Add src_dir option to [platformio] section of platformio.ini which allows to redefine location to project’s source directory // Resolve #83

examples/atmelavr-and-arduino/arduino-own-src_dir/Blink/Blink.ino

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+/**
+ * Copyright (C) Ivan Kravets <me@ikravets.com>
+ * See LICENSE for details.
+ */
+
+#ifndef LED_PIN
+#define LED_PIN 13  // Most Arduino boards already have a LED attached to pin 13 on the board itself
+#endif
+
+
+void setup()
+{
+  pinMode(LED_PIN, OUTPUT);     // set pin as output
+}
+
+void loop()
+{
+  digitalWrite(LED_PIN, HIGH);  // set the LED on
+  delay(1000);                  // wait for a second
+  digitalWrite(LED_PIN, LOW);   // set the LED off
+  delay(1000);                  // wait for a second
+}

examples/atmelavr-and-arduino/arduino-own-src_dir/README.rst

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+How to buid PlatformIO based project
+====================================
+
+1. `Install PlatformIO <http://docs.platformio.org/en/latest/installation.html>`_
+2. Download `source code with examples <https://github.com/ivankravets/platformio/archive/develop.zip>`_
+3. Extract ZIP archive
+4. Run these commands:
+
+.. code-block:: bash
+
+    # Change directory to example
+    > cd platformio-develop/examples/arduino-own-src_dir
+
+    # Process example project
+    > platformio run
+
+    # Upload firmware
+    > platformio run --target upload
+
+    # Clean build files
+    > platformio run --target clean

examples/atmelavr-and-arduino/arduino-own-src_dir/platformio.ini

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+#
+# Project Configuration File
+#
+# A detailed documentation with the EXAMPLES is located here:
+# http://docs.platformio.org/en/latest/projectconf.html
+#
+
+# A sign `#` at the beginning of the line indicates a comment
+# Comment lines are ignored.
+
+# Simple and base environment
+# [env:mybaseenv]
+# platform = %INSTALLED_PLATFORM_NAME_HERE%
+# framework =
+# board =
+#
+# Automatic targets - enable auto-uploading
+# targets = upload
+
+[platformio]
+src_dir = Blink
+
+[env:arduino_uno]
+platform = atmelavr
+framework = arduino
+board = uno