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I’m not looking for a Raspberry Pi or similar, these consume too much power. I’m looking for a device that uses significantly less power than a Pi, but still runs some flavour of Linux. So far I’ve found Giant Board (claims 350mW) and ACME Systems (around 270 to 300mW at idle). The application already runs on a MangOH Red, but this consumes too much power. My device will run off solar + battery, so needs to use as little power as possible, which means smaller solar panel.

I require the following:

• UART i/o.
• 128 to 256MB RAM (no more).
• Ability to lightly process audio, so probably at least 400MHz, single core.
• Audio input (optional, I can get this via another chip via i2c/spi/UART).
• Any flavour of Linux, Debian derivative preferred.
• 3G/4G connectivity (although this will probably need to be an extra add-on). I know this will use massive amounts of power, but it will be powered off most of the time.
• I do not require any other peripherals, but USB for development is necessary.

submitted by /u/psiphi75
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