# Latest **URL:** https://forum.theavr.org/latest.md?page=4 [Latest](https://forum.theavr.org/latest.md) · [Categories](https://forum.theavr.org/categories.md) · [Tags](https://forum.theavr.org/tags.md) **Page:** 5 --- ## [QGroundControl not connecting to the drone](https://forum.theavr.org/t/qgroundcontrol-not-connecting-to-the-drone/838)
**Author:** [@aceleski](https://forum.theavr.org/u/aceleski)\ **Replies:** 1\ **Last updated:** [March 13, 2024, 8:53am UTC](https://forum.theavr.org/t/qgroundcontrol-not-connecting-to-the-drone/838 "2024-03-13T08:53:25Z")
We have been trying to connect but it has not been successful. After clicking on the “Q” and connecting in the Comm Links section it says we are connected. But, once we go back to the main screen with the map we are disc… --- ## [Unknown Error a00f34121c9b\_avr2022\_pcm\_1](https://forum.theavr.org/t/unknown-error-a00f34121c9b-avr2022-pcm-1/836)
**Author:** [@aceleski](https://forum.theavr.org/u/aceleski)\ **Replies:** 1\ **Last updated:** [March 8, 2024, 3:21am UTC](https://forum.theavr.org/t/unknown-error-a00f34121c9b-avr2022-pcm-1/836 "2024-03-08T03:21:43Z")
When starting the drone we find the error message “a00f34121c9b\_avr2022\_pcm\_1”. Can anybody help with this error message? Thank you! --- ## [Where'd the docs go :(](https://forum.theavr.org/t/whered-the-docs-go/834)
**Author:** [@Jonah](https://forum.theavr.org/u/Jonah)\ **Replies:** 4\ **Last updated:** [March 4, 2024, 4:11pm UTC](https://forum.theavr.org/t/whered-the-docs-go/834 "2024-03-04T16:11:09Z")
I know this is probably just a side effect of the competition changing hands, but the drone documentation has mysteriously vanishedd. If, hypothetically, I accidentally wiped my VMC and needed to redownload the firmware… --- ## [Building new firmware for the PCC](https://forum.theavr.org/t/building-new-firmware-for-the-pcc/817)
**Author:** [@HPT1-Row\_Dyer](https://forum.theavr.org/u/HPT1-Row_Dyer)\ **Replies:** 3\ **Last updated:** [November 30, 2023, 4:37pm UTC](https://forum.theavr.org/t/building-new-firmware-for-the-pcc/817 "2023-11-30T16:37:04Z")
Hi there, our team made some changes to the PCC firmware (to support an additional servofeatherwing), and we wanted to rebuild the pcc firmware and upload it. Unfortunately, we have been running into issues, and have be… --- ## [Switching to mode 'Position Control' is currently not possible](https://forum.theavr.org/t/switching-to-mode-position-control-is-currently-not-possible/745)
**Author:** [@asher](https://forum.theavr.org/u/asher)\ **Replies:** 3\ **Last updated:** [November 30, 2023, 4:04pm UTC](https://forum.theavr.org/t/switching-to-mode-position-control-is-currently-not-possible/745 "2023-11-30T16:04:15Z")
Our team is having issues with switching to position flight mode. Whenever we attempt to switch, QCG gives the error “Switching to mode ‘Position control’ is currently not possible, check for a valid position estimate.” … --- ## [Tello Phase 1 Actions](https://forum.theavr.org/t/tello-phase-1-actions/798)
**Author:** [@Shivam](https://forum.theavr.org/u/Shivam)\ **Replies:** 2\ **Last updated:** [November 30, 2023, 3:11am UTC](https://forum.theavr.org/t/tello-phase-1-actions/798 "2023-11-30T03:11:03Z")
Hello, If we send out the Tello on its recon path, and it doesn’t finish the path in the 30 seconds but it DOES drop the smokejumper, would we get the smokejumper auton points and just no recon path points, or would we … --- ## [FC Not Giving Position Data](https://forum.theavr.org/t/fc-not-giving-position-data/808)
**Author:** [@asher](https://forum.theavr.org/u/asher)\ **Replies:** 2\ **Last updated:** [November 29, 2023, 1:22am UTC](https://forum.theavr.org/t/fc-not-giving-position-data/808 "2023-11-29T01:22:32Z")
Hi, I believe that our FC is not giving us any data about our position, globally or locally. When we open AVRGUI and connect, no data is displayed about global or local position, but data about the attitudes is displaye… --- ## [Can We use PiCameraV2 Instead of CSI Camera because CSI Doesn't work](https://forum.theavr.org/t/can-we-use-picamerav2-instead-of-csi-camera-because-csi-doesnt-work/809)
**Author:** [@aryal](https://forum.theavr.org/u/aryal)\ **Replies:** 3\ **Last updated:** [November 28, 2023, 11:13pm UTC](https://forum.theavr.org/t/can-we-use-picamerav2-instead-of-csi-camera-because-csi-doesnt-work/809 "2023-11-28T23:13:36Z")
Unfortunately, we’ve had some recent issues reading any data on our CSI camera. We tested multiple replacements and ran into the same issues on the Jetson. We are unsure whether it is a software or hardware issue (and we… --- ## [Water Ball Specification](https://forum.theavr.org/t/water-ball-specification/812)
**Author:** [@Teloman](https://forum.theavr.org/u/Teloman)\ **Replies:** 1\ **Last updated:** [November 28, 2023, 9:31pm UTC](https://forum.theavr.org/t/water-ball-specification/812 "2023-11-28T21:31:46Z")
Practicing pickup up water balls. We purchased 1000 white 25 mm balls. Found out they are one half the weight of the balls received with our registration kit. Does anyone know the part number of the balls and where to… --- ## [Code Help - Run Nonblocking](https://forum.theavr.org/t/code-help-run-nonblocking/802)
**Author:** [@GioOC8](https://forum.theavr.org/u/GioOC8)\ **Replies:** 1\ **Last updated:** [November 28, 2023, 7:14pm UTC](https://forum.theavr.org/t/code-help-run-nonblocking/802 "2023-11-28T19:14:06Z")
I’ve seen multiple people use something like box.run\_non\_blocking() in their code. What does this code do? --- ## [CSI camera not reading](https://forum.theavr.org/t/csi-camera-not-reading/806)
**Author:** [@Jack\_Ewing](https://forum.theavr.org/u/Jack_Ewing)\ **Replies:** 1\ **Last updated:** [November 28, 2023, 2:08am UTC](https://forum.theavr.org/t/csi-camera-not-reading/806 "2023-11-28T02:08:55Z")
The jetson is not reading the CSI camera. what is weird is that when running ls /dev/video0 I get a positive result, however when running start.py run apriltag I get one of two error messages, as far as I can tell they a… --- ## [What are the scoring requirements for AprilTag Water Drops](https://forum.theavr.org/t/what-are-the-scoring-requirements-for-apriltag-water-drops/791)
**Author:** [@HPT1-Row\_Dyer](https://forum.theavr.org/u/HPT1-Row_Dyer)\ **Replies:** 3\ **Last updated:** [November 27, 2023, 10:43pm UTC](https://forum.theavr.org/t/what-are-the-scoring-requirements-for-apriltag-water-drops/791 "2023-11-27T22:43:22Z")
Hi there, we wanted to see what the requirements for getting the autonomous points for the water drop. Do we need to release the balls from the april tag, or does the drone need to hold postition due to it. Much appreci… --- ## [Wireless connections with the RVR](https://forum.theavr.org/t/wireless-connections-with-the-rvr/789)
**Author:** [@QuentinT](https://forum.theavr.org/u/QuentinT)\ **Replies:** 1\ **Last updated:** [November 27, 2023, 6:31pm UTC](https://forum.theavr.org/t/wireless-connections-with-the-rvr/789 "2023-11-27T18:31:18Z")
During our first competition we saw one or two teams use wireless connections other then the sphero app on the RVR. Rule 8.2.4 says “Teams & vehicles may only use the following forms of wireless communication:” and on C.… --- ## ["Grabbing" Onto Walls](https://forum.theavr.org/t/grabbing-onto-walls/784)
**Author:** [@Shivam](https://forum.theavr.org/u/Shivam)\ **Replies:** 3\ **Last updated:** [November 27, 2023, 6:25pm UTC](https://forum.theavr.org/t/grabbing-onto-walls/784 "2023-11-27T18:25:25Z")
Hello, Are we allowed to have a small 3d printed part that will hook onto a side wall of the course? It will have low force and isn’t intended to cause damage, more to keep something in place. If you would like more cla… --- ## [AVR dropping spheros off](https://forum.theavr.org/t/avr-dropping-spheros-off/788)
**Author:** [@ella\_j](https://forum.theavr.org/u/ella_j)\ **Replies:** 1\ **Last updated:** [November 27, 2023, 6:05pm UTC](https://forum.theavr.org/t/avr-dropping-spheros-off/788 "2023-11-27T18:05:55Z")
Hello, We wanted to know if we could get points for dropping the Spheros off onto the residential buildings without landing on the buildings? The game manual states that the “AVR Drone landing on the Residential Building… --- ## [Strange issue with AVR Jetson code](https://forum.theavr.org/t/strange-issue-with-avr-jetson-code/801)
**Author:** [@HPT1-Row\_Dyer](https://forum.theavr.org/u/HPT1-Row_Dyer)\ **Replies:** 0\ **Last updated:** [November 27, 2023, 3:39am UTC](https://forum.theavr.org/t/strange-issue-with-avr-jetson-code/801 "2023-11-27T03:39:08Z")
Hi there, recently while testing our sandbox code for the jetson, we ran into a strange issue. After building sandbox like normal, we used the run all command, but instead of running the modules like it normally does, i… --- ## [AprilTag Size this year?](https://forum.theavr.org/t/apriltag-size-this-year/799)
**Author:** [@aryal](https://forum.theavr.org/u/aryal)\ **Replies:** 0\ **Last updated:** [November 26, 2023, 4:33pm UTC](https://forum.theavr.org/t/apriltag-size-this-year/799 "2023-11-26T16:33:33Z")
How big are the AprilTag fiducials this year? Thanks, Arya --- ## [Ways to increase servo count above 8](https://forum.theavr.org/t/ways-to-increase-servo-count-above-8/790)
**Author:** [@HPT1-Row\_Dyer](https://forum.theavr.org/u/HPT1-Row_Dyer)\ **Replies:** 2\ **Last updated:** [November 24, 2023, 12:46am UTC](https://forum.theavr.org/t/ways-to-increase-servo-count-above-8/790 "2023-11-24T00:46:55Z")
Hi there, we wanted to see if there were any ideas for ways to increase the number of servos to greater than 8. Much appreciated, HPBT-1 --- ## [Game Manual Version 5.0 - 11/14/23 Update](https://forum.theavr.org/t/game-manual-version-5-0-11-14-23-update/764)
**Author:** [@Jeremiah\_M](https://forum.theavr.org/u/Jeremiah_M)\ **Replies:** 2\ **Last updated:** [November 22, 2023, 3:35pm UTC](https://forum.theavr.org/t/game-manual-version-5-0-11-14-23-update/764 "2023-11-22T15:35:39Z")
Updates have been made to multiple areas of the Game Manual. Please take note of the Version 5.0 – November 14, 2023 and relate back to the notes below: Updated \<5.2.4\> to clarify the required device for Water Hose Las… --- ## [CSI Camera Detected, Not Sending View](https://forum.theavr.org/t/csi-camera-detected-not-sending-view/775)
**Author:** [@Jonah](https://forum.theavr.org/u/Jonah)\ **Replies:** 2\ **Last updated:** [November 20, 2023, 3:34am UTC](https://forum.theavr.org/t/csi-camera-detected-not-sending-view/775 "2023-11-20T03:34:50Z")
I finally got the CSI camera detected by AVRGUI, and it’s sending fps messages, but not the all important “avr/apriltag/visible”. We printed out a few different april tag samples, but it just won’t register them. Any… --- ## [Manual flight speed](https://forum.theavr.org/t/manual-flight-speed/774)
**Author:** [@Jonah](https://forum.theavr.org/u/Jonah)\ **Replies:** 1\ **Last updated:** [November 18, 2023, 5:44pm UTC](https://forum.theavr.org/t/manual-flight-speed/774 "2023-11-18T17:44:32Z")
I saw the recent addition to the build manual showing the parameter for limiting autonomous flight speed. Is there a similar parameter for manual flight? It’s hard to control the AVR drone with how touchy the controls … --- ## [FCM Upload Mission Documentation](https://forum.theavr.org/t/fcm-upload-mission-documentation/778)
**Author:** [@GioOC8](https://forum.theavr.org/u/GioOC8)\ **Replies:** 0\ **Last updated:** [November 18, 2023, 4:41pm UTC](https://forum.theavr.org/t/fcm-upload-mission-documentation/778 "2023-11-18T16:41:25Z")
In the FCM documentation on Github, there is a part for uploading a mission to the drone. Could you explain how to use the takeoff/land (within the upload mission payload) and using ned instead of lat/long? --- ## [AVR Recon Path Timing](https://forum.theavr.org/t/avr-recon-path-timing/776)
**Author:** [@GioOC8](https://forum.theavr.org/u/GioOC8)\ **Replies:** 0\ **Last updated:** [November 18, 2023, 1:38pm UTC](https://forum.theavr.org/t/avr-recon-path-timing/776 "2023-11-18T13:38:20Z")
Hello, I am having trouble with the timing on the AVR drone, which is especially important for autonomous operations. My code for a test recon path is here: AVR Test Recon Path - Pastebin.com The FCM says something arou… --- ## [CSI Camera Ribbon Interference](https://forum.theavr.org/t/csi-camera-ribbon-interference/777)
**Author:** [@GioOC8](https://forum.theavr.org/u/GioOC8)\ **Replies:** 0\ **Last updated:** [November 18, 2023, 4:04pm UTC](https://forum.theavr.org/t/csi-camera-ribbon-interference/777 "2023-11-18T16:04:33Z")
Hi! We were testing putting the CSI camera in different spots on the drone, and sometimes it gives us an error that says “Failed to create CaptureSession”. This mostly happens whenever the ribbon is running on top of the… --- ## [Connecting to Jetson using putty](https://forum.theavr.org/t/connecting-to-jetson-using-putty/771)
**Author:** [@MDRobinson](https://forum.theavr.org/u/MDRobinson)\ **Replies:** 1\ **Last updated:** [November 17, 2023, 3:43pm UTC](https://forum.theavr.org/t/connecting-to-jetson-using-putty/771 "2023-11-17T15:43:31Z")
Source: Bell AVR Documentation My team forgot their password to jetson. Now we cannot connect using putty. Is there a work around? --- ## [Updating VMC Software](https://forum.theavr.org/t/updating-vmc-software/770)
**Author:** [@nhopkins](https://forum.theavr.org/u/nhopkins)\ **Replies:** 4\ **Last updated:** [November 17, 2023, 1:50pm UTC](https://forum.theavr.org/t/updating-vmc-software/770 "2023-11-17T13:50:30Z")
I am on the step where I update the VMC software. Every time I try to type a command on terminal, it says “command not found”. I have tried on both MacOS and Windows, having the same issue. What are some possible fixes f… --- ## [Tello Prop Guard Requirement](https://forum.theavr.org/t/tello-prop-guard-requirement/725)
**Author:** [@Sadek](https://forum.theavr.org/u/Sadek)\ **Replies:** 2\ **Last updated:** [November 17, 2023, 12:16am UTC](https://forum.theavr.org/t/tello-prop-guard-requirement/725 "2023-11-17T00:16:44Z")
Rule 8.1.2 states that AVR Drones must pass a “wall test” to ensure effective propeller guard coverage. Although it’s not explicitly stated, does the Tello drone also need to use the included propeller guards and pass su… --- ## [Changing Tello Motors](https://forum.theavr.org/t/changing-tello-motors/755)
**Author:** [@Shivam](https://forum.theavr.org/u/Shivam)\ **Replies:** 1\ **Last updated:** [November 17, 2023, 12:16am UTC](https://forum.theavr.org/t/changing-tello-motors/755 "2023-11-17T00:16:16Z")
Hello, Are we allowed to change the motors present in the tello to other ones, given that they are of similar size. May we also change the props on the tello if they do not exceed the size of the prop guards? --- ## [AVR Autonomous Code Flight Path Not Working](https://forum.theavr.org/t/avr-autonomous-code-flight-path-not-working/759)
**Author:** [@geox25](https://forum.theavr.org/u/geox25)\ **Replies:** 5\ **Last updated:** [November 16, 2023, 6:15pm UTC](https://forum.theavr.org/t/avr-autonomous-code-flight-path-not-working/759 "2023-11-16T18:15:09Z")
The sandbox connects to the MQTT broker just fine, and is able to log and run some setup code. It also is able to detect autonomous enable/disable just fine, but does not execute the flight path. Here is my code: de… --- ## [NED Inaccuracy - Weird Readings](https://forum.theavr.org/t/ned-inaccuracy-weird-readings/769)
**Author:** [@GioOC8](https://forum.theavr.org/u/GioOC8)\ **Replies:** 0\ **Last updated:** [November 16, 2023, 3:13pm UTC](https://forum.theavr.org/t/ned-inaccuracy-weird-readings/769 "2023-11-16T15:13:32Z")
When we check the MQTT debugger under avr/fusion/position/ned, it’s giving us crazy readings, and never reads (0, 0, 0) when we reset the home position. It thinks it’s 100 meters in the air, and that distance increases b… [Previous page](https://forum.theavr.org/latest.md?page=3) [Next page](https://forum.theavr.org/latest.md?page=5)