ben-wpan: commercial description

David Reyes Samblas Martinez david at tuxbrain.com
Sun Jun 12 14:36:30 EDT 2011


Some pictures to add to that pretty description :)
http://en.qi-hardware.com/wiki/Ben_WPAN#First_Batch

2011/6/7 Werner Almesberger <werner at almesberger.net>:
> With the atben and atusb boards inching towards tuxbrain's shop, it's
> time to write a proper product description. I thought of the following
> items. (More comments at the end.)
>
> First, there would be a part that's common for atben and atusb, with a
> few placeholders for device-specific details/clarifications.
>
>  <device> is a wireless IEEE 802.15.4 sender/receiver operating in the
>  2.4 GHz band, <device-specific>
>
>  Technical specification:
>
>  - Transmit power up to 3 dBm (2 mW)
>  - Built-in antenna
>  - Standard data rate 250 kbps (non-standard and with reduced range,
>    up to 2 Mbps)
>  - Typical indoors distance between sender/receiver XX m
>  <more>
>  - Linux drivers, hardware design, firmware, and test software are all
>    Open Source and available under Free licenses (GPLv2+, LGPLv2.1+,
>    CC-BY-SA 3.0)
>  - Note: IEEE 802.15.4 is not compatible with WiFi(tm) or BlueTooth(tm).
>    You need a pair of IEEE 802.15.4 devices for communication.
>
> The atben-specific part would be:
>
>  <device> = atben
>  <device-specific> = designed to give the Ben NanoNote short-range
>    wireless connectivity.
>  <more> =
>    - Plugs into the Ben's 8:10 card slot
>    - Requires product-specific Linux driver
>    - Note: this is not an SDIO(tm) device and will only work in
>      products specifically supporting it.
>
> The atusb-specific part would be:
>
>  <device> = atusb
>  <device-specific> = that provides IEEE 802.15.4 connectivity via USB.
>  <more> =
>    - USB(tm) Full-Speed device
>    - Requires product-specific Linux driver
>    - AVR(r) microcontroller with 32 kB flash memory (currently 24 kB
>      used)
>    - Note: firmware currently only supports Linux
>
> Some remarks:
>
> - I kept the technicality at an intermediate level. If it's considered
>  too much, one could drop the following items without significant loss
>  of information:
>
>  - transmit power
>  - built-in antenna
>  - list of licenses
>
>  Also not entirely vital are:
>
>  - "Plugs into the Ben's 8:10 card slot"
>  - "USB(tm) Full-Speed device"
>  - AVR microcontroller
>
> - there's a relatively long list of compatibility notes. I think we
>  need those to make it clear that this isn't just some WLAN or BT
>  device, or that it'll work in someone's Windows PC.
>
> - I left the maximum distance open. The devices from the production run
>  will be a far more reliable base for such measurements than my
>  prototypes, so I hope tuxbrain can provide that data. For reference,
>  my own results were:
>  http://downloads.qi-hardware.com/people/werner/wpan/tmp/apt-wa.pdf
>
> - I didn't mention higher-level protocol support (IPv4/dirtpan and
>  IPv6/6LoWPAN), because area is still under construction.
>
> - we also need to say something about the case, e.g., whether this
>  will be a kit of board + sugru, or what else was decided.
>
> Please comment.
>
> Thanks,
> - Werner
>
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-- 
David Reyes Samblas Martinez
http://www.tuxbrain.com
Open ultraportable & embedded solutions
Ben NanoNote, Arduino, Openmoko
Hey, watch out!!! There's a linux in your pocket!!!




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