IoT Projects

eON e-ink Air Quality Sensor


Unlike air quality sensor projects we’ve previously included in this publication, this is a modular air quality sensor. Due to the chip shortage and supply chain woes, the eON air quality sensor can be built using a variety of sensors and radios. - HackADay

MicroPython Vegetable Garden Automation Tutorial


Rototron highlights a project which adds solar-powered sensors and home automation to a vegetable garden and transmits the data using MQTT for review and control on a mobile app. - Adafruit Blog

Traffic Mitigation with a Machine Learning Speed Trap


Tired of reckless driving in his neighborhood, Rob Lauer built a speed trap to measure the frequency of speeding cars. Data aggregated from this project was submitted to the city for their traffic mitigation planning efforts. -

HomeKit Connected Fence Door Monitoring System


A DIY solar-powered fence door monitoring device. The door’s state is monitored with Apple HomeKit. - movingelectrons



Ikea released this super-inexpensive air quality sensor. The only downsides are that the VINDRIKTNING lacks internet connectivity and it does not seem to be available in the United States yet. Hypfer connected an ESP8266 to the VINDRIKTNING’s PCB pads and has firmware on a GitHub repository which allows it to connect with any MQTT broker - GitHub

Early Forest Fire Detection System


Wesley Eccles created this IoT fire detection system. Instead of heavy infrastructure drones deliver IoT beacons for a mesh system. - Adafruit Blog

IoT News and More!

Microsoft Launches Free “IoT for Beginners” Course


A free, open-source, 12 weeks/24 lesson IoT curriculum designed for beginners by the Azure IoT team. - GitHub

Light Gestures by Timi Oyedeji


Light Gestures is a technical prototype for a method of using natural gestures (making a “shhh!” motion at your smart speaker) for smart home appliances. - Adafruit Blog

Echo Devices - Reset, but not wiped?


Northeastern University researchers spent 16 months performing forensic analysis on 86 used Amazon Echo devices. The end result - researchers were able to extract a rough idea of the device’s previous geolocation and a list of previously connected WiFi networks. - Adafruit Blog


Newark reached out to its global customer base with an IoT survey between September 2020 and December 2020. They got 2,095 completed questionnaires, primarily from engineers of IoT solutions, in 60 countries. They have compiled the results into their 2021 Global IoT Trends Report. - Adafruit Blog

The Strings of Cellular IoT


Brandon Satrom writes about the “invisible strings of cellular IoT” - the invisible difficulties which exist when building a cellular IoT solution. - Cellular IoT

Adafruit IO News

Get a beta invite to WipperSnapper


Wippersnapper is a new no-code IoT interface for Adafruit.IO – it lets you turn any WiFi-capable board into an IoT device without any programming. Simply select what devices are connected to which pins on the hardware and it will auto-configure the firmware and even create an IO feed for visualization.

How can I get an invite to the WipperSnapper Beta?

First – You’ll need a compatible board to use with WipperSnapper. WipperSnapper currently supports the following hardware: Metro ESP32S2, FunHouse ESP32-S2, MagTag ESP32S2, PyPortal, Metro SAMD51+AirLift.

Then – Navigate to the official Adafruit Discord Server and post in #help-with-adafruit-io that you’d like a WipperSnapper beta invite. We’ll message you over Discord with further instructions!, the IoT Platform for Everyone

Sign up for our IoT Platform, Adafruit IO (for free!) by clicking this link. We don’t have investors and we’re not going to sell your data. When you sign up for Adafruit IO+, you’re supporting the same Adafruit Industries whose hardware and software you already know and love! You help make sure we’re not going anywhere by letting us know we’re on the right track.

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.