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Technologic Systems’ ARM single board computers for embedded systems, the 7500 series, may be ordered with a battery backed up real time clock. However, unlike RTC chips used for PC’s these come with no static RAM. I missed this RAM for an application I was working on and therefore modified the board. This made this computer board a perfect fit for my client.
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Matrix codes appear everywhere. They often represent a URL pointing to a web page where more information can be found. Matrix codes can be scanned and decoded using a smart phone camera combined with an appropriate application. I can print a matrix code on my card which points to my vCard file on a server. A person I gave my card can scan the code and get more up to date and complete contact information than that printed in clear text. But I don’t like the idea of leaving my contact information openly on a server ready for search robots and other snoopers to take. Therefore the need for encryption.
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