IoT Smart Home and Home Automation
IoT has revolutionized the way we live, and smart homes are one of the most prominent applications of IoT. With the help of IoT, various devices in a smart home can be connected and controlled remotely. Here are a few examples of smart home automation with code snippets to illustrate their functionality:
- Smart Lighting Automation with Philips Hue:
Philips Hue is a popular smart lighting system that can be controlled through an app or API. Here's an example of using the Philips Hue API to turn on/off lights based on motion detection:
import requests
import json
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)
hue_ip = "hue_bridge_ip_address"
hue_username = "hue_api_username"
light_id = "1"
while True:
if GPIO.input(17):
print('Motion detected!')
url = "http://" + hue_ip + "/api/" + hue_username + "/lights/" + light_id + "/state"
data = json.dumps({"on": True, "bri": 254, "hue": 10000})
headers = {'Content-type': 'application/json'}
response = requests.put(url, data=data, headers=headers)
print(response.text)
time.sleep(5)
data = json.dumps({"on": False})
response = requests.put(url, data=data, headers=headers)
print(response.text)
time.sleep(0.1)
- Smart Thermostat Automation with Nest:
Nest is a popular smart thermostat that can be controlled through an app or API. Here's an example of using the Nest API to set the temperature based on the time of day:
import requests
import json
import datetime
nest_token = "nest_api_access_token"
nest_device_id = "nest_thermostat_device_id"
now = datetime.datetime.now()
if now.hour >= 8 and now.hour < 16:
temperature = 70
else:
temperature = 65
url = "https://developer-api.nest.com/devices/thermostats/" + nest_device_id
headers = {'Content-type': 'application/json', 'Authorization': 'Bearer ' + nest_token}
response = requests.get(url, headers=headers)
current_temperature = response.json()["ambient_temperature_f"]
if current_temperature != temperature:
data = json.dumps({"target_temperature_f": temperature})
response = requests.put(url, data=data, headers=headers)
print(response.text)
- Smart Lock Automation with August:
August is a popular smart lock that can be controlled through an app or API. Here's an example of using the August API to lock/unlock the door based on user input:
import requests
import json
august_token = "august_api_access_token"
august_lock_id = "august_lock_id"
def lock():
url = "https://api-production.august.com/remoteoperate/" + august_lock_id + "/lock"
headers = {'Content-type': 'application/json', 'x-august-access-token': august_token}
response = requests.put(url, headers=headers)
print(response.text)
def unlock():
url = "https://api-production.august.com/remoteoperate/" + august_lock_id + "/unlock"
headers = {'Content-type': 'application/json', 'x-august-access-token': august_token}
response = requests.put(url, headers=headers)
print(response.text)
while True:
input_str = input("Enter L to lock or U to unlock: ")
if input_str.lower() == "l":
lock()
elif input_str.lower() == "u":
unlock()
else:
print("Invalid input, try again.")
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