Small script using the Sense HAT (https://www.raspberrypi.org/products/sense-hat/) on a raspberry pi to measure temperature. If the temperature reaches THRESHOLD, send an AWS SNS publish to alert any interested parties.

sns-temp-alert.py

import boto3
from sense_hat import SenseHat

THRESHOLD=25.0

sense = SenseHat()
humtemp = sense.get_temperature_from_humidity()
presstemp = sense.get_temperature_from_pressure()
avgtemp = (humtemp + presstemp) / 2

if avgtemp >= THRESHOLD:
  sns_client = boto3.client('sns')

  response = sns_client.publish(
    #PhoneNumber='<FILL_ME_IN>',
    #TopicArn='<OR_USE_ME>',
    Message='WARNING Temperature in server room is %.2f' % avgtemp)
  )

  print(response)