Originally posted by perdification
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The MS5611 is not a crappy baro sensor!... these are used in the "3rd generation" clone boards and it's been upgraded until it's now the same baro that is used on the original Ardupilot Mega v2.5+!
The crappy ones are the earlier clone versions using BMP085 Barometer.
The APM isn't weaker than NAZA in alt hold... the problem is GPS position hold... NAZA gps is slightly more idiotproof... while the APM 2.5 is upgraded with MPU6000 IMU that offers a single serial SPI port for GPS connectivity, the APM/MWC clones are still using MPU6050 which only has i2c ports available for GPS... very much less stable and prone to interference and errors in flight. (Plus a lot of noobs simply mount their GPS next to the FC, welcome to interference central!)
Did you know that there is a i2c error counter in the multiwii mission planner? hehe... did you ever wonder what thats for?
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