Sensors
A sensor is a transducer whose purpose is to sense (that is, to detect) some characteristic of its environments… From Wikipedia, the free encyclopedia
Intel® Edison Ecosystem
Sensors Bring IoT Projects to Life. Sensors are the eyes and ears, and temperature and vibration and rotation and…you get it. Without sensors, there’s no IoT.
Sparkfun
SparkFun Electronics (sometimes known by its abbreviation, SFE) is an electronics retailer in Niwot, Colorado, United States. It manufactures and sells microcontroller development boards and breakout boards.
Adafruit
Adafruit Industries is an open-source hardware company founded by Limor Fried in 2005.[1][2] The company designs and manufactures a number of electronics products, sells a wide variety of electronics components, tools, and accessories via its online storefront, and produces a number of learning resources, including written tutorials, introductory videos for children, and the longest running live video electronics show on the Internet.