Evolution of a Blog

This blog has evolved as I have as a maker. It starts at the beginning of my journey where I began to re-tread my tires in the useful lore of micro electronics and the open-source software that can drive them. While building solutions around micro-electronics are still an occasional topic my more recent focus has been on the 3D Printing side of making.

Monday, June 10, 2013

Technology Alternative - BeagleBone Black

This post is part of a thread titled "What Technology to Choose for a Physical Interface Project"

BeagleBone Black

  • BeagleBone Black Hardware (50):
    • 1ghz ARM CPU
    • 512mb of Memory
    • Storage on Flash Card or USB
    • Graphics Accelerator and Floating Point Processor
    • Initially developed by Texas Instruments in 2008.  Current device seems to have been released at an RPi competitive price point.
  • RPi Software:
    • Fully functional Linux implementation with Javascript as primary programming language (though Python is also supported).
    • Javascript IDE supports interactive debugging and as such has some similarity to Visual Basic.
    • Vast selection of software available to meet development requirements.
    • Initial impression is that user community is not as strong as that of the RPi.
  • Provides 12bit resolution for Analog to Digital conversion via onboard hardware.  Inputs must be below 1.8v.
  • Supports several LCD displays as add-ons, called “capes”.

(1) The breadboard provides a voltage divider that uses a variable resistor to deliver a variable voltage for simulating a test measurement.  It is also supporting a tri-colour LED as a status monitor while a test is running.
(2) LCD ‘cape’ shown is one of several options for a User Interface.

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