[SATLUG] Alternatives to Raspberry Pi
wmail at dslextreme.com
Mon Aug 11 11:36:01 CDT 2014
>Some of the ham guys who are getting into allstar(*) (linux based VoIP
>for Ham Radio) are finding out that the Pi simply wont suffice with the
>lack of USB power for the modified USB audio dongles.
The original RPi had problems passing power from the power input to the
USB jacks. The solution then was to get a *very* cheap USB hub from Big
Lots or similar and power the Pi and your peripherals from it. Minor
manufacturing and layout changes considerably improved this over time,
so check the dates and board revisions on such claims.
The new RPi model B+ supports 1.2A through the power input, most of
which is available to the four USB ports thanks to better power
regulators on-board. Not using the Ethernet port cuts power consumption
quite a bit, which also makes battery operation more practical. The same
powered hub solution still works if you have a high-drain non-compliant
That said, the original and continuing goal of the Raspberry Pi project
was to develop a child's interest in programming to increase university
computer department applicants. That it also works for "off-label" stuff
like ham radio, museum exhibits, or making beer is a fortunate accident.
Be well - or at least have interesting symptoms!
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