diff --git a/.github/workflows/hassfest.yaml b/.github/workflows/hassfest.yaml
index afbde1a..5f7a071 100644
--- a/.github/workflows/hassfest.yaml
+++ b/.github/workflows/hassfest.yaml
@@ -11,4 +11,4 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - uses: "actions/checkout@v3"
-        - uses: "home-assistant/actions/hassfest@master"
\ No newline at end of file
+        - uses: "home-assistant/actions/hassfest@master"
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
new file mode 100644
index 0000000..7c68dee
--- /dev/null
+++ b/.github/workflows/pre-commit.yml
@@ -0,0 +1,15 @@
+name: pre-commit
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron:  '0 0 * * *'
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+    - uses: pre-commit/action@v3.0.0
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..837dba4
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,29 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+        args: ["--fix=lf"]
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.0.280
+    hooks:
+      - id: ruff
+        args: ["--fix"]
+
+  - repo: https://github.com/psf/black
+    rev: 23.7.0
+    hooks:
+      - id: black
+
+  - repo: https://github.com/PyCQA/flake8
+    rev: 6.0.0
+    hooks:
+    - id: flake8
+
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.12.0
+    hooks:
+    - id: isort
diff --git a/README.md b/README.md
index ebba25c..7609961 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Add `https://github.com/kdeyev/eyeonwater` as Repository and select the "Integra
 
 2. Add EyeOnWater integration following [HACS instructions](https://github.com/hacs/integration)
 
-Follow the configuration dialog: 
+Follow the configuration dialog:
 - Choose EyeOnWater hostname (choose eyeonwater.com unless you are in Canada).
 - Choose the measurement system you prefer to use. "Imperial" will create a water sensor counting gallons, "Metric" will create a water sensor counting cubic meters.
 - Use your username and password, which you use to log in on eyeonwater.com
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b13d44a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,21 @@
+[tool.black]
+target-version = ["py39", "py310"]
+exclude = 'generated'
+
+[tool.isort]
+# https://github.com/PyCQA/isort/wiki/isort-Settings
+profile = "black"
+# will group `import x` and `from x import` of the same module.
+force_sort_within_sections = true
+known_first_party = [
+    "homeassistant",
+    "tests",
+]
+forced_separate = [
+    "tests",
+]
+combine_as_imports = true
+
+[flake8]
+; ignore = E211, E999, F401, F821, W503
+max-doc-length = 72
diff --git a/ruff.toml b/ruff.toml
new file mode 100644
index 0000000..c1b6b78
--- /dev/null
+++ b/ruff.toml
@@ -0,0 +1,37 @@
+# The contents of this file is based on https://github.com/home-assistant/core/blob/dev/pyproject.toml
+
+target-version = "py310"
+
+select = ["ALL"]
+
+# All the ones without a comment were the ones that are currently violated
+# by the codebase. The plan is to fix them all (when sensible) and then enable them.
+ignore = [
+    "ANN",
+    "ANN101",  # Missing type annotation for {name} in method
+    "ANN401",  # Dynamically typed expressions (typing.Any) are disallowed in {name}
+    "D401",    # First line of docstring should be in imperative mood
+    "E501",    # line too long
+    "FBT001",  # Boolean positional arg in function definition
+    "FBT002",  # Boolean default value in function definition
+    "FIX004",  # Line contains HACK, consider resolving the issue
+    "PD901",   # df is a bad variable name. Be kinder to your future self.
+    "PERF203",# `try`-`except` within a loop incurs performance overhead
+    "PLR0913", # Too many arguments to function call (N > 5)
+    "PLR2004", # Magic value used in comparison, consider replacing X with a constant variable
+    "S101",    # Use of assert detected
+    "SLF001",  # Private member accessed
+]
+
+[per-file-ignores]
+"tests/*.py" = ["ALL"]
+".github/*py" = ["INP001"]
+
+[flake8-pytest-style]
+fixture-parentheses = false
+
+[pyupgrade]
+keep-runtime-typing = true
+
+[mccabe]
+max-complexity = 25