
index 74691c38d..eefb038e0 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -27,7 +27,8 @@ src_dir = sonoff
 ;env_default = sonoff-IT
 ;env_default = sonoff-NL
 ;env_default = sonoff-PL
-;env_default = sonoff-PT
+;env_default = sonoff-PT_PT
+;env_default = sonoff-PT_BR
 ;env_default = sonoff-RU
 ;env_default = sonoff-TW
 
@@ -74,8 +75,7 @@ upload_speed = 115200
 upload_resetmethod = nodemcu
 upload_port = COM5
 
-;command to erase flash on command line:
-;                      esptool.py --port COM5 erase_flash
+;NOTE - command to erase flash from windows console:         esptool.py --port COM18 erase_flash
 
 ; *** Upload file to OTA server using SCP
 ;upload_port = user@host:/path
@@ -282,7 +282,7 @@ upload_speed = ${common.upload_speed}
 upload_port = ${common.upload_port}
 extra_scripts = ${common.extra_scripts}
 
-[env:sonoff-PT]
+[env:sonoff-PT_PT]
 platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
@@ -294,6 +294,18 @@ upload_speed = ${common.upload_speed}
 upload_port = ${common.upload_port}
 extra_scripts = ${common.extra_scripts}
 
+[env:sonoff-PT_BR]
+platform = ${common.platform}
+framework = ${common.framework}
+board = ${common.board}
+board_flash_mode = ${common.board_flash_mode}
+build_unflags = ${common.build_unflags}
+build_flags = ${common.build_flags} -DMY_LANGUAGE=pt-BR
+monitor_baud = ${common.monitor_baud}
+upload_speed = ${common.upload_speed}
+upload_port = ${common.upload_port}
+extra_scripts = ${common.extra_scripts}
+
 [env:sonoff-RU]
 platform = ${common.platform}
 framework = ${common.framework}