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How to set the EEPROM values

Last week I had a touch time trying to set the proper throttle failsafe PWM value. The default is 975 and i wanted to set it to 1030 . I put

#define THROTTLE_FS_VALUE 1030

in the APM_config.h and uploaded the code, but in the Setup>Show i still saw the

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Strange issue with magnetometer

I had a crash a couple of weeks ago that damaged the IMU. It would spin up but would not auto stabilize. After replacing the IMU I got it running again but as long as I have the magnetometer plugged in, the boards will not light up at all. All I get

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paparazzi capabilty

i need some help please

can the paparazzi handle a plane with these specs

1. weight >60 kg

2. wingspan 4m

3. altitude >3500m

4. range >100 km

 

 can someone also please recommend some commercial autopilots that can achieve this

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APM Coding and Compile Issues

Hey Everybody I'm completely new at the ArduPilot/APM thing so please forgive my stupidity.  I've downloaded and printed out the entire APM 1.02 source code so i can analyze and fully understand how it works before I just blindly set it in an aircraf

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Airspeed Sensor

Hi,

 

I had a couple of questions regarding the airspeed sensor

 

1) What equations are used to actually calculate the airspeed? It must have to do with both the dynamic pressure and the density

 

2) where is the density coming from? how is it calculated?

 

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Small issue with UBlox GPS

Did around 10 flights recently with the ArduPilot Mega and a UBlox GPS in mainly FBW-A and RTL modes.  Usually, when i boot up the board, the ABC lights flash during the IMU calibration and subsequently the A light blinks for a few seconds and goes s

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Best sensor suite right now?

I am looking for suggestions for the best autopilot/quadrotor MEMS sensors available now, or over the next 4-6 weeks. The Invensense MPU-6000 looks good, but I'm having trouble finding a mag (HMC5843 has been discontinued; there is no inventory anywh

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Arducopter crash

 While testing the Arducopter pos./alt. hold function (ArdupiratesNG) something goes terribly wrong.
Initially it was a success but suddenly the copter starts to drift and within a few seconds it was beyond a controllable visual range. The flight ends

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