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Kurt Roeckx found a typo in the equations describing how the
accelerometer is corrected by the 5V reference measurement.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Allow TeleMetrum to be operated with the antenna pointing downwards on
the pad. This provides some additional flexibility when designing an
ebay.
The accelerometer calibration levels are flipped around to match, so
no re-calibration should be required.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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Need to stay in pre-flight mode until we've gotten enough sensor data
to calibrate things appropriately. The conversion from a unified
ao_flight.c file was just broken here.
Signed-off-by: Keith Packard <keithp@keithp.com>
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The flight code mashed together data processing, filtering and actual
flight managament into one giant pile. Split things up so that we
have:
ao_sample.c: Sensor data processing. Reads the ring, handles calibration
ao_kalman.c: Filter the data to track the accel/speed/height values
ao_flight.c: Flight state management, specific to rocketry.
The plan is to re-use ao_sample.c and ao_kalman.c for hardware not
specifically designed for rocketry, like TeleNano.
Signed-off-by: Keith Packard <keithp@keithp.com>
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