# AVR Drone Software

**URL:** https://forum.theavr.org/c/technical-support/avr-drone-software/10.md

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## [About the AVR Drone Software category](https://forum.theavr.org/t/about-the-avr-drone-software-category/25)

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**Author:** [@jay\_allbritton](https://forum.theavr.org/u/jay_allbritton)\
**Replies:** 0

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Software and Coding.

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## [AVR Compute Kit servos](https://forum.theavr.org/t/avr-compute-kit-servos/1063)

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**Author:** [@Popp](https://forum.theavr.org/u/Popp)\
**Replies:** 4\
**Last updated:** [October 18, 2025, 4:04pm UTC](https://forum.theavr.org/t/avr-compute-kit-servos/1063 "2025-10-18T16:04:20Z")

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Hi, where can I find the code to help work out with the servos or is this something that I find out how to do ourselves as part of the competition?

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## [Need of Spare Jetson Nano - Original kit not responding](https://forum.theavr.org/t/need-of-spare-jetson-nano-original-kit-not-responding/1024)

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**Author:** [@salwxk](https://forum.theavr.org/u/salwxk)\
**Replies:** 3\
**Last updated:** [December 6, 2024, 3:36am UTC](https://forum.theavr.org/t/need-of-spare-jetson-nano-original-kit-not-responding/1024 "2024-12-06T03:36:12Z")

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After experiencing a crash a few weeks ago, our Jetson stopped working. We used some spare Jetson kit from our lab and replaced the entire Jetson (including a clean SD card) but it still didn’t work. The lights were on a…

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## [Dexi Ir recover to flash LED](https://forum.theavr.org/t/dexi-ir-recover-to-flash-led/981)

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**Author:** [@CJ\_bruce](https://forum.theavr.org/u/CJ_bruce)\
**Replies:** 4\
**Last updated:** [November 4, 2024, 11:28pm UTC](https://forum.theavr.org/t/dexi-ir-recover-to-flash-led/981 "2024-11-04T23:28:24Z")

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Hello We have coded the ir receiver to know when it is a damage site. We have tried to figure out how to get the data from the IR receiver to flash the LED 3 times. Thank you

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## [AVR GUI with White LED Button](https://forum.theavr.org/t/avr-gui-with-white-led-button/998)

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**Author:** [@droneblocks](https://forum.theavr.org/u/droneblocks)\
**Replies:** 0\
**Last updated:** [November 2, 2024, 4:17pm UTC](https://forum.theavr.org/t/avr-gui-with-white-led-button/998 "2024-11-02T16:17:53Z")

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It was brought to our attention from @Fiona\_McDonald and others that there is not an option to trigger a white LED for the AVR drone. The original developer of the AVR GUI is no longer involved with the competition so I …

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## [Coding in Sandbox Module](https://forum.theavr.org/t/coding-in-sandbox-module/974)

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**Author:** [@CoastJRA](https://forum.theavr.org/u/CoastJRA)\
**Replies:** 7\
**Last updated:** [October 28, 2024, 5:49am UTC](https://forum.theavr.org/t/coding-in-sandbox-module/974 "2024-10-28T05:49:36Z")

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We have been trying to get the RGB lights to flash using the sandbox module autonomously. We have been trying to get the code right for many weeks and haven’t succeeded. Please help. We get this error most of the time “T…

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## [Trouble Connecting to QGC and GUI](https://forum.theavr.org/t/trouble-connecting-to-qgc-and-gui/954)

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**Author:** [@Fiona\_McDonald](https://forum.theavr.org/u/Fiona_McDonald)\
**Replies:** 8\
**Last updated:** [October 26, 2024, 6:46pm UTC](https://forum.theavr.org/t/trouble-connecting-to-qgc-and-gui/954 "2024-10-26T18:46:22Z")

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Our team is having the same problem as stated in this forum entry: Cant connect to Qground nor AVR GUI and the user who posted it clarified it was fixed but never stated how to fix it. We’re getting the same error on QG…

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## [QGroundControl not connecting](https://forum.theavr.org/t/qgroundcontrol-not-connecting/961)

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**Author:** [@CoastJRA](https://forum.theavr.org/u/CoastJRA)\
**Replies:** 1\
**Last updated:** [October 24, 2024, 8:33pm UTC](https://forum.theavr.org/t/qgroundcontrol-not-connecting/961 "2024-10-24T20:33:00Z")

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Recently, whenever we try to connect the AVR Drone to QGroundControl it doesn’t connect. The computer is connected to the drone’s wifi and everything else besides QGC is working correct. Also, we recently changed our Pix…

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## [Connection Issue between transmitter and Pixhawk](https://forum.theavr.org/t/connection-issue-between-transmitter-and-pixhawk/251)

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**Author:** [@nshs](https://forum.theavr.org/u/nshs)\
**Replies:** 1\
**Last updated:** [October 19, 2022, 3:40pm UTC](https://forum.theavr.org/t/connection-issue-between-transmitter-and-pixhawk/251 "2022-10-19T15:40:45Z")

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We are having the issue in Q ground control with it not recognizing the transmitter whenever we go to calibrate in the radio section. It says to turn it on, but the issue is it already is on and it says that it is connec…

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## [AVR Drone Software Setup for 2024 Competition](https://forum.theavr.org/t/avr-drone-software-setup-for-2024-competition/968)

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**Author:** [@droneblocks](https://forum.theavr.org/u/droneblocks)\
**Replies:** 0\
**Last updated:** [October 22, 2024, 10:59pm UTC](https://forum.theavr.org/t/avr-drone-software-setup-for-2024-competition/968 "2024-10-22T22:59:21Z")

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I’ve seen several teams struggling to get their AVR drone software setup and running properly. That led to the creation of this howto video. I hope it helps some of you out and please let us know if anything is unclear: …

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## [Dexi Node Red container error](https://forum.theavr.org/t/dexi-node-red-container-error/960)

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**Author:** [@CJ\_bruce](https://forum.theavr.org/u/CJ_bruce)\
**Replies:** 4\
**Last updated:** [October 21, 2024, 1:15am UTC](https://forum.theavr.org/t/dexi-node-red-container-error/960 "2024-10-21T01:15:25Z")

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When ever we try to connect to node red on visual studios it gives us this error. Thank you Error response from daemon: Conflict. The container name “/dexi-node-red” is already in use by container “0139bb9efff063e538a9…

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## [Login to Putty Saying Password Incorrect](https://forum.theavr.org/t/login-to-putty-saying-password-incorrect/943)

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**Author:** [@Fiona\_McDonald](https://forum.theavr.org/u/Fiona_McDonald)\
**Replies:** 2\
**Last updated:** [October 18, 2024, 6:01pm UTC](https://forum.theavr.org/t/login-to-putty-saying-password-incorrect/943 "2024-10-18T18:01:40Z")

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Our team is attempting to login to our Jetson through Putty, but every time it is saying the login is incorrect even though we’re using the default login (avr and bellavr22). Sometimes, if we seem to time it just right, …

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## [Dexi Website 192.168.4.1 not working](https://forum.theavr.org/t/dexi-website-192-168-4-1-not-working/936)

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**Author:** [@CJ\_bruce](https://forum.theavr.org/u/CJ_bruce)\
**Replies:** 6\
**Last updated:** [October 18, 2024, 12:23am UTC](https://forum.theavr.org/t/dexi-website-192-168-4-1-not-working/936 "2024-10-18T00:23:24Z")

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In the Dexi wiring video Denis went to the website 192.168.4.1 while connected to a Dexi Wifi and takes him to a website about the dexi scmatics.When we tried to do do the same thing it says either check your wifi or it …

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## [Connecting to the Jetson Issue](https://forum.theavr.org/t/connecting-to-the-jetson-issue/714)

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**Author:** [@nshs](https://forum.theavr.org/u/nshs)\
**Replies:** 2\
**Last updated:** [October 10, 2024, 5:29pm UTC](https://forum.theavr.org/t/connecting-to-the-jetson-issue/714 "2024-10-10T17:29:01Z")

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We are on the step where we are connecting to the Jetson for the first time. We are using serial, but the jetson is not showing on the COM and Ports. The light is on, jumper is also taken off, but the computer is not re…

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## [Installing Bell AVR Libraries](https://forum.theavr.org/t/installing-bell-avr-libraries/932)

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**Author:** [@CoastJRA](https://forum.theavr.org/u/CoastJRA)\
**Replies:** 1\
**Last updated:** [October 3, 2024, 6:11pm UTC](https://forum.theavr.org/t/installing-bell-avr-libraries/932 "2024-10-03T18:11:48Z")

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When trying to run the sandbox.py file in VS Code, we get this error: Traceback (most recent call last): File “/home/avr/AVR-2022/VMC/sandbox/sandbox.py”, line 5, in from bell.avr.mqtt.client import MQTTModule Modul…

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## [WiFi on Dexi Drone Not Showing up](https://forum.theavr.org/t/wifi-on-dexi-drone-not-showing-up/909)

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**Author:** [@nhopkins](https://forum.theavr.org/u/nhopkins)\
**Replies:** 8\
**Last updated:** [September 27, 2024, 6:31pm UTC](https://forum.theavr.org/t/wifi-on-dexi-drone-not-showing-up/909 "2024-09-27T18:31:48Z")

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We have assembled our Dexi and are trying to connect it to QGroundControl, but the WiFI network is not showing up. Does anyone have any solutions?

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## [Remote Development with VS Code](https://forum.theavr.org/t/remote-development-with-vs-code/906)

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**Author:** [@CoastJRA](https://forum.theavr.org/u/CoastJRA)\
**Replies:** 2\
**Last updated:** [September 25, 2024, 11:03pm UTC](https://forum.theavr.org/t/remote-development-with-vs-code/906 "2024-09-25T23:03:08Z")

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We have followed the instructions in the Autonomy and Beyond section for remote development of the jetson with vs code. In VS Code when trying to connect to SSH host we get the prompt to choose linux, windows, or macOS (…

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## [Fix invalid platform when building PCC firmware](https://forum.theavr.org/t/fix-invalid-platform-when-building-pcc-firmware/905)

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**Author:** [@Jurassic\_001](https://forum.theavr.org/u/Jurassic_001)\
**Replies:** 0\
**Last updated:** [September 20, 2024, 6:46pm UTC](https://forum.theavr.org/t/fix-invalid-platform-when-building-pcc-firmware/905 "2024-09-20T18:46:47Z")

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This post is a duplicate of an issue I opened on AVR-2022. My issue post didn’t seem to be getting any traction over there, so I figured I’d repost it over here I was messing around with building PCC firmware and I not…

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## [AVR Folder clarifications](https://forum.theavr.org/t/avr-folder-clarifications/887)

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**Author:** [@Popp](https://forum.theavr.org/u/Popp)\
**Replies:** 2\
**Last updated:** [September 6, 2024, 3:39am UTC](https://forum.theavr.org/t/avr-folder-clarifications/887 "2024-09-06T03:39:29Z")

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Hi, we were wondering if there was any sort of summary of what every folder is in the AVR software

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## [Bonding the Dexi controller](https://forum.theavr.org/t/bonding-the-dexi-controller/889)

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**Author:** [@CoastJRA](https://forum.theavr.org/u/CoastJRA)\
**Replies:** 1\
**Last updated:** [September 6, 2024, 3:16am UTC](https://forum.theavr.org/t/bonding-the-dexi-controller/889 "2024-09-06T03:16:07Z")

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Hey everyone. We were following the Dexi setup videos, and once we click the system button on the controller, then Express LRS we get stuck on an infinite loading screen and we never get the screen to select “bond”. We l…

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## [AVR-VMC vs AVR-2022](https://forum.theavr.org/t/avr-vmc-vs-avr-2022/883)

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**Author:** [@null\_ham](https://forum.theavr.org/u/null_ham)\
**Replies:** 1\
**Last updated:** [August 29, 2024, 7:25pm UTC](https://forum.theavr.org/t/avr-vmc-vs-avr-2022/883 "2024-08-29T19:25:06Z")

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Hey there, I’m currently working on our AVR drone for the 2024 season, and I noticed there are two different repositories relating to the VMC on The AVR GitHub: AVR-VMC and AVR-2022. We currently have the AVR-2022 reposi…

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## [PCC servo count to 8](https://forum.theavr.org/t/pcc-servo-count-to-8/857)

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**Author:** [@Popp](https://forum.theavr.org/u/Popp)\
**Replies:** 1\
**Last updated:** [August 19, 2024, 7:41pm UTC](https://forum.theavr.org/t/pcc-servo-count-to-8/857 "2024-08-19T19:41:48Z")

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Hello our team was wondering how to make use of all 8 of the servo ports, could anyone help us figure this out? Thank you

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## [Jetson login error during gitpull](https://forum.theavr.org/t/jetson-login-error-during-gitpull/855)

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**Author:** [@Popp](https://forum.theavr.org/u/Popp)\
**Replies:** 7\
**Last updated:** [July 3, 2024, 5:14pm UTC](https://forum.theavr.org/t/jetson-login-error-during-gitpull/855 "2024-07-03T17:14:43Z")

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Hello, I’ve been having trouble setting up the jetson on our AVR drone due to an error when I update the software. I get to where it starts writing the AVR software then it says error from Daemon and to log in

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## [0x69 error in GUI](https://forum.theavr.org/t/0x69-error-in-gui/839)

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**Author:** [@aceleski](https://forum.theavr.org/u/aceleski)\
**Replies:** 4\
**Last updated:** [March 17, 2024, 6:36pm UTC](https://forum.theavr.org/t/0x69-error-in-gui/839 "2024-03-17T18:36:29Z")

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Every time we fire up the GUI it gives us the error "ValueError No I2C Device at address: 0x69. How do we resolve this?

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## [Unknown Error a00f34121c9b\_avr2022\_pcm\_1](https://forum.theavr.org/t/unknown-error-a00f34121c9b-avr2022-pcm-1/836)

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**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")

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When starting the drone we find the error message “a00f34121c9b\_avr2022\_pcm\_1”. Can anybody help with this error message? Thank you!

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## [Building new firmware for the PCC](https://forum.theavr.org/t/building-new-firmware-for-the-pcc/817)

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**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")

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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…

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## [Code Help - Run Nonblocking](https://forum.theavr.org/t/code-help-run-nonblocking/802)

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**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")

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I’ve seen multiple people use something like box.run\_non\_blocking() in their code. What does this code do?

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## [Strange issue with AVR Jetson code](https://forum.theavr.org/t/strange-issue-with-avr-jetson-code/801)

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**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")

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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…

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## [CSI Camera Detected, Not Sending View](https://forum.theavr.org/t/csi-camera-detected-not-sending-view/775)

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**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")

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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…

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## [Manual flight speed](https://forum.theavr.org/t/manual-flight-speed/774)

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**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")

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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 …

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