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spirilis

5V jack options

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For those who would like to power their BBB from any 5V source (and get the VDD_5V rail powered on the cape for higher current draw), just passing this along since I ordered 1 of each package last month:

 

http://www.amazon.com/gp/product/B002QWNZHU/ref=oh_details_o05_s01_i00?ie=UTF8&psc=1 - 2.1x5.5mm plug with screw terminals

 

 

Also if you have any adapters with the 2.1x5.5mm plug and want to use it with something else, here's the comparable jacks:

http://www.amazon.com/gp/product/B003MHUN7S/ref=oh_details_o05_s01_i01?ie=UTF8&psc=1 - 2.1x5.5mm jack

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FYI in the reviews someone noted that the + and - markings were inconsistent, I.e. sometimes the terminal labeled "+" went to the center and sometimes it went to the sheath. Check this on yours before using I guess. I tried one of mine earlier and it was correct so I dunno. Built a bench power source (home-etched PCB) with buck converters producing 5V and 3.3V out of my 13.6V/6A bench PSU and tried powering my BBB with one of these jacks, it worked fine. Might test them to see if they add any unexpected impedance to the circuit too.

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