# AVR Drone Hardware **URL:** https://forum.theavr.org/c/technical-support/avr-drone-hardware/9.md [Latest](https://forum.theavr.org/latest.md) · [Categories](https://forum.theavr.org/categories.md) · [Tags](https://forum.theavr.org/tags.md) --- ## [About the AVR Drone Hardware category](https://forum.theavr.org/t/about-the-avr-drone-hardware-category/24)
**Author:** [@jay\_allbritton](https://forum.theavr.org/u/jay_allbritton)\ **Replies:** 0
Hardware and Assembly. --- ## [Replacement batteries available at the competition?](https://forum.theavr.org/t/replacement-batteries-available-at-the-competition/1074)
**Author:** [@emoons](https://forum.theavr.org/u/emoons)\ **Replies:** 1\ **Last updated:** [November 7, 2025, 7:28am UTC](https://forum.theavr.org/t/replacement-batteries-available-at-the-competition/1074 "2025-11-07T07:28:07Z")
I have a battery that won’t charge. One of the cells is at 1.3 V while the others are around 3.2 V. Would I be able to swap out the battery at the competition at St. Michaels in Austin? --- ## [Dexi battery straps](https://forum.theavr.org/t/dexi-battery-straps/1045)
**Author:** [@Dave](https://forum.theavr.org/u/Dave)\ **Replies:** 1\ **Last updated:** [September 11, 2025, 1:43pm UTC](https://forum.theavr.org/t/dexi-battery-straps/1045 "2025-09-11T13:43:15Z")
Our dexi battery straps broke. Is there a link for replacements? --- ## [Sensor Hardware](https://forum.theavr.org/t/sensor-hardware/1011)
**Author:** [@JadenPetty](https://forum.theavr.org/u/JadenPetty)\ **Replies:** 1\ **Last updated:** [November 11, 2024, 10:21pm UTC](https://forum.theavr.org/t/sensor-hardware/1011 "2024-11-11T22:21:35Z")
Hey so we are trying to find what sensors are used in the bridge to sense he laser what is the make and model of the laser sensor not the actual laser. I also want to know what infrared emitter there is and is it a 540 … --- ## [Motors Not Spinning](https://forum.theavr.org/t/motors-not-spinning/955)
**Author:** [@nhopkins](https://forum.theavr.org/u/nhopkins)\ **Replies:** 4\ **Last updated:** [October 25, 2024, 1:52pm UTC](https://forum.theavr.org/t/motors-not-spinning/955 "2024-10-25T13:52:17Z")
We are using our drone from last year, but when we went to arm the motors, they wouldn’t spin, and QGroundControl does not give an error code. Based on previous threads, I believe the issue is our FC to ESC wiring. I che… --- ## [Replacement LiPo options](https://forum.theavr.org/t/replacement-lipo-options/722)
**Author:** [@Jonah](https://forum.theavr.org/u/Jonah)\ **Replies:** 7\ **Last updated:** [October 7, 2024, 10:48pm UTC](https://forum.theavr.org/t/replacement-lipo-options/722 "2024-10-07T22:48:11Z")
Hi! My team has been using the 2022 kit to prep for the 2023 competition. One of our batteries looks to be beyond saving though, and we’re looking to get a replacement. Are we past the warranty period on the kit? C… --- ## [Replacement Pi Camera Tab](https://forum.theavr.org/t/replacement-pi-camera-tab/907)
**Author:** [@nhopkins](https://forum.theavr.org/u/nhopkins)\ **Replies:** 8\ **Last updated:** [October 4, 2024, 6:01pm UTC](https://forum.theavr.org/t/replacement-pi-camera-tab/907 "2024-10-04T18:01:33Z")
We had a student break the tabs to the Camera connector. Does anyone know where to get a replacement tab? --- ## [Weak motors not spinning correctly](https://forum.theavr.org/t/weak-motors-not-spinning-correctly/910)
**Author:** [@salwxk](https://forum.theavr.org/u/salwxk)\ **Replies:** 6\ **Last updated:** [October 4, 2024, 2:01pm UTC](https://forum.theavr.org/t/weak-motors-not-spinning-correctly/910 "2024-10-04T14:01:42Z")
Hello. We are experiencing a problem in which the motors spin normally and on high speed (according to our control) when tested on QGround Control. However, when we try to test flight with the actual controller, two of t… --- ## [Voltage Output on the AVR Drone](https://forum.theavr.org/t/voltage-output-on-the-avr-drone/912)
**Author:** [@williang](https://forum.theavr.org/u/williang)\ **Replies:** 1\ **Last updated:** [September 27, 2024, 2:12pm UTC](https://forum.theavr.org/t/voltage-output-on-the-avr-drone/912 "2024-09-27T14:12:16Z")
Does anyone know the voltage output of whatever modulates the power for the outputs like the servos and such? --- ## [AVR replacement part sourcing](https://forum.theavr.org/t/avr-replacement-part-sourcing/869)
**Author:** [@Tig](https://forum.theavr.org/u/Tig)\ **Replies:** 1\ **Last updated:** [August 22, 2024, 4:43pm UTC](https://forum.theavr.org/t/avr-replacement-part-sourcing/869 "2024-08-22T16:43:30Z")
Hello again! We’re getting rolling for the 24 season, but we’re having some trouble sourcing replacement parts for our AVR. We’ve diagnosed that our motor ESC is burnt, so we need to source a new one. Unfortunately, goo… --- ## [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… --- ## [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 --- ## [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… --- ## [Possible hardware GPS problem](https://forum.theavr.org/t/possible-hardware-gps-problem/740)
**Author:** [@null\_ham](https://forum.theavr.org/u/null_ham)\ **Replies:** 1\ **Last updated:** [November 9, 2023, 12:33am UTC](https://forum.theavr.org/t/possible-hardware-gps-problem/740 "2023-11-09T00:33:17Z")
Hey there, I’m trying to control my AVR drone using QGroundControl, but it keeps saying “No GPS Lock For Vehicle,” and on the VMC python script, it keeps throwing this error: fusion\_1 | 2023-11-08 21:09:55.264 | DEBU… --- ## [Our motors aren't functioning properly](https://forum.theavr.org/t/our-motors-arent-functioning-properly/729)
**Author:** [@Nwinners](https://forum.theavr.org/u/Nwinners)\ **Replies:** 0\ **Last updated:** [November 6, 2023, 8:45pm UTC](https://forum.theavr.org/t/our-motors-arent-functioning-properly/729 "2023-11-06T20:45:17Z")
Two motors on our drone arent operating at optimal speeds, and power surges on tge drone will make one of the two faulty motors run slowly, then surge and switch to the opposite motor. This problem only occurs when using… --- ## [AVR Drone drifting](https://forum.theavr.org/t/avr-drone-drifting/707)
**Author:** [@SizzlinSeal](https://forum.theavr.org/u/SizzlinSeal)\ **Replies:** 3\ **Last updated:** [October 31, 2023, 9:35pm UTC](https://forum.theavr.org/t/avr-drone-drifting/707 "2023-10-31T21:35:35Z")
Hello everyone We’ve recently finished checkpoint 3 in the AVR drone assembly. However, our AVR drone drifts significantly. Unlike the tello, which stays rock solid in the same place in manual control, the AVR drone wil… --- ## [Tello Stabilizing](https://forum.theavr.org/t/tello-stabilizing/683)
**Author:** [@Jonah](https://forum.theavr.org/u/Jonah)\ **Replies:** 6\ **Last updated:** [October 27, 2023, 12:39am UTC](https://forum.theavr.org/t/tello-stabilizing/683 "2023-10-27T00:39:38Z")
Hi! My team has had some issues with getting the tello to fly in a straight line. No matter which sensors we use to correct it, it varies by about ± 20% of the distance travelled, which is more than enough to overshoot… --- ## [Propellors of Drone Fly Off](https://forum.theavr.org/t/propellors-of-drone-fly-off/654)
**Author:** [@Danny](https://forum.theavr.org/u/Danny)\ **Replies:** 5\ **Last updated:** [October 25, 2023, 5:26pm UTC](https://forum.theavr.org/t/propellors-of-drone-fly-off/654 "2023-10-25T17:26:27Z")
When test flying the drone and disengaging afterwards, the propellors of the drone fly off of the AVR Drone. All four propellors are set on the right positions and drone assembly is completed. Below is a link to our vid… --- ## [Motors wont spin individually](https://forum.theavr.org/t/motors-wont-spin-individually/680)
**Author:** [@GymLeaderBrock](https://forum.theavr.org/u/GymLeaderBrock)\ **Replies:** 2\ **Last updated:** [October 24, 2023, 9:00pm UTC](https://forum.theavr.org/t/motors-wont-spin-individually/680 "2023-10-24T21:00:56Z")
In Q ground control when we test each motor individually motor 1 and 2 spin at the same time. We have checked the wiring to the motors and they look correct. So we were wonderings if we could have some suggestions on wha… --- ## [3D Printing Issue](https://forum.theavr.org/t/3d-printing-issue/670)
**Author:** [@dstarnes](https://forum.theavr.org/u/dstarnes)\ **Replies:** 5\ **Last updated:** [October 22, 2023, 12:21am UTC](https://forum.theavr.org/t/3d-printing-issue/670 "2023-10-22T00:21:08Z")
Greetings, I am having several issues with 3D printing parts. None of the 3D parts given splice and print to the correct scale. For example, the instructions for the Fire Escape Platform state to change the units from … --- ## [Jetson setup issue](https://forum.theavr.org/t/jetson-setup-issue/668)
**Author:** [@MDRobinson](https://forum.theavr.org/u/MDRobinson)\ **Replies:** 1\ **Last updated:** [October 19, 2023, 10:45pm UTC](https://forum.theavr.org/t/jetson-setup-issue/668 "2023-10-19T22:45:01Z")
We’re a new team and this is our first competition. When setting up our Jetson, we had two set of cable to connect to the WiFi adapter card. One set the pens are too large, but they have a female connector that connects … --- ## [Macbook dont use usb](https://forum.theavr.org/t/macbook-dont-use-usb/617)
**Author:** [@ab11369](https://forum.theavr.org/u/ab11369)\ **Replies:** 2\ **Last updated:** [October 8, 2023, 4:04pm UTC](https://forum.theavr.org/t/macbook-dont-use-usb/617 "2023-10-08T16:04:10Z")
My school uses the Macbook air. Is there an adapter we can use to link the computer to the drone. Macbook air does not use an usb. --- ## [Prop guards vibrating](https://forum.theavr.org/t/prop-guards-vibrating/608)
**Author:** [@dwburns](https://forum.theavr.org/u/dwburns)\ **Replies:** 2\ **Last updated:** [October 5, 2023, 1:02am UTC](https://forum.theavr.org/t/prop-guards-vibrating/608 "2023-10-05T01:02:17Z")
Whenever I did my second flight test, my prop guards started vibrating as shown in the gif. This did not happen on our first flight test only a few days before. Is anyone else having this problem or know how to fix it? … --- ## [ZED Mini Camera Issues](https://forum.theavr.org/t/zed-mini-camera-issues/598)
**Author:** [@HPT1-Row\_Dyer](https://forum.theavr.org/u/HPT1-Row_Dyer)\ **Replies:** 3\ **Last updated:** [September 25, 2023, 11:37pm UTC](https://forum.theavr.org/t/zed-mini-camera-issues/598 "2023-09-25T23:37:11Z")
Hi there! Up until recently, our ZED Mini Camera has been working flawlessly (2022 kit), however as of late, the LED no longer lights up, and it is not detected during VMC startup. I have access to both a different cabl… --- ## [VMC Jetson Wifi Cable Attachment](https://forum.theavr.org/t/vmc-jetson-wifi-cable-attachment/585)
**Author:** [@GymLeaderBrock](https://forum.theavr.org/u/GymLeaderBrock)\ **Replies:** 1\ **Last updated:** [September 18, 2023, 5:05pm UTC](https://forum.theavr.org/t/vmc-jetson-wifi-cable-attachment/585 "2023-09-18T17:05:33Z")
We’re having trouble attaching the UFL to SMA cable onto the Wifi card for our Jetson. It seems as if the cable is incompatible to the wifi card. What should we do? --- ## [Grinding noise coming from one motor](https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543)
**Author:** [@emoons](https://forum.theavr.org/u/emoons)\ **Replies:** 1\ **Last updated:** [August 29, 2023, 9:38pm UTC](https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543 "2023-08-29T21:38:11Z")
The students are running the drone motors, and one of them is making a grinding noise. We swapped the motor out with one from last year, and it is doing the same thing. What could be the issue? --- ## [Can you rebuild the 2021 UAV to fit the 2022 UAV?](https://forum.theavr.org/t/can-you-rebuild-the-2021-uav-to-fit-the-2022-uav/540)
**Author:** [@williang](https://forum.theavr.org/u/williang)\ **Replies:** 2\ **Last updated:** [August 28, 2023, 9:41pm UTC](https://forum.theavr.org/t/can-you-rebuild-the-2021-uav-to-fit-the-2022-uav/540 "2023-08-28T21:41:21Z")
We are from one of the early teams that competed in the 2021 game, and we still have that drone fully assembled. We wanted to know if we could find a list of the parts from the 2021 drone so that we could compare that a… --- ## [Motor output calibration](https://forum.theavr.org/t/motor-output-calibration/520)
**Author:** [@aceleski](https://forum.theavr.org/u/aceleski)\ **Replies:** 2\ **Last updated:** [August 14, 2023, 6:27pm UTC](https://forum.theavr.org/t/motor-output-calibration/520 "2023-08-14T18:27:19Z")
Hello, our team is having some challenges getting the motor outputs balanced. When attempting to take off the rear motor are moving faster than the front causing the drone to tip forward/flip. The team updated firmware… --- ## [ESC not functioning](https://forum.theavr.org/t/esc-not-functioning/517)
**Author:** [@aceleski](https://forum.theavr.org/u/aceleski)\ **Replies:** 4\ **Last updated:** [August 11, 2023, 7:11pm UTC](https://forum.theavr.org/t/esc-not-functioning/517 "2023-08-11T19:11:28Z")
Our ESC is not working and here is what we know about it: Our ESC arrived loose in a box. We installed it, we completed a series of diagnostics and it does not work. Our sister team received an ESC that was sealed in a… --- ## [Prop Guard files](https://forum.theavr.org/t/prop-guard-files/388)
**Author:** [@Jackson](https://forum.theavr.org/u/Jackson)\ **Replies:** 2\ **Last updated:** [November 10, 2022, 4:22pm UTC](https://forum.theavr.org/t/prop-guard-files/388 "2022-11-10T16:22:15Z")
Can anyone provide the files for the prop guards? I say that @tghelmbrecht asked for them on October 5th but no one responded. I would prefer them in a cad format, preferably AutoCAD if available. Also, is there anything… [Next page](https://forum.theavr.org/c/technical-support/avr-drone-hardware/9.md?page=1)