# Ask **URL:** https://forum.hello-robot.com/c/ask/5.md?page=1 [Latest](https://forum.hello-robot.com/latest.md) · [Categories](https://forum.hello-robot.com/categories.md) **Page:** 2 --- ## [Stretch Not Starting-Up Properly](https://forum.hello-robot.com/t/stretch-not-starting-up-properly/323)
**Author:** [@matsumoto](https://forum.hello-robot.com/u/matsumoto)\ **Replies:** 17\ **Last updated:** [February 9, 2026, 7:39pm UTC](https://forum.hello-robot.com/t/stretch-not-starting-up-properly/323 "2026-02-09T19:39:57Z")
The Stretch was working well until today. However, now, when I turn on the Stretch with the main power switch, it appears to turn on (laser range finder spins, runstop light turns on). When I push the run stop, it beeps … --- ## [Install stretch\_ros in Docker](https://forum.hello-robot.com/t/install-stretch-ros-in-docker/1442)
**Author:** [@Jinyao\_Zhou](https://forum.hello-robot.com/u/Jinyao_Zhou)\ **Replies:** 5\ **Last updated:** [February 9, 2026, 6:56pm UTC](https://forum.hello-robot.com/t/install-stretch-ros-in-docker/1442 "2026-02-09T18:56:33Z")
Hey team! I’m wondering if you have an existing docker image with necessary libraries especially stretch\_ros built in? I’m trying to install it in a ubuntu 22.04 ros2 humble image, following this instruction: Updating yo… --- ## [Stretch not powering on (during unboxing)](https://forum.hello-robot.com/t/stretch-not-powering-on-during-unboxing/1452)
**Author:** [@VictoriaYang](https://forum.hello-robot.com/u/VictoriaYang)\ **Replies:** 1\ **Last updated:** [February 7, 2026, 3:47pm UTC](https://forum.hello-robot.com/t/stretch-not-powering-on-during-unboxing/1452 "2026-02-07T15:47:26Z")
Hello Stretch3 community, Our lab recently received our Stretch3 and I was following the unboxing instructions and went to power the robot on for the first time, however the LED did not light up and there was no perceiv… --- ## [I lose control when i connect Stretch's robot computer with ML PC by moonlight and sunshine](https://forum.hello-robot.com/t/i-lose-control-when-i-connect-stretchs-robot-computer-with-ml-pc-by-moonlight-and-sunshine/1449)
**Author:** [@Mallak\_Alqaisi](https://forum.hello-robot.com/u/Mallak_Alqaisi)\ **Replies:** 1\ **Last updated:** [February 6, 2026, 10:00pm UTC](https://forum.hello-robot.com/t/i-lose-control-when-i-connect-stretchs-robot-computer-with-ml-pc-by-moonlight-and-sunshine/1449 "2026-02-06T22:00:45Z")
Hello everyone, I’m having an issue with the connection between Stretch’s robot computer and the ML PC. I can see the desktop, but I lose control of the robot computer and cannot interact with anything on the screen. I… --- ## [PDDL for Pick-and-Place Task](https://forum.hello-robot.com/t/pddl-for-pick-and-place-task/1405)
**Author:** [@JonathanDistler25](https://forum.hello-robot.com/u/JonathanDistler25)\ **Replies:** 3\ **Last updated:** [February 6, 2026, 9:15pm UTC](https://forum.hello-robot.com/t/pddl-for-pick-and-place-task/1405 "2026-02-06T21:15:08Z")
I wanted to create and then solve a PDDL plan and then carry it out with the Stretch Robot. I was wondering if there is any preexisting functionality for basic pick-and-place tasks? --- ## [Odom drifting far away when using slam\_toolbox](https://forum.hello-robot.com/t/odom-drifting-far-away-when-using-slam-toolbox/1440)
**Author:** [@jaj](https://forum.hello-robot.com/u/jaj)\ **Replies:** 6\ **Last updated:** [February 5, 2026, 5:24pm UTC](https://forum.hello-robot.com/t/odom-drifting-far-away-when-using-slam-toolbox/1440 "2026-02-05T17:24:06Z")
I am using gazebo , rviz and slam\_toolbox for mapping. But the issue is that the obstacles seems to be moving with the robot and the mapping is incorrect and a big delay why? There is only 2 squared obstacles but the ma… --- ## [Stretch Web Interface continuous loading](https://forum.hello-robot.com/t/stretch-web-interface-continuous-loading/1443)
**Author:** [@keshavshankar](https://forum.hello-robot.com/u/keshavshankar)\ **Replies:** 1\ **Last updated:** [January 31, 2026, 12:09am UTC](https://forum.hello-robot.com/t/stretch-web-interface-continuous-loading/1443 "2026-01-31T00:09:48Z")
Recently, after updating my ROS workspace, I can no longer load the Stretch Web Teleop. The ROS workspace had no issues updating. Here is the log: Defaulting to user installation because normal site-packages is not writ… --- ## [Stretch3 RealSense D435I Camera Stopped Working](https://forum.hello-robot.com/t/stretch3-realsense-d435i-camera-stopped-working/1437)
**Author:** [@nabin](https://forum.hello-robot.com/u/nabin)\ **Replies:** 4\ **Last updated:** [January 29, 2026, 6:46pm UTC](https://forum.hello-robot.com/t/stretch3-realsense-d435i-camera-stopped-working/1437 "2026-01-29T18:46:42Z")
I get following error when running the camera nodes with: ros2 launch stretch\_core d435i\_basic.launch.py and ros2 launch stretch\_core d435i\_high\_resolution.launch.py \[realsense2\_camera\_node-1\] \[ERROR\] \[1768579442.038267… --- ## [Respeaker package broken on new Stretch 3](https://forum.hello-robot.com/t/respeaker-package-broken-on-new-stretch-3/1435)
**Author:** [@Zackory](https://forum.hello-robot.com/u/Zackory)\ **Replies:** 16\ **Last updated:** [January 28, 2026, 6:47pm UTC](https://forum.hello-robot.com/t/respeaker-package-broken-on-new-stretch-3/1435 "2026-01-28T18:47:15Z")
Below is the error encountered when running ‘ros2 launch respeaker\_ros2 respeaker.launch.py‘ on a brand new Stretch 3 that has all of the Ubuntu software updates installed. $ ros2 launch respeaker\_ros2 respeaker.launch.… --- ## [Realsense Head Camera not working](https://forum.hello-robot.com/t/realsense-head-camera-not-working/1425)
**Author:** [@MIovino](https://forum.hello-robot.com/u/MIovino)\ **Replies:** 6\ **Last updated:** [January 22, 2026, 1:26pm UTC](https://forum.hello-robot.com/t/realsense-head-camera-not-working/1425 "2026-01-22T13:26:30Z")
Hello, I am having issues with the head camera of the Stretch3. The issue is that the camera is not seen as a realsense camera: I get the error “The requested device with device name containing d435 is NOT found.” when … --- ## [Arm joint fall out using dexterous teleoperation](https://forum.hello-robot.com/t/arm-joint-fall-out-using-dexterous-teleoperation/1433)
**Author:** [@AR\_Zhang](https://forum.hello-robot.com/u/AR_Zhang)\ **Replies:** 2\ **Last updated:** [January 10, 2026, 1:13pm UTC](https://forum.hello-robot.com/t/arm-joint-fall-out-using-dexterous-teleoperation/1433 "2026-01-10T13:13:09Z")
Hi Hello Robot, I ran into a issue with arm joint when reaching for object far away using teleoperation, the arm was over stretched. As you can see in the picture, black plastic limit block of the first arm joint become… --- ## [Web teleop stuck on load page](https://forum.hello-robot.com/t/web-teleop-stuck-on-load-page/1430)
**Author:** [@Srishti\_Singh](https://forum.hello-robot.com/u/Srishti_Singh)\ **Replies:** 2\ **Last updated:** [December 18, 2025, 11:18pm UTC](https://forum.hello-robot.com/t/web-teleop-stuck-on-load-page/1430 "2025-12-18T23:18:18Z")
When I launch the web interface, the page does not seem to finish loading. I generated a log.txt file and added the beginning of it below for reference, and was wondering if I could get some help debugging this. Thank yo… --- ## [Stretch 3 deep perception image red color missing](https://forum.hello-robot.com/t/stretch-3-deep-perception-image-red-color-missing/1427)
**Author:** [@Kristo\_Kakkum](https://forum.hello-robot.com/u/Kristo_Kakkum)\ **Replies:** 1\ **Last updated:** [December 3, 2025, 11:43pm UTC](https://forum.hello-robot.com/t/stretch-3-deep-perception-image-red-color-missing/1427 "2025-12-03T23:43:08Z")
I am working on a project that uses stretch deep perception for object detection. I have made a custom yolov5t model for detecting boxes, plastic bottles and tennis ball. When i use the demo code, (both with my custom mo… --- ## [RPLidar not working perfectly](https://forum.hello-robot.com/t/rplidar-not-working-perfectly/1417)
**Author:** [@maa\_401](https://forum.hello-robot.com/u/maa_401)\ **Replies:** 4\ **Last updated:** [November 24, 2025, 5:29pm UTC](https://forum.hello-robot.com/t/rplidar-not-working-perfectly/1417 "2025-11-24T17:29:15Z")
Hi all, I am configuring a stretch-se3. The first time I was experimenting with it, it all worked fine and smoothly. But now when I was planning to set up a container on it, I added the config device /dev/hello-lrf to m… --- ## [Mujoco add\_world\_frame not persistent for multiple frames](https://forum.hello-robot.com/t/mujoco-add-world-frame-not-persistent-for-multiple-frames/1407)
**Author:** [@jehan](https://forum.hello-robot.com/u/jehan)\ **Replies:** 10\ **Last updated:** [November 17, 2025, 11:14pm UTC](https://forum.hello-robot.com/t/mujoco-add-world-frame-not-persistent-for-multiple-frames/1407 "2025-11-17T23:14:43Z")
Hi Hello Robot, I think I found an issue where I can only see one world frame at a time in the mujoco viewer. Is that supposed to be the case? Here is an example of what I am doing to try to add multiple coordinate fram… --- ## [Outdated transforms compared to RealSense](https://forum.hello-robot.com/t/outdated-transforms-compared-to-realsense/1415)
**Author:** [@snoato](https://forum.hello-robot.com/u/snoato)\ **Replies:** 3\ **Last updated:** [November 13, 2025, 9:32pm UTC](https://forum.hello-robot.com/t/outdated-transforms-compared-to-realsense/1415 "2025-11-13T21:32:34Z")
Hi everyone, we’re using object recognition on the D435 to determine the position of objects. Now to get coordinates relative to the base we are doing a lookup from the camera to the base\_link in the TF tree (ROS2). How… --- ## [Web\_teleop demo got stucked in loading page](https://forum.hello-robot.com/t/web-teleop-demo-got-stucked-in-loading-page/1403)
**Author:** [@HaroldMao](https://forum.hello-robot.com/u/HaroldMao)\ **Replies:** 2\ **Last updated:** [October 31, 2025, 7:40am UTC](https://forum.hello-robot.com/t/web-teleop-demo-got-stucked-in-loading-page/1403 "2025-10-31T07:40:24Z")
Hello, we followed instructions of Demo 2 - Web Teleop on Stretch 3. After launch\_interface.sh output is as expected, but neither localhost either remote operator in the same network are not launching the application, t… --- ## [Communicate with custom sensors in ISR](https://forum.hello-robot.com/t/communicate-with-custom-sensors-in-isr/1404)
**Author:** [@NewWheat](https://forum.hello-robot.com/u/NewWheat)\ **Replies:** 1\ **Last updated:** [October 22, 2025, 4:15pm UTC](https://forum.hello-robot.com/t/communicate-with-custom-sensors-in-isr/1404 "2025-10-22T16:15:33Z")
Hello, I am trying to integrate custom sensors (DHT11 and SGP30) to the robot’s wrist expansion header. Following the tutorial tutorial\_data\_transfer, I wrote a function to get values from the sensors which was called b… --- ## [Possibility of Moveit 2 Integration with Stretch 3 for arm motion](https://forum.hello-robot.com/t/possibility-of-moveit-2-integration-with-stretch-3-for-arm-motion/1401)
**Author:** [@noob-robotics](https://forum.hello-robot.com/u/noob-robotics)\ **Replies:** 1\ **Last updated:** [October 15, 2025, 5:13pm UTC](https://forum.hello-robot.com/t/possibility-of-moveit-2-integration-with-stretch-3-for-arm-motion/1401 "2025-10-15T17:13:30Z")
Hello, Since the base navigation can be handled using Nav2, which is already pre-configured by the Stretch team and ready to use, I would like to know if there is any specific reason why MoveIt2 (for arm motion only, as… --- ## [Failure updating ROS workspace (install FUNMAP depdency step)](https://forum.hello-robot.com/t/failure-updating-ros-workspace-install-funmap-depdency-step/1230)
**Author:** [@keshavshankar](https://forum.hello-robot.com/u/keshavshankar)\ **Replies:** 7\ **Last updated:** [October 3, 2025, 4:49pm UTC](https://forum.hello-robot.com/t/failure-updating-ros-workspace-install-funmap-depdency-step/1230 "2025-10-03T16:49:03Z")
I’m having an issue updating my ros2 workspace on stretch3 after pulling recent changes from the hellorobot stretch\_install repo. ########################################### CREATING HUMBLE AMENT WORKSPACE at /home/hell… --- ## [Pick & place mobile manipulation](https://forum.hello-robot.com/t/pick-place-mobile-manipulation/1399)
**Author:** [@Igri](https://forum.hello-robot.com/u/Igri)\ **Replies:** 2\ **Last updated:** [September 30, 2025, 12:40am UTC](https://forum.hello-robot.com/t/pick-place-mobile-manipulation/1399 "2025-09-30T00:40:12Z")
I am working on Stretch2 Robot and I am looking for a way to coordinate movement between the base and the arm of the robot. Essentially, I want the robot to be able to detect where an object is in a room, navigate toward… --- ## [Stretch Unable to find Realsense cameras](https://forum.hello-robot.com/t/stretch-unable-to-find-realsense-cameras/1397)
**Author:** [@allib](https://forum.hello-robot.com/u/allib)\ **Replies:** 1\ **Last updated:** [September 29, 2025, 5:42pm UTC](https://forum.hello-robot.com/t/stretch-unable-to-find-realsense-cameras/1397 "2025-09-29T17:42:38Z")
I tried running web teleop but couldn’t see the camera view, upon debugging I realized when running stretch\_camera\_streams\_check.py and stretch\_camera\_streams\_check.py --d40505 the system is unable to find the realsense … --- ## [Moonlight Wireless Connection Inconsistency](https://forum.hello-robot.com/t/moonlight-wireless-connection-inconsistency/1396)
**Author:** [@allib](https://forum.hello-robot.com/u/allib)\ **Replies:** 6\ **Last updated:** [September 19, 2025, 6:01pm UTC](https://forum.hello-robot.com/t/moonlight-wireless-connection-inconsistency/1396 "2025-09-19T18:01:03Z")
I have set up Moonlight on my Stretch 2, but when I boot it up and try to connect it to my computer it is very hit or miss whether it will appear as available to connect to on my computer. Even when I go in and re add th… --- ## [Arm retraction issue](https://forum.hello-robot.com/t/arm-retraction-issue/1393)
**Author:** [@seongwoncho](https://forum.hello-robot.com/u/seongwoncho)\ **Replies:** 3\ **Last updated:** [September 9, 2025, 8:40pm UTC](https://forum.hello-robot.com/t/arm-retraction-issue/1393 "2025-09-09T20:40:16Z")
Sometimes, after running robot code, the arm does not retract completely — it stops about 3–4 cm short of fully stowing. Even after running stretch\_robot\_home, the arm does not always go all the way in. This causes timeo… --- ## [IMU calibration after adding a power bank on Stretch SE3 base](https://forum.hello-robot.com/t/imu-calibration-after-adding-a-power-bank-on-stretch-se3-base/1394)
**Author:** [@seongwoncho](https://forum.hello-robot.com/u/seongwoncho)\ **Replies:** 5\ **Last updated:** [September 8, 2025, 8:40pm UTC](https://forum.hello-robot.com/t/imu-calibration-after-adding-a-power-bank-on-stretch-se3-base/1394 "2025-09-08T20:40:36Z")
Hello, I mounted a power bank on the base of my Stretch SE3 and noticed that the IMU readings are significantly disturbed, likely due to magnetic interference. For example, when I query the IMU with: import stretch\_bod… --- ## [Running stretch SE3 with ROS Noetic inside](https://forum.hello-robot.com/t/running-stretch-se3-with-ros-noetic-inside/1395)
**Author:** [@seongwoncho](https://forum.hello-robot.com/u/seongwoncho)\ **Replies:** 2\ **Last updated:** [September 6, 2025, 6:25am UTC](https://forum.hello-robot.com/t/running-stretch-se3-with-ros-noetic-inside/1395 "2025-09-06T06:25:20Z")
Hello, I’d like to run home-robot on my Stretch SE3. Since it requires ROS 1 Noetic, my plan is to use Docker (my host has ROS 2, I’d prefer not to dual-boot). Do I need to follow the same steps listed here inside the … --- ## [How to Install Stretch Core](https://forum.hello-robot.com/t/how-to-install-stretch-core/1391)
**Author:** [@tbmeier](https://forum.hello-robot.com/u/tbmeier)\ **Replies:** 2\ **Last updated:** [August 29, 2025, 12:35pm UTC](https://forum.hello-robot.com/t/how-to-install-stretch-core/1391 "2025-08-29T12:35:28Z")
I have a Stretch2, that I have done software updates to bring it to Stretch3 software (have not made the hardware upgrades although we received them today). I was trying to get the “grasp object” demo to work, when I enc… --- ## [Stretch Driver (ROS ) - Position Mode - "translate\_mobile\_base" and "rotate\_mobile\_base" commands](https://forum.hello-robot.com/t/stretch-driver-ros-position-mode-translate-mobile-base-and-rotate-mobile-base-commands/1390)
**Author:** [@noob-robotics](https://forum.hello-robot.com/u/noob-robotics)\ **Replies:** 2\ **Last updated:** [August 28, 2025, 8:10pm UTC](https://forum.hello-robot.com/t/stretch-driver-ros-position-mode-translate-mobile-base-and-rotate-mobile-base-commands/1390 "2025-08-28T20:10:01Z")
Hello, I am working with the SE3 robot and currently using it mainly through ROS. I have tried moving the base in the “navigation mode” of the drivers with Nav2 (by commanding velocity), and it is working fine. Accordi… --- ## [How to extend battery runtime?](https://forum.hello-robot.com/t/how-to-extend-battery-runtime/1387)
**Author:** [@seongwoncho](https://forum.hello-robot.com/u/seongwoncho)\ **Replies:** 2\ **Last updated:** [August 27, 2025, 5:23am UTC](https://forum.hello-robot.com/t/how-to-extend-battery-runtime/1387 "2025-08-27T05:23:14Z")
Hello everyone, I’m exploring ways to extend the battery runtime of my Stretch robot. I was wondering if it is feasible to mount an external 12 V LiFePO₄ battery pack on top of the robot and feed power through the char… --- ## [ArUco Marker detection in stretch\_web\_teleop](https://forum.hello-robot.com/t/aruco-marker-detection-in-stretch-web-teleop/1384)
**Author:** [@sahitha](https://forum.hello-robot.com/u/sahitha)\ **Replies:** 1\ **Last updated:** [August 14, 2025, 2:20am UTC](https://forum.hello-robot.com/t/aruco-marker-detection-in-stretch-web-teleop/1384 "2025-08-14T02:20:11Z")
Hello! We’re having trouble getting Stretch to detect ArUco markers through the web teleop interface. When we run the detection commands manually, the robot successfully identifies the markers. However, when we add the d… [Previous page](https://forum.hello-robot.com/c/ask/5.md) [Next page](https://forum.hello-robot.com/c/ask/5.md?page=2)