On Wednesday, November 6, 2013 3:11:05 PM UTC-6, skypuppy wrote: > > Why in the world would anyone set analog in voltages as 1.8V??? > Everything I have and know about uses 0-5V. > I freely admit I am a complete newbie at the BeagleBone Black (BBB), but > come ON. > I have an unverified theory that circuitry in the processor chip is unable > to handle 5V in, but couldn't they have used a wider trace or something? > I purchased 2 BBB's to use on for monitoring engine temps (4), 3D > positioning, G-forces experienced, and airspeeds. All my A/D chips output > 0-5V while only a couple support I2C. I was all excited about the BBB > until I actually spent nearly $300 only to find out it's major limitation. > I assumed EVERYONE in the embedded world worked on 5V analog in, like > Arduino and Raspberry Pi. > Does the Arduino have I2C? > Lots of reading seems to indicate, also, that not many versions of Linux > or Android for BBB support graphics acceleration in hardware that is > available in the BBB. <sigh> > > Allow me to add an example: AD594 and AD595 thermocouple chips output the temps in a 0-5V range.
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