kriswiner
commented
6 years ago Happy to help you get the USFS working, etc but I am not able to spend the time to help you answer your project-specific questions pro bono.
Kris
On Tue, Jul 25, 2017 at 2:06 PM, seamaster101 notifications@github.com wrote:
Hi Kris, I got my Ultimate fusion sensor board and I got it working right away last night with your example files. I'm still waiting for my Butterfly board to show up. My final configuration will be the ultimate fusion sensor interfaced to butterfly board, but for now I'm using teensy 3.2 Thank you for the examples - that was easy! Now the hard (for me) part...
Here is the challenges that I'm having with my project. I would appreciate if you can help me with solving the following issues:
1.
My goal was to create a roll/pitch compensated compass and select most favorable ranges of the sensors for my application (compass attached to a 50+ feet 25 ton boat, that we can't wave around in figure eight to calibrate) Q: what ranges of the accelerometer and gyro I select to get me the best/smoothest output results without too much lag? Considering the size of the object obviously even in worst conditions, there will be no large values on all of the sensors axis. What are the benefits (if any) choosing lower axis scales for accelerometer and the gyro? 2.
It is challenge to calibrate the compass attached to a vessel (can't wave it around in figure eight) obviously different calibration routine is needed, or is it? No idea how to accomplish that. I read the documentation and understood that files with pre-calibrated parameters can be send to the sensor fusion processor. First I need some method to do the calibration with the sensor mounted to the boat. Here is what I'm thinking could be used: Case 1: Go to manual calibration mode, drive the boat in a slow circle in calm water over and over maybe for 720deg, keep collecting and evaluating the magnetometer calibration data and if satisfied notify and store data for future warm start. Case 2: auto-calibration mode where a routine constantly collects calibration data and stores the data for future use if better calibration than the existing one is achieved. Can you please somehow help with that? I think it will be beneficial to other users as well 3.
Output compensated Yaw, Roll, Pitch and Rate of Turn outputs. The yaw, roll and pitch work great now with the hardware fusion, but how do I output compensated gyro ROT in deg/s data? It is ged/sec data of the axis perpendicular to the earth's surface. I experimented with outputting "gx" variable for test purposes and it "kind of works", but the output is very jumpy and as the variable is from single axis, I presume it is not accurate at different roll and pitch angles. Any help here will be greatly appreciated! Is there a variable that fusions and smooths the Z gyro axis?
thank you for your time!
— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/kriswiner/EM7180_SENtral_sensor_hub/issues/12, or mute the thread https://github.com/notifications/unsubscribe-auth/AGY1qsq4r0BmeTl8yY6AUzFKguSCYIrmks5sRljkgaJpZM4OjIOm .
seamaster101
Hi Kris, I got my Ultimate fusion sensor board and I got it working right away last night with your example files. I'm still waiting for my Butterfly board to show up. My final configuration will be the ultimate fusion sensor interfaced to butterfly board, but for now I'm using teensy 3.2 Thank you for the examples - that was easy! Now the hard (for me) part...
Here is the challenges that I'm having with my project. I would appreciate if you can help me with solving the following issues:
My goal was to create a roll/pitch compensated compass and select most favorable ranges of the sensors for my application (compass attached to a 50+ feet 25 ton boat, that we can't wave around in figure eight to calibrate) Q: what ranges of the accelerometer and gyro I select to get me the best/smoothest output results without too much lag? Considering the size of the object obviously even in worst conditions, there will be no large values on all of the sensors axis. What are the benefits (if any) choosing lower axis scales for accelerometer and the gyro?
It is challenge to calibrate the compass attached to a vessel (can't wave it around in figure eight) obviously different calibration routine is needed, or is it? No idea how to accomplish that. I read the documentation and understood that files with pre-calibrated parameters can be send to the sensor fusion processor. First I need some method to do the calibration with the sensor mounted to the boat. Here is what I'm thinking could be used: Case 1: Go to manual calibration mode, drive the boat in a slow circle in calm water over and over maybe for 720deg, keep collecting and evaluating the magnetometer calibration data and if satisfied notify and store data for future warm start. Case 2: auto-calibration mode where a routine constantly collects calibration data and stores the data for future use if better calibration than the existing one is achieved. Can you please somehow help with that? I think it will be beneficial to other users as well
Output compensated Yaw, Roll, Pitch and Rate of Turn outputs. The yaw, roll and pitch work great now with the hardware fusion, but how do I output compensated gyro ROT in deg/s data? It is ged/sec data of the axis perpendicular to the earth's surface. I experimented with outputting "gx" variable for test purposes and it "kind of works", but the output is very jumpy and as the variable is from single axis, I presume it is not accurate at different roll and pitch angles. Any help here will be greatly appreciated! Is there a variable that fusions and smooths the Z gyro axis?
thank you for your time!