Andreas Bean schrieb: > 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. > I have to correct myself. The sensors are under evaluation and will be available in the future. And with 4x4mm I mean the MEMS not the image sensors. That was confusing I think. The MEMS are interesting for image stabilization, that's why I'm thinking it's of general interest to add them to the new board.
>>> 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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