I am planing to use LSM303DLHC in my project. It will be inside aluminum box. for acceleration, it will not be a problem, but how about for magnetometer ?
Will alumina shield earth magnetic field that i am trying to measure ? I can deal with 10% errors
Fist, temperature should be above zero. Second, I need as much energy density as I can get. Third, it should fit inside that tiny box. Yes, I understand, I could make use of larger box, mount sensors outside, but I need very compact and robust system, that could be hidden inside car, and can still function even if someone try to remove it, or do other bad things.
Also, current drain will be very small, in range of 100mA, so any lipo battery can supply this current, yes not for long, but can.
Also, 99.99% of the time system will be using main lead acid battery, and only if someone stole my car, and park inside garage or whatever he do, my system should work. (MEMS device in red circle)
Fist, temperature should be above zero. Second, I need as much energy density as I can get. Third, it should fit inside that tiny box. Yes, I understand, I could make use of larger box, mount sensors outside, but I need very compact and robust system, that could be hidden inside car, and can still function even if someone try to remove it, or do other bad things.
Also, current drain will be very small, in range of 100mA, so any lipo battery can supply this current, yes not for long, but can.
Also, 99.99% of the time system will be using main lead acid battery, and only if someone stole my car, and park inside garage or whatever he do, my system should work. (MEMS device in red circle)
