added build functions

.gitignore

@@ -1,2 +1,3 @@
 .pio
-.vscode
+.vscode
+build/*

build.py

@@ -0,0 +1,14 @@
+import shutil
+import os
+Import("env")
+
+def post_build(source, target, env):
+    src = target[0].get_abspath()
+    dest = os.path.join(env["PROJECT_DIR"], "build", "firmware_%s_%s.bin" % (env.GetProjectOption("board"), env.GetProjectOption("version")))
+
+    #print("dest:"+dest)
+    #print("source:"+src)
+
+    shutil.copy(src, dest)
+
+env.AddPostAction("$BUILD_DIR/firmware.bin", post_build)

platformio.ini

@@ -26,6 +26,8 @@ lib_deps =
 build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH
 upload_speed = 921600
 monitor_speed = 115200
+extra_scripts = post:build.py
+version = 1.3.1
 
 [env:d1_mini]
 board = d1_mini