MultiWii

Here is an update on the MMA7455, Very interesting device to say the least. It requires no Calibration and when it is perfectly level, it output a value of 0 for both the X and Y axis. Because it outputs a negative number that relates to a negative tilt but it is in the form of two's complement http...

ziss_dm,

This is GREAT NEWS, thank you. It was rumored that the ITG3205 was an OEM version of the ITG3200, this is direct evidence to this. Thanks again,

Please Alex, Can you include the following code for the Y4 Mixing? Please, Pretty Please? . . . #define Y4 . #elif defined(QUADP) || defined(QUADX) || defined(Y4) . #ifdef Y4 // Special Mix for V-Tail or Y4 motor[0] = rcCommand[THROTTLE] + axisPID[PITCH] - axisPID[YAW]; //REAR_R motor[1] = rcCommand...

I ordered two of these for testing, will post an update of mu findings.

Alexinparis wrote:

invw = Gyro Sensitivity

you make a confusion between the gyro sensitivity and its weight in the mix formula.

I believe you are correct. I changed the value for invW to 300 but I have only tested it with Gyro, but Much Improved.

Thanks.

invw = Gyro Sensitivity you make a confusion between the gyro sensitivity and its weight in the mix formula. But is this the line of code that set the Sensitivity? gyroFactor = deltaTime/300e5; //empirical, depends on WMP on IDG datasheet, tied of deg/ms sensibility the 300e5 is the Maximum Angular...

This is one of the key to obtain a better stable mode. This weight traduces the importance of short term angle estimation computed via the Gyro only, this term is much less noisy than the angle estimation computed via the ACC. But there is a limit: we still need the ACC angle because with a gyro on...

Great Job Alex with this great piece of Mastery of coding. I have a question please, In version 1.6, you had 100 as the wGyro and the invW values but in the pre 1.7, it was changed to 300. What is the basis for this change? Thank you 1.6 uint8_t wGyro = 100; // gyro weight/smooting factor static flo...

However, in an auto-leveling environment, why would more be required? I read where it stated, 8 bits for up to 4 g and 10 bits for 8g, why is this so? I have no idea. There may be the possibility of bypassing the ADC and wiring the Accelerometer directly to the Arduino Analog ports. So, the title fi...

Just my opinion, situations like this has a way of becoming a cult or fad, like the Hula Hoop. If I may suggest adding a programmer's forum (corner).

Here is an interesting find, not sure of the quality but the cost is very nice. Going to purchase four of them next week for testing. The documentation states, I2C. Hmm.

3 Axis Digital Accelerometer


http://gadgetgangster.com/find-a-projec ... ectnum=322