diff --git a/platformio.ini b/platformio.ini
index ebe4d79a..aff4e4f5 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -59,14 +59,34 @@ lib_ignore =
     ESP32NetBIOS
     ESP32SSPD
 
-[env:esp01s]
+[env:esp01s_160mhz]
+platform = espressif8266@2.2.0
+platform_packages = toolchain-xtensa@2.40802.200502
+board = esp01_1m
+framework = arduino
+monitor_speed = 115200
+board_build.f_cpu = 160000000L
+board_build.f_flash = 40000000L
+board_build.flash_mode = dio
+board_build.ldscript = eagle.flash.1m256.ld
+upload_resetmethod = nodemcu
+build_flags =
+    -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+    -DNONOSDK221=1
+    -DNDEBUG
+    -DVTABLES_IN_FLASH
+upload_speed = 115200
+lib_ignore =
+    AsyncTCP
+    ESP32NetBIOS
+    ESP32SSPD
+
+[env:esp01s_80mhz]
 platform = espressif8266@2.2.0
 platform_packages = toolchain-xtensa@2.40802.200502
 board = esp01_1m
 framework = arduino
 monitor_speed = 115200
-;board_build.f_cpu = 160000000L
-;board_build.f_flash = 40000000L
 board_build.flash_mode = dio
 board_build.ldscript = eagle.flash.1m256.ld
 upload_resetmethod = nodemcu