The SmartThings Blog

A SmartThings user shares how one costly mistake led to a simple, smart solution There are moments in life that test your patience, your resilience, and your relationship with frozen pizza. For me, that moment came on a sleepy Saturday morning, when I entered my kitchen and discovered a scene that can only be described as devastatingly soggy. I had left the freezer door cracked open overnight after I’d grabbed a bedtime snack. Everything from ice cream to expensive cuts of meat was ruined. A full freezer, lost to forgetfulness. After cycling through the five stages of grief (and a deep clean), I realized this didn’t have to happen. I use SmartThings, the platform built to make life easier, not ruin my day with four pints of liquified ice cream. So I did what any tech-savvy, freshly humbled human would do: installed a SmartThings-compatible Aqara sensor, synced it to my SmartThings app on iOS ( the setup is just as easy as it is for Android), and created a routine to send me an alert if the freezer is open for more than a minute. Simple. Seamless. Sanity-saving. A $20 Sensor vs. a $300 Grocery Bill Smart home devices aren’t just for sci-fi enthusiasts or gadget geeks. They’re for everyday people who want to avoid real-world chaos. Whether it's a cracked freezer door, a garage left open, or lights on all night in your kid’s room, SmartThings can quietly step in to keep things running smoothly and dodge dishing out big bucks down the line.Here’s how my SmartThings setup will now save the day and how yours can, too: Custom Alerts: I created a rule in the SmartThings app that sends a push notification to my phone if the freezer door stays open too long.  I can extend this logic to my fridge, wine cooler, or cabinet where I hide my snacks. Peace of Mind on Autopilot: SmartThings doesn’t just tell you something’s wrong, it gives you the tools to fix it. I could’ve connected a smart light to blink red if the door was left ajar or used a voice assistant to chime in with a reminder. Drama avoided. One App, So Many Solutions: The beauty of SmartThings is that it plays nicely with thousands of devices. Aqara is just one of many partners whose devices work with SmartThings, and because it’s Matter-certified, all I had to do was open the box and scan the QR code for SmartThings to discover it and add it to my devices. Once the sensor was added, I created a routine, and was finally able to move on with my life — and onto my new ice cream. How to Set It Up in SmartThings Want to avoid your own frozen food fail? Here's how to create a simple routine in the SmartThings app using any Works with SmartThings sensor: Add the sensor to your SmartThings app by scanning the QR code or using “Add device” and selecting the brand/model. Tap + and select “Create routine” Tap “If” condition:Select DeviceSet Contact sensor = Open Then tap + Add condition → Add delay → set it to 1 minute(This gives you a grace period before triggering an alert in case you’re just grabbing a snack.) For the “Then” action:Select Send notificationCustomize your message (e.g., “Freezer door left open!!!) Tap Done to save.  Smarter Living Starts with Small Steps We don’t always think about tech until we need it.  The small, everyday decisions like setting up a routine or adding a sensor are what often save us the most time, money, and frustration. So if you’ve ever lost a freezer full of food, forgot to turn off the lights before a trip, or wondered if your front door was locked after you boarded a flight, SmartThings might just be your new best friend. If you want to go a step further, you can even choose a Samsung refrigerator with built-in sensors that connect directly to SmartThings, so you’ll know right away if the door’s been left open, no extra device required. Take it from me: the smartest home isn’t the one with the most devices. It’s the one that works for you, in the moments that matter most. Ready to prevent your next home fiasco? Explore Works with SmartThings sensors and build your own custom automations today.  A smarter (and less soggy) home is just a tap away.