[OpenTRV-dev] The news !

[Mike Stirling]

On 21/03/13 07:49, Damon Hart-Davis wrote:
> Very good, thanks.
>
> I'm astonished that this isn't doing end-stop sensing by current draw since the end-stop is not going to be in a fixed position between valve heads; are you sure that the sensor isn't to help get intermediate positions consistently instead (for partially opening the valve to a given %age, having calibrated)?
>
> Rgds
>
> Damon

The opto-reflective switches are for counting revs.  They detect 
end-stop either by current (possibly easiest for detecting off-load) 
and/or load related changes in rotational speed.