Weather Balloons and New Arduino Shields Have Arrived

Weather BalloonThis week I received several very exciting parcels of stuff, for my near-space photography project.

First was my weather balloons and parachutes, which came from Flow-Tronic, a company in Belgium. What a weird package, two bright orange plastic parachutes and two clear plastic bags with what are essentially giant 1.5m long condoms in them! The really extraordinary things is that although the balloons will start out at about 1.5m across when inflated, they will expand as they rise (due to the drop in atmospheric pressure) and will end up about 7m across before they burst. That is frickin’ huge!

The next packages to arrive were some new electronic gadgets for the tracking and communication part of the project. After not having much luck with my Navman Jupiter GPS modules (struggled to get a fix), I decided to bite the bullet and get a decent one, as well as the brilliant GPS and SD Card Logger Shield from Adafruit, built specifically for the Arduino. This comes in kit form, so will require me to get my soldering skills back up to scratch.

GPS and SD Card Logger KitI also bought a Cellular Shield from Cool Components which gives you SMS, GSM/GPRS, and TCP/IP capabilities to your Arduino project. I’ll be using it to send SMS messages of the units current location from the above mentioned GPS receiver. This should allow tracking of the weather balloon when at low altitudes, and hopefully aid in recovery when it comes crashing back to earth! This means I will have two stacked shields on my Arduino, so this will require some careful planning to make sure they won’t interfere with each other.

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