5 units working, not synchronized in time or transmissions, that is for later Exercise

exercises/01_lora_ascii_pingpong/platformio.ini

@@ -3,7 +3,7 @@
 ; $HeadURL$
 
 [platformio]
-default_envs = node_a
+default_envs = amy
 
 [env]
 platform = espressif32
@@ -26,12 +26,32 @@ build_flags =
   -D ARDUINO_USB_MODE=1
   -D ARDUINO_USB_CDC_ON_BOOT=1
 
-[env:node_a]
+[env:amy]
+extends = env
 build_flags =
   ${env.build_flags}
-  -D NODE_LABEL=\"A\"
+  -D NODE_LABEL=\"Amy\"
 
-[env:node_b]
+[env:bob]
+extends = env
 build_flags =
   ${env.build_flags}
-  -D NODE_LABEL=\"B\"
+  -D NODE_LABEL=\"Bob\"
+
+[env:cy]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Cy\"
+
+[env:dan]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Dan\"
+
+[env:ed]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Ed\"