diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..dda7921
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,23 @@
+[tool.poetry]
+name = "switchbotpy"
+version = "0.1.9"
+description = "An API for Switchbots that allows to control actions, settings and timers (also password protected)"
+authors = ["Nicolas Küchler <nico.kuechler@protonmail.com>"]
+readme = "README.md"
+license = "MIT"
+keywords = ["Switchbot", "Ble", "Button", "Actions", "Settings", "Timers"]
+classifiers=[
+    'Development Status :: 3 - Alpha',
+    'License :: OSI Approved :: MIT License',
+    'Programming Language :: Python',
+]
+
+[tool.poetry.dependencies]
+python = "^3.6"
+pygatt = "^4.0.5"
+pexpect = "^4.8.0"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 224a779..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-[metadata]
-description-file = README.md
\ No newline at end of file
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 2320bfa..0000000
--- a/setup.py
+++ /dev/null
@@ -1,29 +0,0 @@
-from setuptools import setup
-
-with open("README.md", "r") as fh:
-    long_description = fh.read()
-
-setup(
-    name='switchbotpy',
-    packages=['switchbotpy'],
-    version='0.1.7',
-    license='MIT',
-    description='An API for Switchbots that allows to control actions, settings and timers (also password protected)',
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    author='Nicolas Küchler',
-    author_email='nico.kuechler@protonmail.com',
-    url='https://github.com/RoButton/switchbotpy',
-    download_url='https://github.com/RoButton/switchbotpy/archive/v_017.tar.gz',
-    keywords=['Switchbot', 'Ble', 'Button', 'Actions', 'Settings', 'Timers'],
-    install_requires=['pygatt', 'pexpect'],
-    classifiers=[
-        'Development Status :: 3 - Alpha',
-        'Intended Audience :: Developers',
-        'Topic :: Software Development :: Build Tools',
-        'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-    ],
-)
diff --git a/switchbotpy/switchbot_util.py b/switchbotpy/switchbot_util.py
index 9ece639..9ea947b 100644
--- a/switchbotpy/switchbot_util.py
+++ b/switchbotpy/switchbot_util.py
@@ -13,6 +13,7 @@ def handle_notification(handle: int, value: bytes):
 class ActionStatus(Enum):
     complete = 1
     device_busy = 3
+    cmd_not_supported = 5
     device_unreachable = 11
     device_encrypted  = 7
     device_unencrypted = 8
@@ -26,6 +27,8 @@ def msg(self):
             msg = "action complete"
         elif self == ActionStatus.device_busy:
             msg = "switchbot is busy"
+        elif self == ActionStatus.cmd_not_supported:
+            msg = "Device does not support this Command"
         elif self == ActionStatus.device_unreachable:
             msg = "switchbot is unreachable"
         elif self == ActionStatus.device_encrypted: