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External compass QMC5883L calibration error (99) on APM 1.0

Posted by mehrdad on March 18, 2018 at 3:40pm

I bought 3.3 volt external compass QMC5883L and add its library on Arducopter version 3.2.1
my hardware is APM 1.0, and driver header files located at here however when edit config.h and ArduCopter.pde to make instant of driver, in calibration process in mission planner it says , it can read 3 date and error #99
any help really appreciated

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Replies

mehrdad March 19, 2018 at 8:31am

to check wiring and hardware healthy I use simple Arduino I2C example on APM 1.0 platform and it's worked , but no success to run AP compass lib example

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