bmp085
Posted: Fri Aug 24, 2012 7:13 pm
Hi,
Ive built a multiwii quad using a wm+, acc and mag and all flying well. I decided to add a bm085 to get alt hold functionality but i got a load of of i2c errors. I found the problem was due to the llc on the baro board, i suspected the fets. I removed the llc and used my existing sparkfun llc that i use for the mag and that solved all the i2c errors.
My remaining problem is that the alt values in multiwiiconf are really noisey, the signal bounces around 243.0 to 243.7. Is this normal or is the sensor faulty too. Also what are the units used for alt as we are about 143 meters above sea level, so its as if the sensor is 100m out if the units are meters.
Any help will be great
paul
Ive built a multiwii quad using a wm+, acc and mag and all flying well. I decided to add a bm085 to get alt hold functionality but i got a load of of i2c errors. I found the problem was due to the llc on the baro board, i suspected the fets. I removed the llc and used my existing sparkfun llc that i use for the mag and that solved all the i2c errors.
My remaining problem is that the alt values in multiwiiconf are really noisey, the signal bounces around 243.0 to 243.7. Is this normal or is the sensor faulty too. Also what are the units used for alt as we are about 143 meters above sea level, so its as if the sensor is 100m out if the units are meters.
Any help will be great
paul