diff --git a/adafruit_hue.py b/adafruit_hue.py
index c51d41e..e6a3d39 100644
--- a/adafruit_hue.py
+++ b/adafruit_hue.py
@@ -29,6 +29,12 @@
 from random import randint
 from simpleio import map_range
 
+try:
+    from typing import Optional, List, Union, Sequence, Any
+    from circuitpython_typing.http import HTTPProtocol
+except ImportError:
+    pass
+
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_Hue.git"
 
@@ -38,7 +44,12 @@ class Bridge:
     HTTP Interface for interacting with a Philips Hue Bridge.
     """
 
-    def __init__(self, wifi_manager, bridge_ip=None, username=None):
+    def __init__(
+        self,
+        wifi_manager: HTTPProtocol,
+        bridge_ip: Optional[str] = None,
+        username: Optional[str] = None,
+    ) -> None:
         """
         Creates an instance of the Philips Hue Bridge Interface.
         :param wifi_manager wifi_manager: WiFiManager from ESPSPI_WiFiManager/ESPAT_WiFiManager
@@ -51,11 +62,11 @@ def __init__(self, wifi_manager, bridge_ip=None, username=None):
         self._ip = bridge_ip
         self._username = username
         if bridge_ip and username is not None:
-            self._bridge_url = "http://{}/api".format(self._ip)
+            self._bridge_url = f"http://{self._ip}/api"
             self._username_url = self._bridge_url + "/" + self._username
 
     @staticmethod
-    def rgb_to_hsb(rgb):
+    def rgb_to_hsb(rgb: Sequence[int]) -> Sequence[int]:
         """Returns RGB values as a HSL tuple.
         :param list rgb: RGB Values
         """
@@ -89,7 +100,7 @@ def rgb_to_hsb(rgb):
         return round(hue), round(sat, 3), round(light, 2)
 
     # Hue Core API
-    def discover_bridge(self):
+    def discover_bridge(self) -> str:
         """Discovers Philips Hue Bridge IP from the hosted broker discovery service.
         Returns the bridge's IP address.
         """
@@ -105,16 +116,16 @@ def discover_bridge(self):
             ) from err
         self._ip = bridge_ip
         # set up hue bridge address path
-        self._bridge_url = "http://{}/api".format(self._ip)
+        self._bridge_url = f"http://{self._ip}/api"
         return self._ip
 
-    def register_username(self):
+    def register_username(self) -> str:
         """Attempts to register a Hue application username for use with your bridge.
         Provides a 30 second delay to press the link button on the bridge.
         Returns username or None.
         """
-        self._bridge_url = "http://{}/api".format(self._ip)
-        data = {"devicetype": "CircuitPython#pyportal{0}".format(randint(0, 100))}
+        self._bridge_url = f"http://{self._ip}/api"
+        data = {"devicetype": f"CircuitPython#pyportal{randint(0, 100)}"}
         resp = self._wifi.post(self._bridge_url, json=data)
         connection_attempts = 1
         username = None
@@ -130,16 +141,17 @@ def register_username(self):
         return username
 
     # Lights API
-    def show_light_info(self, light_id):
+    def show_light_info(self, light_id: Union[int, str]) -> str:
         """Gets the attributes and state of a given light.
-        :param int light_id: Light identifier.
+        :param int|str light_id: Light identifier.
         """
-        resp = self._get("{0}/lights/{1}".format(self._username_url, light_id))
+        resp = self._get(f"{self._username_url}/lights/{light_id}")
         return resp
 
-    def set_light(self, light_id, **kwargs):
+    def set_light(self, light_id: Union[int, str], **kwargs) -> str:
         """Allows the user to turn the light on and off, modify the hue and effects.
         You can pass the following as valid kwargs into this method:
+        :param int|str light_id: Light identifier
         :param bool on: On/Off state of the light
         :param int bri: Brightness value of the light, 0-100% (1 to 254)
         :param int hue: Hue value to set the light, in degrees (0 to 360) (0 to 65535)
@@ -147,34 +159,32 @@ def set_light(self, light_id, **kwargs):
         (more settings at:
         https://developers.meethue.com/develop/hue-api/lights-api/#set-light-state )
         """
-        resp = self._put(
-            "{0}/lights/{1}/state".format(self._username_url, light_id), kwargs
-        )
+        resp = self._put(f"{self._username_url}/lights/{light_id}/state", kwargs)
         return resp
 
-    def toggle_light(self, light_id):
+    def toggle_light(self, light_id: Union[int, str]) -> str:
         """Gets and toggles the current state of a specified light.
-        :param int light_id: Light identifier.
+        :param int|str light_id: Light identifier.
         """
         light_state = self.get_light(light_id)
         light_state = not light_state["state"]["on"]
         resp = self.set_light(light_id, on=light_state)
         return resp
 
-    def get_light(self, light_id):
+    def get_light(self, light_id: Union[int, str]) -> str:
         """Gets the attributes and state of a provided light.
-        :param int light_id: Light identifier.
+        :param int|str light_id: Light identifier.
         """
-        resp = self._get("{0}/lights/{1}".format(self._username_url, light_id))
+        resp = self._get(f"{self._username_url}/lights/{light_id}")
         return resp
 
-    def get_lights(self):
+    def get_lights(self) -> Any:
         """Returns all the light resources available for a bridge."""
         resp = self._get(self._username_url + "/lights")
         return resp
 
     # Groups API
-    def create_group(self, lights, group_id):
+    def create_group(self, lights: List[Union[int, str]], group_id: str) -> Any:
         """Creates a new group containing the lights specified and optional name.
         :param list lights: List of light identifiers.
         :param str group_id: Optional group name.
@@ -183,9 +193,9 @@ def create_group(self, lights, group_id):
         resp = self._post(self._username_url + "/groups", data)
         return resp
 
-    def set_group(self, group_id, **kwargs):
+    def set_group(self, group_id: Union[int, str], **kwargs) -> Any:
         """Allows the user to turn the light on and off, modify the hue and effects.
-        :param int group_id: Group identifier.
+        :param int|str group_id: Group identifier.
         You can pass the following as (optional) valid kwargs into this method:
         :param bool on: On/Off state of the light
         :param int bri: Brightness value of the light (1 to 254)
@@ -194,31 +204,30 @@ def set_group(self, group_id, **kwargs):
         (more settings at
         https://developers.meethue.com/develop/hue-api/lights-api/#set-light-state )
         """
-        resp = self._put(
-            "{0}/groups/{1}/action".format(self._username_url, group_id), kwargs
-        )
+        resp = self._put(f"{self._username_url}/groups/{group_id}/action", kwargs)
         return resp
 
-    def get_groups(self):
+    def get_groups(self) -> Any:
         """Returns all the light groups available for a bridge."""
         resp = self._get(self._username_url + "/groups")
         return resp
 
     # Scene API
-    def set_scene(self, group_id, scene_id):
+    def set_scene(self, group_id: Union[int, str], scene_id: str) -> None:
         """Sets a group scene.
+        :param int|str group_id: the group identifier
         :param str scene: The scene identifier
         """
         # To recall an existing scene, use the Groups API.
         self.set_group(group_id, scene=scene_id)
 
-    def get_scenes(self):
+    def get_scenes(self) -> Any:
         """Returns a list of all scenes currently stored in the bridge."""
         resp = self._get(self._username_url + "/scenes")
         return resp
 
     # HTTP Helpers for the Hue API
-    def _post(self, path, data):
+    def _post(self, path: str, data: str) -> Any:
         """POST data
         :param str path: Formatted Hue API URL
         :param json data: JSON data to POST to the Hue API.
@@ -228,7 +237,7 @@ def _post(self, path, data):
         resp.close()
         return resp_json
 
-    def _put(self, path, data):
+    def _put(self, path: str, data: str) -> Any:
         """PUT data
         :param str path: Formatted Hue API URL
         :param json data: JSON data to PUT to the Hue API.
@@ -238,7 +247,7 @@ def _put(self, path, data):
         resp.close()
         return resp_json
 
-    def _get(self, path, data=None):
+    def _get(self, path: str, data: Optional[str] = None) -> Any:
         """GET data
         :param str path: Formatted Hue API URL
         :param json data: JSON data to GET from the Hue API.
diff --git a/requirements.txt b/requirements.txt
index f0cae8f..ac9cf14 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@
 Adafruit-Blinka
 adafruit-circuitpython-simpleio
 adafruit-circuitpython-esp32spi
+adafruit-circuitpython-typing