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Design a Barcode Scanner With Reduced BOM, Not Reduced Functionality
9/21/2012

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Figure 2: The connections between the ADC and port pins of a 32-bit MCU to a CCD.
Figure 2: The connections between the ADC and port pins of a 32-bit MCU to a CCD.

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naperlou
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Blogger
Good design approach
naperlou   9/21/2012 11:09:56 AM
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Parker, I am very impressed by your ability to implement this unit with a single MCU.  This is becoming the trend.  MCUs with 32-bit processors and lots of supporting functionality (e.g., ADCs) on chip are making it much easier to implement designs quickly and more reliably.  I wonder how much of this implementation is in the software as oppossed to discrete logic as in the past.

Nancy Golden
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Platinum
Re: Good design approach
Nancy Golden   9/21/2012 12:22:49 PM
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I am impressed too - especially by the thorough but easy to understand technical explanations provided to explain barcode scanner technology. Thanks for a very interesting article that just added to my understanding of this extremely utilized technology that is often taken for granted as well as the possibilities, something that I had not given much thought to before your very well-written article.

mrdon
User Rank
Platinum
Re: Good design approach
mrdon   9/22/2012 12:52:21 AM
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naperlou, I agree. The ability to package a complete system on a chip (SoC) is very impressive. With consumer electronic devices being small in size, microcontroller manufacturers are designing and packaging complete product designs on a piece of silicon. The Silicon Lab's Precision32 MCU is quite impressive because a complete barcode scanner is placed into a small iC package. This article is definitely worth sharing with my ITT Tech Students. Great article Parker!

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