Groudaut

Thanks for the answer. Well, It's seems a little bit more complicate, but maybe not... I have to go through and, archive quaternions from IMU3.0, get or write some codes and make some new tests. I will come back when I will proceed to all of this steps. If anyone else have other solutions, or already solve this orientation problem, please tell me. Gil.

Hello, I have IMU bricklet 3.0 and get Yaw, Pitch and Roll data. I want to calculate the position [X Y Z] in earth frame of a given point (x, y, z coordinates in IMU reference frame is [1, 0, 0] ) according to Pitch, Roll and Yaw data from IMU. I have difficulties to find the rotation matrix R (3x3) to get X,Y,Z. The formula is [X,Y,Z]= [x,y,z] * R. I worked for hours on this and tried many differents rotation matrix according to this source : https://en.wikipedia.org/wiki/Euler_angles. I don't know in witch order the 3 rotations are done (around IMU axes) and I don't know which axes are used for Pitch Yaw and roll reference in the IMU... I think IMU use extrinsic references axes : for example when roll is about 30°, if I change the pitch the heading change also. I found this discussion about BNO055 sensor (used in IMU 3.0) but it doesn't solve my problem ! https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/BNO055-How-to-use-Euler-angles/td-p/45085 Does someone has the correct rotation matrix ? or could help me (ideas to proceed some tests, some references....) Thanks Gil.

OK, so simple ! Thanks for your help.

Hello, First of all, I'm beginner with python and tinkerforge brick/briklet. I have a system with hat brick + 2 IMU V3 Bricklet + 1 GPS V3 bricklet. My script run well to acquire data and do what I want, which is a good thing. But, I can't manage to set the status led config for IMU(s). I would like to set the led to heartbeat when my system is recording but I can't manage to do it. I tried this after ipcon.connect(...) : BrickletIMUV3.set_status_led_config(2) It gives me this error : TypeError: set_status_led_config() missing 1 required positional argument: 'config' Does some one could help me for this ? Thanks in advance