1690AW: [Raspberry_Pi_4-Ham_RADIO] framework for self-starting ham application images on Raspberry pi
- May 14, 2013
> Ideas for framework of small computer board:Line in should be in stereo (for using with sdr hardware that gives i/q
> Eliminate the SDcard completely and have on board flash memory, lets go
> for a gigabyte....
> connections for programmer?
> open source firmware/OS if possible
> include a basic http interface, much like a consumer wifi router has...
> with backup/load capability.
> do all configuration/loading over Ethernet.
> hit the reset button and be up and running....
> should have a few usb host slots... (sound fobs, memory stick)
> would be good to have it powered by 12-15vdc like our radios, makes for
> easy reliable power source.
> expansion connector for modem board(s)
> some basic led indicators. (ability to disable lights to conserve power
> some basic I/O would be handy:
> - few channels of A/D input say 0 - 5vdc range
> - maybe a few channels of D/A output, 0 - 5vdc?
> - microphone input
> - speaker output
> - digital inputs, +5 vdc with optional internal pull-ups to make for easy
> switch hookup.
> - digital outputs, +5 vdc, with optional internal pull-ups, probably open
> collector to ground
> suitable for radio ptt or relay sinking.
> - ???
> Any other suggestions ?
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