Archive for the ‘Xbee’ Category

VR/Urban's SMSlingshot paints on walls with digital pixels

Wednesday, July 28th, 2010

Amazing VR/Urban Project from Berlin:

The SMSlingshot is an autonom working device, equipped with an ultra-high frequency radio, hacked arduino board, laser and batteries. Text messages can be typed on a phone-sized wooden keypad which is integrated in the also wooden slingshot. After the message is finished, the user can aim on a media facade and send/shoot the message straight to the targeted point. It will then appear as a colored splash with the message written within. The text message will also be real-time twittered – just in case.

have a look at the video on the official page of the project. Very interesting use of the sling in a digital way.

via [VR/Urban]

The Pool – A Jen Lewin Interactive Installation

Monday, July 26th, 2010

The Pool_1

A must-see video produces by SparkFun about a very interesting installation by Jen Lewin, The Pool:

The Pool is an environment of giant, concentric circles created from interactive, wireless circular pads. By entering the pool, you enter a world where play and collaborative movement can create a cascading effect of swirling light and color .

Each pad in The Pool is its own wireless controller. All of the 106 pads communicate and listen to each other in an organic network formed in the same way people interact. The Pool has no single master computer and does not use a router to route or control connections. Each pad is independent, and simultaneously interacts and listens to its environment based on user feedback. Together, the 106 pads create complex, surprising, and unpredictable color arrays with their user participants.

video after the break


Connection XBee Series 2 (AKA ZB Pro/ZNet) to an arduino

Thursday, May 20th, 2010

not-a-rocket-surgeon-style step-by-step Xbee Tutorial. Just to save some time if you lost your mind.

My goal was to have two xbee series 2 modules communicate to each other in a two way configuration.  I found the the various instructions on the internets to be confusing and hard to follow (but then again, I am no Rocket Surgeon).

if you are not on windows and want to fine some alternatives to XCTU, just check this nice & interesting tutorial using a python-based app to configure the Xbees. (—>thanks to Giovanni!)

via [notaRocketSurrgeon]

XBees, Arduinos, Serial Data

Thursday, May 20th, 2010

Some update (and wireless inhancement) of the arduino+php+lcd project of [justin] from [brockenCityLab]

I made some huge progress over the last week or so on this ongoing Arduino / LCD project — it’s finally gone wireless!

With some more silly mistakes behind me, I’m finally getting a better handle on how to break down the problems I run into and solve them a lot faster. I remember back in February, it seemed as though it was going to be impossible to actually get this wireless part happening, so I’m super relieved to know it’s at least partly working.

Also, there have been people asking for the code used in this project (in terms of PHP and Arduino scripts), I will upload them! I just haven’t had the time to go through and appropriately clean them up and comment them, so I’m not sure how useful they would be at this point. I just wanted to note that I will indeed be doing that soon though!

allloooot of pictures.

via [brokencitylab]

Railway-related German Supremacy Hacked [joke!]

Monday, May 3rd, 2010

If you happen to be a railway geek, you may know this Intellibox:

Between the control computer and the railway is Uhlenbrock’s Intellibox (German site). Its RS232 interface supports Märklin’s P50 protocol, plus extensions called P50X. The extensions include an event system for acquiring information about changes in the railway state. The most important use for this is reading track sensors, but it can also be used to keep the program in sync with other control devices.

It is ment to be made out of modules (for sensors, turnaout control and so on), but as a [spanish twit] adviced me, down at [databeaver's domain] they found a way mimic the begaviour of these modules, wirelessly. (nice conbination between *BELOVED* Arduino mini and Xbee)

I’m starting to make and use some custom hardware components based on the Arduino microcontroller boards. The first one is a wireless s88 transmitter/receiver pair using an XBee radio module. This allows me to get rid of long sensor wires and it has potential to be cheaper than Märklin’s (horribly overpriced) s88 modules.

The firmware source code for both the transmitter and receiver can be found from SVN. Schematic for the transmitter is below; the receiver can be connected directly to the S88 bus (see the source file for pinout).

Via [databeaver's domain]

Wireless Robotics Platform: Cheap R/C Vehicle + Arduino + XBee + Processing

Friday, March 5th, 2010

Wow. I definetly have to check this step by step guide to build your own Processing-controlled car.
Toy Hacking is one of the best way to learn how to deal with little hardware. Very well detailed.

Some Features:

    via [NootropicDesign]
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  • All logic controlling the vehicle is performed in a Processing program running on remote computer. The Arduino program listens for commands from the remote computer.
  • Bi-directional wireless communication over XBee radios with (theoretical) 1-mile range. I’ve accomplished 1/4 mile range with these radios.
  • Sensor events are transmitted from the vehicle to the controlling computer. This vehicle has 3 microswitches – two on front bumper and one at the rear.
  • Original circuitry of vehicle replaced with dual H-Bridge circuit to control drive motor and turn motor. Drive motor is controlled with variable speed.
  • Power: Vehicle motors powered by 4 AA batteries. Arduino with XBee shield powered by 9V battery mounted at front of vehicle.
  • Simple communications protocol: 2 byte commands from controller to vehicle, one byte sensor readings from vehicle to controller.
  • OpenEnergyMonitor – Documentation finished for the whole home energy monitor

    Tuesday, February 16th, 2010

    Over the Top:
    The project Top: The display, Middle: The main unit with CT sensor, Voltage sensing, USB datalogging… Bottom: Ethernet unit for internet connectivity, Very Bottom: graphs

    The energy monitor is working away logging energy consumption data, giving some informative readouts and nice looking graphs! there’s more about it in the blog post here and the documentation here.

    via [OpenEnergyMonitor]
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    Arduino + Xbee = 3 PCB found on the web

    Friday, February 12th, 2010

    3 Arduino-related microcontrollers Xbee-ready.
    It seems that one of the directions taken from several producers worldwide is to have a new design in Xbee-Ready products.
    Like Seeduino’s Stalker, Luke Wenston & Andy Gelme PCB(no name provided yet) and Adafruit’s WiseDuino

    Photos & links.

    via [PracticalArduino]

    via [seeduino]

    via [adafruit]

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