\n
![\"\"](\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F12887254%2F9570b8c640c616bd398b3139b7a4da5e%2FBNO08X_orientation.png?generation=1751882266347594&alt=media\")
Hi, maybe its a bit late that I still didn't figure it out but I just wanted to be sure
\nby assuming the sensor is wore in the right hand in the correct position could someone explain what each acceleration axis points to?
", "messages": [ { "id": "3243173", "postDate": "07/06/2025 20:27:31", "content": "Hi, maybe its a bit late that I still didn't figure it out but I just wanted to be sure
\nby assuming the sensor is wore in the right hand in the correct position could someone explain what each acceleration axis points to?
", "rawMarkdown": "Hi, maybe its a bit late that I still didn't figure it out but I just wanted to be sure\n\nby assuming the sensor is wore in the right hand in the correct position could someone explain what each acceleration axis points to?", "votes": null }, { "id": "3243268", "postDate": "07/07/2025 00:42:04", "content": "I couldn't find any information about the axes in the BNO085 datasheet, but this guide for the BNO055 states that pitch is rotation around the X-axis, roll is rotation around the Y-axis, and yaw is rotation around the Z-axis. From the installation image and the guide image, it seems that the X-axis is the lengthwise direction of the wrist, the Y-axis is the direction of the thumb and little finger, and the Z-axis is the normal direction of the base. I think this rule is probably the same even if the model number is different.
\nI'm not entirely confident, but I hope this helps!
You have swapped the X and Y Axis.
\nThere is an image of the axis in the BNO085 datasheet and the image of the sensor worn on the \"underside\" of the wirst shows the mounted orientation: Y is inline with the forearm, X is pointing in the direction of the thumb (when wlrn on the right hand) and Z is the normal dircetion / facing away from the palm.
Thank you for reply!
\nBased on these images, I have determined that the X-axis is the axis from the shoulder to the wrist. I have made this determination based on the white circle mark in the upper left corner. Are there any other factors to consider?
yeah thats what I noticed
", "rawMarkdown": "yeah thats what I noticed", "votes": null }, { "id": "3243561", "postDate": "07/07/2025 09:59:38", "content": "I think you are looking at the wrong datasheet. Your image is based on the BNO055, whereas this competition uses the BNO08X (https://www.ceva-ip.com/wp-content/uploads/BNO080_085-Datasheet.pdf)
\n
Furthermore, my assumption (Y is aligned with the forearm) is supported by visualizing the rotated XYZ axis during various gestures. For example, the Y-axis is always pointing approx. straight up during the \"Write name in the air\" gesture.
", "rawMarkdown": "I think you are looking at the wrong datasheet. Your image is based on the BNO055, whereas this competition uses the BNO08X (https://www.ceva-ip.com/wp-content/uploads/BNO080_085-Datasheet.pdf)\n\n\nFurthermore, my assumption (Y is aligned with the forearm) is supported by visualizing the rotated XYZ axis during various gestures. For example, the Y-axis is always pointing approx. straight up during the \"Write name in the air\" gesture.", "votes": null }, { "id": "3243583", "postDate": "07/07/2025 10:21:00", "content": "I was wrong.
\nIt seems correct!
\nThank you for sharing this datasheet. I am going to repair my code🙏
I couldn't find any information about the axes in the BNO085 datasheet, but this guide for the BNO055 states that pitch is rotation around the X-axis, roll is rotation around the Y-axis, and yaw is rotation around the Z-axis. From the installation image and the guide image, it seems that the X-axis is the lengthwise direction of the wrist, the Y-axis is the direction of the thumb and little finger, and the Z-axis is the normal direction of the base. I think this rule is probably the same even if the model number is different.
\nI'm not entirely confident, but I hope this helps!
You have swapped the X and Y Axis.
\nThere is an image of the axis in the BNO085 datasheet and the image of the sensor worn on the \"underside\" of the wirst shows the mounted orientation: Y is inline with the forearm, X is pointing in the direction of the thumb (when wlrn on the right hand) and Z is the normal dircetion / facing away from the palm.
Thank you for reply!
\nBased on these images, I have determined that the X-axis is the axis from the shoulder to the wrist. I have made this determination based on the white circle mark in the upper left corner. Are there any other factors to consider?
I think you are looking at the wrong datasheet. Your image is based on the BNO055, whereas this competition uses the BNO08X (https://www.ceva-ip.com/wp-content/uploads/BNO080_085-Datasheet.pdf)
\n
Furthermore, my assumption (Y is aligned with the forearm) is supported by visualizing the rotated XYZ axis during various gestures. For example, the Y-axis is always pointing approx. straight up during the \"Write name in the air\" gesture.
", "votes": null, "replies": [ { "id": 3243583, "author_name": "soutasakurai", "author_url": "", "post_date": "07/07/2025 10:21:00", "content": "I was wrong.
\nIt seems correct!
\nThank you for sharing this datasheet. I am going to repair my code🙏
yeah thats what I noticed
", "votes": null, "replies": [] } ] } ] } ], "raw_markdown_by_id": { "3243173": "Hi, maybe its a bit late that I still didn't figure it out but I just wanted to be sure\n\nby assuming the sensor is wore in the right hand in the correct position could someone explain what each acceleration axis points to?", "3243268": "I couldn't find any information about the axes in the BNO085 datasheet, but this guide for the BNO055 states that pitch is rotation around the X-axis, roll is rotation around the Y-axis, and yaw is rotation around the Z-axis. From the installation image and the guide image, it seems that the X-axis is the lengthwise direction of the wrist, the Y-axis is the direction of the thumb and little finger, and the Z-axis is the normal direction of the base. I think this rule is probably the same even if the model number is different.\nI'm not entirely confident, but I hope this helps!\n\nhttps://www.bosch-sensortec.com/media/boschsensortec/downloads/application_notes_1/bst-bno055-an007.pdf?utm_source=chatgpt.com", "3243502": "You have swapped the X and Y Axis.\nThere is an image of the axis in the ~~BNO055~~ BNO085 datasheet and the image of the sensor worn on the \"underside\" of the wirst shows the mounted orientation: Y is inline with the forearm, X is pointing in the direction of the thumb (when wlrn on the right hand) and Z is the normal dircetion / facing away from the palm.", "3243511": "Thank you for reply!\nBased on these images, I have determined that the X-axis is the axis from the shoulder to the wrist. I have made this determination based on the white circle mark in the upper left corner. Are there any other factors to consider?", "3243533": "yeah thats what I noticed", "3243561": "I think you are looking at the wrong datasheet. Your image is based on the BNO055, whereas this competition uses the BNO08X (https://www.ceva-ip.com/wp-content/uploads/BNO080_085-Datasheet.pdf)\n\n\nFurthermore, my assumption (Y is aligned with the forearm) is supported by visualizing the rotated XYZ axis during various gestures. For example, the Y-axis is always pointing approx. straight up during the \"Write name in the air\" gesture.", "3243583": "I was wrong. \nIt seems correct!\nThank you for sharing this datasheet. I am going to repair my code🙏" }, "source": "meta" }