A cheap beam break sensor utilising a reflector panel instead of a transmitter / receiver setup. Capable of handling long distances.
Project tutorial by mova
This device measures fine dust and NO2 concentration in the air while on the move and adds GPS coordinates to each measurement location.
Project showcase by Telina
Cheapest Zigbee Arduino Integration
Project tutorial by BuddyC
Controlling a car using a Pebble watch, an Android phone and an Arduino
Project tutorial by Mika Wee
Monitor and control your garage door from the web.
Project tutorial by PlastiBots.com
How to measuring the air quality of the Open Data Institute using an Arduino and a Shinyei PPD-42.
Project tutorial by OpenSensors.io
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