MKS Robin Nano board support (#14363)

platformio.ini

@@ -377,7 +377,7 @@ lib_ignore    = c1921b4
   U8glib-HAL
 
 #
-# MKS Robin nano (STM32F103VET6)
+# MKS Robin Mini (STM32F103VET6)
 #
 [env:mks_robin_mini]
 platform      = ststm32
@@ -397,6 +397,27 @@ lib_ignore    = c1921b4
   libf3e
   TMC26XStepper
 
+#
+# MKS Robin Nano (STM32F103VET6)
+#
+[env:mks_robin_nano]
+platform      = ststm32
+framework     = arduino
+board         = genericSTM32F103VE
+extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin_nano.py
+build_flags   = !python Marlin/src/HAL/HAL_STM32F1/STM32F1_flag_script.py
+  ${common.build_flags} -std=gnu++14
+build_unflags = -std=gnu++11
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
+lib_deps      = ${common.lib_deps}
+lib_ignore    = c1921b4
+  libf3c
+  lib066
+  Adafruit NeoPixel_ID28
+  Adafruit NeoPixel
+  libf3e
+  TMC26XStepper
+
 #
 # JGAurora A5S A1 (STM32F103ZET6)
 #