IoT Projects

Building an occupancy sensor with a $5 ESP32 and a serverless DB


Matt didn’t think he would “design a full end-to-end software solution to collect occupancy data across a college campus” but he ended up doing just that. This project collects BLE beacons from nearby devices, as a count for occupancy, and sends it back to a time series database for analysis. - Matthew Science Blog

No-Code IKEA Vindriktning Air Quality Sensor Hack with Adafruit IO


The IKEA Vindriktning is an inexpensive air-quality monitor that’s readily available online (from Ikea’s website) or at a retail IKEA store. This guide will show you how to connect your Vindriktning to the Internet to log air quality data over time, without any programming required. - Adafruit Learning System

An ESP32-based internet radio streamer


Dimitris has taken an unused ESP32 board and fashioned an I2S streaming internet radio. - Adafruit Blog

Make a Weather Clock with the Feather Huzzah ESP8266


Instructables user Elaine Gao made this beautiful weather clock using a Feather Huzzah ESP8266 and Adafruit IO! - Instructables

IoT News and More!

Ikea debuts three affordable smart home sensors


Each sensor costs less than $10 and can be used to detect open doors, windows, motion or water leaks. - The Verge

Breaking Free from DRM: The Story of Hacking My Air Purifier


An investigation into the Xiaomi 4 Pro’s DRM’d Air Purifier - Unethical

Support Adafruit


Here at Adafruit, we sell all of these amazing components, but we couldn’t find a good way to interact with them over the Internet. So, we decided to create our own IoT platform, and that’s Adafruit IO. It’s built from the ground up to be easy to use and platform agnostic (connect any development board or device!). For those who want to get a project off the ground without programming - Adafruit IO offers a No-Code interface for building IoT electronics projects using WipperSnapper, our open-source IoT firmware. Support Adafruit’s open-source development by subscribing to Adafruit IO Plus, the upgraded, all-systems-go version of the Adafruit IO service.