diff --git a/.gitignore b/.gitignore
index fede0103d..5710441dc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,5 @@
 *.bz2
-
 bootloaders/*/build/
-
 .DS_Store
 
-*.json
+package_electroniccats-samd-2.0.0_index.json
diff --git a/builder/compat.py b/builder/compat.py
new file mode 100644
index 000000000..2aca045cc
--- /dev/null
+++ b/builder/compat.py
@@ -0,0 +1,38 @@
+# Copyright 2014-present PlatformIO <contact@platformio.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from SCons.Script import AlwaysBuild, Import
+
+
+Import("env")
+
+
+# Added in PIO Core 4.4.0
+if not hasattr(env, "AddPlatformTarget"):
+
+    def AddPlatformTarget(
+        env,
+        name,
+        dependencies,
+        actions,
+        title=None,
+        description=None,
+        always_build=True,
+    ):
+        target = env.Alias(name, dependencies, actions)
+        if always_build:
+            AlwaysBuild(target)
+        return target
+
+    env.AddMethod(AddPlatformTarget)
\ No newline at end of file
diff --git a/builder/frameworks/arduino.py b/builder/frameworks/arduino.py
new file mode 100644
index 000000000..694cd0e99
--- /dev/null
+++ b/builder/frameworks/arduino.py
@@ -0,0 +1,40 @@
+# Copyright 2014-present PlatformIO <contact@platformio.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Arduino
+Arduino Wiring-based Framework allows writing cross-platform software to
+control devices attached to a wide range of Arduino boards to create all
+kinds of creative coding, interactive objects, spaces or physical experiences.
+http://arduino.cc/en/Reference/HomePage
+"""
+
+import os
+
+from SCons.Script import DefaultEnvironment
+
+env = DefaultEnvironment()
+
+board = env.BoardConfig()
+build_mcu = env.get("BOARD_MCU", board.get("build.mcu", ""))
+
+MCU_FAMILY = board.get(
+    "build.system", "sam" if build_mcu.startswith("at91") else "samd")
+
+if env.BoardConfig().get("build.core", "").lower() == "mbcwb":
+    env.SConscript(
+        os.path.join(env.PioPlatform().get_package_dir(
+            "framework-arduino-mbcwb"), "tools", "platformio-samd-build.py"))
+else:
+    env.SConscript(os.path.join("arduino", "arduino-%s.py" % MCU_FAMILY))
\ No newline at end of file
diff --git a/builder/main.py b/builder/main.py
new file mode 100644
index 000000000..9b894fb4a
--- /dev/null
+++ b/builder/main.py
@@ -0,0 +1,25 @@
+##########################################################################
+#
+#   Electronic Cats SAPI de CV 2020
+#       http://www.electroniccats.com/
+# 
+##########################################################################
+
+from os.path import join
+from SCons.Script import (AlwaysBuild, Default, DefaultEnvironment)
+from colorama import Fore
+
+env = DefaultEnvironment()
+print( Fore.GREEN + '<<<<<<<<<<<< ' + env.BoardConfig().get("name").upper() + " 2019 ElectronicCats >>>>>>>>>>>>" + Fore.BLACK )
+
+elf = env.BuildProgram()
+bin = env.CreateBin( join("$BUILD_DIR", "${PROGNAME}"), elf ) 
+hex = env.CreateHex( join("$BUILD_DIR", "${PROGNAME}"), elf ) 
+AlwaysBuild( hex, bin )
+
+#env.Depends(hex, env.CreateBin( join("$BUILD_DIR", "${PROGNAME}"), elf ))
+
+upload = env.Alias("upload", hex, [ env.VerboseAction("$UPLOADCMD", "\n"), env.VerboseAction("", "\n") ] )
+AlwaysBuild( upload )    
+
+Default( hex, bin )
\ No newline at end of file
diff --git a/platform.json b/platform.json
new file mode 100644
index 000000000..1ac0c1d70
--- /dev/null
+++ b/platform.json
@@ -0,0 +1,54 @@
+{
+    "name": "electronic-cats-samd",
+    "title": "Electronic Cats SAMD(L)(C) Core for Arduino",
+    "description": "Arduino support for SAM D|L|C (M0+ and M4F). Support for D51, SAMR34, L21, C21, and D11",
+    "homepage": "http://www.electroniccats.com",
+    "license": "LGPL 2.0",
+    "keywords": [
+        "dev-platform",
+        "ARM",
+        "Cortex-M",
+        "Atmel",
+        "Microchip",
+        "samr34",
+        "samd51",
+        "samd21",
+        "saml21",
+        "samc21",
+        "samd11"
+      ],
+    "engines": { "platformio": "^3.0.0" },
+    "repository": {
+      "type": "git",
+      "url": "https://github.com/ElectronicCats/ArduinoCore-samd"
+    },
+    "version": "2.0.4",
+    "packageRepositories": [
+      "https://dl.bintray.com/platformio/dl-packages/manifest.json",
+      "http://dl.platformio.org/packages/manifest.json"   
+    ],
+    "frameworks": {
+      "arduino": {
+        "package": "framework-arduino-samd-electroniccats",
+        "script": "builder/frameworks/arduino.py"
+      },
+      "baremetal": {
+        "package": "framework-arduino-samd-electroniccats",
+        "script": "builder/frameworks/baremetal.py"
+      }                
+    },
+    "packages": {
+      "toolchain-gccarmnoneeabi": {
+        "type": "toolchain",
+        "version": "=1.70201.0"
+      }, 
+      "framework-arduino-samd-electroniccats": {
+        "type": "framework",
+        "version": "https://github.com/ElectronicCats/ArduinoCore-samd" 
+      },
+      "tool-arduino-samd-electroniccats": {
+        "type": "uploader",
+        "version": "https://github.com/ElectronicCats/Arduino_Boards_Index"
+      }      
+    }
+  }
\ No newline at end of file