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Sensing Light Levels with a Photocell

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Photocells are a popular component in electronics projects; they let you sense light levels. In this tutorial, you’ll learn how to create a wireless photocell.

Joystick with XBee

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Let’s get physical! Join this joystick to your XBee radio for a terrific way to add movement to your project, sending all kinds of things in different directions.

New Digi XBee Example: Make Money with a Coin Acceptor

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Earn some income using this latest XBee Example that shows how to easily connect an XBee radio to one of Adafruit’s nifty coin acceptors. It’s part of Digi’s efforts to document how to create all kinds of interesting XBee inputs, outputs and interconnections.  We’d like to make making things easier.

Here’s what the site has to say:

“Your XBee can make real money, all by itself! This easy-to-use coin acceptor can be part of any project where you want to accept coins, whether they be Euros, pence, pounds, a Cambodian Riel or American quarters.

“The XBee radio will send a signal every time a coin is inserted into the acceptor. In this tutorial, we’ll walk you through how to program the radio, configure the acceptor and wire it up to an XBee so you can create projects that earn real cash!”

The video below shows an XBee coin acceptor in a basic, local implementation. It’s just a starting point for you to get creative. For example you could also hook everything up to the Internet via the new XBee Internet Gateway and start Counting Money with a Coin Acceptor online!

Digi XBee Example for Feeling the Force

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The newest tutorial on Digi’s XBee Examples site teaches you to create a wireless force sensor or FSR. The force sensor sends out a signal that varies depending upon how hard you press on it. It can be used to measure weight or pressure.

Additional examples for XBee radio sensors and outputs are being posted regularly, all summer long. Follow our RSS feed to collect ’em all. For example last week’s Digital Input example could be used to detect whether a cat is on a mat. But if you need to know how fat is that cat on the mat, then then Matt Richardson’s new Feeling Force example is for you!

Wireless Panel Meter

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Watch the needle go back and forth as you satisfy your nostalgia for analog outputs with this tutorial on making a wireless panel meter.

Feeling Force with an FSR

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As opposed to a simple push button, force sensing resistors (FSR’s for short) can sense how hard a user is pressing down. In this tutorial, we’ll make a wireless FSR.

Digi XBee Examples Site

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Our brand new Digi XBee Examples project site just went live! Check out  the first tutorials that Matt Richardson and Rob Faludi have published on Digi’s instructional library site: examples.digi.com.

Right now we have a big pile of different sensors, lights, motors, scent emitters and more that just came in. We’re going to demonstrate XBee hookups for ’em all, then show how they can be linked to one another, hooked up to computers and connected to the Internet. From breathalyzers to joysticks and from wind sensors to fluid meters we’re creating a modular toolbox that should jumpstart all kinds of innovative and practical XBee projects. Come and see the beginnings:

 

Keep informed about new tutorials by following the RSS feed.

 

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