Crazy GUI readings (solved)

[Wil Chris]

When I connected my multiwii crius SE controller to the pc and started the GUI I got some crazy readings. It dosent help to calibrate the magnetometer and accelerometer. The values changes all the time everything for 10 to 100.

I have used this controller for a quad and a hexacopter before and i haven't had any trouble with it.

[chris ables]

I had this problem once and i was using the crius ftdi and the solder joints was not good on the ftdi at the connection pins on the ftdi board to connector ! I resoldered the pins and fixed the problem ! Only attempt this if you can solder pins good because you can mess it up ! Not saying this is your problem but that looks real familiar to what mine was doing . If you have the same problem i had you should be able to move aircraft while connected to gui and it will lose connection when you move it !

[tovrin]

Chris, could this be a case of needing the pullups enabled?

[chris ables]

Yes tovrin but i see he is using 2.0 and i think they are already enabled ! I may be wrong though. Yes ive seen that with pullups disabled !

[Wil Chris]

I have used 2.0, the 2.1 development version and 2.1. Same problem on all versions.

Maybe the card is damaged?

[chris ables]

In the firmware be sure you have enable 12c pullups uncommented ! You do have a hexacopter correct ? I see this in your pic of gui ! Also be sure you use the same version gui as the firmware that you are using ! is this the first time you have compiled and flashed firmware to those crius boards ? I have compiled some files for two diffrent people for the crius boards and liked the results ! If you would like me to do one for you just pm me your setup and an email to send you one !

[chris ables]

The ACC values are stuck to +/-400
This is one of the most common issue with ACC.
The accelerometers need to be calibrated at least once via the RC sticks combination (low throttle + pitch stick low + yaw full left).
Once this step is done, the accelerometer neutral value is stored in the EEPROM.
Without this step, the accelerometer values won’t correspond to anything, and sometimes there are anarchical bars in the GUI.
The values are typically 0/0/200 or 0/0/250 or 0/0/512 after a good calibration, depending on the ACC type.

[chris ables]

The GUI itself doesn’t start or seems to give some errors
Make sure you have the correct JAVA runtime installed, the latest version can be downloaded here.
If you encounter problems with JAVA, I recommend uninstalling your current JAVA version and installing the latest version again.
If possible, try to run the software from another computer.

The GUI version is generally only compatible with the sketch version (MultiWii sketch 1.5 vs MutiWiiConf 1.5 for instance)

[chris ables]

My last 2 post came off of FAQ tab on the multiwii.com page ! Just wanted to be sure you know this also !

[Wil Chris]

PROBLEM SOLVED!

Looks like chris ables was right from the start. It was something wrong with the connection. A friend of mine soldered on new pins on the cards FTDI output and I have changed the FTDI and everything work perfect again.

[tovrin]

incredibly common issue, i about cried when my new IMU showed up and wasnt working, but after i resoldered everything for the third of fourth time it finally worked right...