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Wireless Scoreboard

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Would you like to be able to keep tally of a score on a portable LCD screen with wireless pushbuttons? Then this is the project for you! This project uses an Arduino microcontroller, Mbed microcontroller, and a couple of Digi XBee radios.

score1
Initially 0-0
score2
Push Home button
score3
Now 1-0
score4
Push Home 10 more times & Away 3 times
score5
Now 11-3
score6
Push Reset button
score7
Back to 0-0

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XBee Rock, Paper, Scissors

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Would you like to be able to play automated Rock, Paper, Scissors electronically and wirelessly? Then this is the project for you! This project uses two Mbed microcontroller and a couple of Digi XBee radios to enable two people to choose a button representing either Rock, Paper, or Scissors and determines the winner on your own LCD screen.

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Quadcopter Wireless Navigation and Simulation

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Do you plan on flying a quad copter? Well, what if you could stream in data wirelessly?! Then you could replay your quadcopter in 3D motion and track its battery data over the course of your flight. This will mainly comprise of wirelessly connecting to the ardupilot mega (APM) quad copter through an XBee connection. One XBee will be connected to the computer and the other will be connected to the telemetry port on the quad copter. Follow the following wiki page for instructions on how to construct this: http://copter.ardupilot.com/wiki/xbee-radios/

Now that you have fully hooked up your XBees and quad copter, now we can talk about MavLink! MavLink is a software program that takes input data from the XBee and determines location, speed, GPS location, etc. for the quad copter. Follow the link for instructions on installing MavLink and follow the tutorial to learn about all the cool things it can do! http://qgroundcontrol.org/mavlink/start

When you start MavLink, your window should look like that of Figure 1.

Quad1
Figure 1.

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Security Monitor

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Do you want to detect when a person passes by? Whether it is outside your apartment or your room or even in the next cubicle, you can now wirelessly detect if someone passes by which will sound a voice message and display a message on an LCD screen. This will use the Arduino microcontroller and XBee radio. After all, Arduino and XBee are best friends in the electrical engineering world! Why else would an XBee shield exist?

Security1 Security2
Nobody is detected

Security3 Security4
Somebody is detected!

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Quadcopter Battery Monitor and Laser Controller

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Do you plan on flying a quad copter? Well you’ll need a way to monitor your battery level! Otherwise, you will get excited and fly it and then the battery voltage will drop enough such that the current will drop and then your quad copter will crash and there will go hundreds of dollars to waste because you didn’t buy insurance. How about that landing? Would you like to have the power to switch a laser on to determine where you are in reference to the ground? No worries! We will create a device that wirelessly displays your current voltage level, status messages, an LED light that displays the battery percent remaining, and you will even have the power to turn a quad copter mounted laser on or off wirelessly with the control of a switch, all on one device using Arduino and Digi XBee radio technology.  After all, Arduino and XBee are best friends in the electrical engineering world! Why else would an XBee shield exist?

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Low-Voltage Detection Example

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In this post we’ll show you how to use the Low Voltage Detection (LVD) feature of the Programmable XBee to print a message when a minimum voltage is reached on the module’s power pins. This is useful in battery-powered applications to generate a warning when the batteries need to be replaced.

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Potentiometer Example: XBee Wi-Fi

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When it comes to analog input, it doesn’t get any easier than a basic potentiometer. Potentiometers can be used for setting a level, determining an angle or just as a simple user interface adjustment.

Push Button Example: XBee Wi-Fi

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A button or “momentary switch” is perfect for projects that require user input, or anyplace you need to detect a change in device state. In this tutorial, we’ll walk you through wiring up a simple button to your XBee Wi-Fi so that its current state can be seen in a online application from anywhere in the world.

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