Community Projects
Blues and our community regularly publish projects on Hackster to showcase the things we're building. Check out these guides for reference implementations, and for inspiration for the app you might want to build next.
Home Automation
Smart Door Lock With ESP32 and Blues Notecard
Create a smart door lock that utilises BLE for local unlocking and a mobile app integrated with Blues Notecards for remote unlocking.
Green Box: Remotely Controllable Power Consumption
Green Box: Manage & monitor your energy use remotely! Plug in, access, and save power. Eco-friendly control at your fingertips.
Revolutionize Your Automation Game with Blues & DFRobot
Build your own home automation system using the Blues Notecard, Notehub, Node-RED, and Qubitro.
Gas Leak Detector with Arduino, Blues & Edge Impulse
This project can detect harmful gasses and alert the users.
No-code Intrusion Detection System with Blues Notecard
You can have an AIoT security system up and running with minimal configuration, without the need to write any code.
IoT assistive device
Device that creates smarter and more connected home by integrating various household functions and providing real-time data about the home.

Build a Fleet of Low Power, Cloud-Connected e-Ink Displays
Use the Notecard and Notehub. io to keep a fleet of e-Ink displays synchronized across a facility.
“I love checking on mousetraps,” said no one ever
Get an SMS alert when there's a mouse in your live trap as we build a smarter mousetrap for the Internet of Things.
Sensor Clusters Made Easy w/LoRa and Blues Wireless Sparrow
I deployed an array of LoRa-based sensors to monitor the temperature and humidity throughout my house.
Leave the Water Running? 💧 Build an IoT Smart Leak Detector
Learn how to build a low-cost (and low-code) water leak detection device complete with SMS notifications if a leak's detected.
Cellular-Enabled Power Outage Detector w/ SMS Notifications
Learn how to build a globally-available power outage detector with Twilio and a Cellular Notecard from Blues Wireless.
Debugging a Hot Tub Time (Series) Machine
Build a water quality monitoring solution with cellular connectivity, cloud dashboards, and SMS messaging for chlorine emergencies! 🐛❌