Turn the iPhone or iPad into a Metal Detector with techBASIC

in Utilities (F)

[prMac.com] Albuquerque, New Mexico - The Byte Works announces techBASIC 1.1, for iOS devices. techBASIC is a BASIC programming language that runs right on the iPhone and iPad. The metal detector blog shows a simple techBASIC program to turn any iPad, and any iPhone from the iPhone 3GS on, into a metal detector. This takes advantage of the magnetometer which is built into every iPad and recent models of the iPhone.

The blog includes the source code for a techBASIC program that turns the iPhone or iPad into a metal detector. The blog starts by showing how to turn the Magnetometer sample that comes with techBASIC into a metal detector. The completed source is also available for download. The program shows deviations in the magnetic field when the iPhone is passed over metallic objects - in this case, an aluminum Macintosh keyboard.

The article digs deep, explaining how the magnetometer in the iPhone and iPad works, and explaining the limitations it has around metallic objects. One limitation is that metallic objects like airplanes and cars distort the magnetic field, causing the magnetometer to stray from magnetic north. This limitation is actually how the metal detector works. By sensing when the magnetic field is being changed, the iPhone or iPad can be used as a simple metal detector. The article also explains the limitations found in some metal detector apps, and tells how to avoid them. A screen capture shows the final result, as an iPhone is passed over an aluminum body Macintosh keyboard.

techBASIC is available on the app store. While the built-in help system may be adequate for most people, there is also a full color 200 page reference manual and a brief Quick Start guide available for download at the Byte Works' web site. These are available without buying the program, so anyone can check out the capabilities before buying. Promotional codes are available for qualified reviewers.

Device Requirements:
* iPhone, iPod or iPad
* running iOS 5 or later
* 3.0 MB

Pricing and Availability:
techBASIC 1.1 is $14.99 (USD) and is available worldwide in the App Store Utilities category.

Based in Albuquerque, New Mexico. The Byte Works has been creating quality "apps for people who think(TM)" since 1982 when the company was founded by Mike Westerfield. Current directions include apps for scientific programming, calculators and astronomy programs for iOS. Past efforts include developing the Apple Programmers Workshop and the award winning ORCA line of compilers for the Apple IIGS, the HyperLogo(TM) scripting language for HyperStudio(TM), and MediaBlender(TM), a multimedia authoring tool for education. Copyright (C) 2011 The Byte Works. All Rights Reserved. Apple, the Apple logo, iPhone, iPod and iPad are registered trademarks of Apple Inc. in the U.S. and/or other countries.


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