Introduction

Home Assistant is an open source home automation system that allows you to control Internet of Things devices like smart bulbs, smart switches and sensors. In this article, I’ll show you how to use Twilio SMS to have your Home Assistant (HA) alert you via SMS when it detects problems in your home.

Prerequisites

To follow along with this post, you’ll need:

• A Twilio account - if you don’t already have one, sign up for a free Twilio trial account that you’ll use later to test the notification system we’ll be setting up.
• A working Home Assistant installation, with some sensors connected to it. I used a Zigbee water sensor (an Aqara Water Leak Sensor, specifically) for this tutorial but any sensor that you have connected to your Home Assistant will also work - you could also use a garage door sensor and get alerted when the garage …