[Tinyos-host-mote-wg] Re: Re[4]: [Tinyos-2.0wg] Aligning TEP 101 (ADC) with TEP 108 (Resource Arbitration) and 109 (Sensorboards)

[David Gay]

On 5/18/05, Phil Levis <pal at cs.berkeley.edu> wrote:
> The basic notions here are:
> 
> 1) The ADC itself is not an HIL level component. Named sensors compose
> the HIL interface (e.g., InternalTempC, HamamatsuC), etc.
>   o In the case where there are abstract sensors (e.g., the UCLA
> mega-sensor board), they are given abstract names: MDASensorOne,
> MDASensorTwo. Of course, in the MDA case, presenting them in such a
> manner is kind of sketchy (generic sensors would requires configuration,
> or HAL access), but you could do so, if you wanted.

Actually the UCLA sensor board case is a little different. It should
be providing a parameterised interface for it's multi-channel A/D.
However, I would expect a real application to build it's own
components on top of that, e.g., SoilMoistureSensor, which would be
connected to one of the A/D channels, but would also be setting things
like excitation voltages, etc. (via other UCLA-board-specific
interfaces).

David

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