[Elphel-support] Sensors

[Andreas Bean]

Stefan de Konink schrieb:
> Op 01-04-10 16:24, Andreas Bean schreef:
> > STMicroelectronics have new sensors on the market. A three axis
> > gyroscope LG4200D and a combined sensor, three axis acceleration and
> > three axis magnetic, LSM303DLH
> >
> <http://www.st.com/stonline/stappl/productcatalog/app?path=/comp/stcom/PcStComRPNTableView.onClickOfRPNLink&code=250145>,
> > Both are digital and have a I²C interface. You might consider adding
> > them to your new board. That would be great!
>
> You mean instead of the Ocean Server module? I thought you actually ment
> an image sensor ;) But considering the specs probably only
> accelerometer/magnetometer. Most likely a daughter board is prefered
> considering the space *and* the magnetic properties.
In fact the magnetic sensor is not so important. The gyros and the
acceleration sensors are enough for flying.
And yes, previously I meant the image sensors. I want to build a flying
full-sphere panoramic cam.
For that we need the help of Oleg, connecting four sensor boards and
combining the pictures of four sensors
into one video frame.
The sensors are 4x4mm each, I think Andrey can find a place for them if
he is interested.
>
> > Whats the best place to connect the devices to the I²C bus and do
> > you know which latency to expect between receiving data from the sensors
> > and sending them out to the motor controllers, given no processing takes
> > place?
>
> It might be that a dedicated processor in a feedback loop, gives better
> results, for example an ardupilot interfaced to the Elphel. Opposed to
> the Elphel doing the k-filters etc.
>
Could be. But let's evaluate the Elphel only version first.
>
> Stefan
Andreas
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