# Latest **URL:** https://community.droneblocks.io/latest.md [Latest](https://community.droneblocks.io/latest.md) · [Categories](https://community.droneblocks.io/categories.md) --- ## [Welcome to The DroneBlocks Community!](https://community.droneblocks.io/t/welcome-to-the-droneblocks-community/7)
**Author:** [@system](https://community.droneblocks.io/u/system)\ **Replies:** 2\ **Last updated:** [February 1, 2024, 6:13pm UTC](https://community.droneblocks.io/t/welcome-to-the-droneblocks-community/7 "2024-02-01T18:13:42Z")
The DroneBlocks discussion community is focused on fostering conversations around drone programming and bringing drones into the classroom. With a focus on STEM/STEAM we believe in not only teaching drone programming, bu… --- ## [Non-official Battery](https://community.droneblocks.io/t/non-official-battery/1230)
**Author:** [@dhoustonsmstech](https://community.droneblocks.io/u/dhoustonsmstech)\ **Replies:** 2\ **Last updated:** [December 26, 2025, 7:41pm UTC](https://community.droneblocks.io/t/non-official-battery/1230 "2025-12-26T19:41:54Z")
I have a set of 20 of the Tello Drones that I purchased from Pitsco. They worked great at the start of the unit but now I have random drones that are now displaying a non-official battery error message on the tello app … --- ## [Multi-Drone simulation with QGroundControl Fails](https://community.droneblocks.io/t/multi-drone-simulation-with-qgroundcontrol-fails/1519)
**Author:** [@youyas](https://community.droneblocks.io/u/youyas)\ **Replies:** 7\ **Last updated:** [October 11, 2025, 7:28pm UTC](https://community.droneblocks.io/t/multi-drone-simulation-with-qgroundcontrol-fails/1519 "2025-10-11T19:28:51Z")
Hi everyone. I am currently working on PX4 Offboard Navigation with Python and ROS2, using Ubuntu 22.04 and QGround Control. Successfully spawned three drones but inside QGroundControl, nothing occurs when trying to lau… --- ## [Change the initial location of Drone](https://community.droneblocks.io/t/change-the-initial-location-of-drone/1518)
**Author:** [@youyas](https://community.droneblocks.io/u/youyas)\ **Replies:** 3\ **Last updated:** [September 17, 2025, 5:37pm UTC](https://community.droneblocks.io/t/change-the-initial-location-of-drone/1518 "2025-09-17T17:37:22Z")
Hi everyone. I am currently working on PX4 Offboard Navigation with Python and ROS2, using Ubuntu 22.04 and QGround Control. I would like to change the initial location of the drone, from current location to another are… --- ## [Hello from Australia - Foiling Yacht help needed](https://community.droneblocks.io/t/hello-from-australia-foiling-yacht-help-needed/1520)
**Author:** [@DaveAC75](https://community.droneblocks.io/u/DaveAC75)\ **Replies:** 0\ **Last updated:** [September 15, 2025, 10:08am UTC](https://community.droneblocks.io/t/hello-from-australia-foiling-yacht-help-needed/1520 "2025-09-15T10:08:12Z")
Hi, I am in the process of designing and building a Model America’s Cup Foiling Yacht and am looking at using a Flight Control Unit to control the “Flight of the yacht”. At the moment I am considering a SpeedyBee F405 … --- ## [PX4 "Motor Position Coordinate System"](https://community.droneblocks.io/t/px4-motor-position-coordinate-system/1516)
**Author:** [@johnwhear](https://community.droneblocks.io/u/johnwhear)\ **Replies:** 6\ **Last updated:** [September 7, 2025, 3:43pm UTC](https://community.droneblocks.io/t/px4-motor-position-coordinate-system/1516 "2025-09-07T15:43:04Z")
PX4 “Motor Position Coordinate System” Before I purchase a drone development kit, I want to make sure I understand PX4 “Motor Position Coordinate System” I want the ability to move the center of mass and update the fli… --- ## [Warning: Unknown flight Mode "Return" (default:unknown:0)](https://community.droneblocks.io/t/warning-unknown-flight-mode-return-default0/1517)
**Author:** [@youyas](https://community.droneblocks.io/u/youyas)\ **Replies:** 1\ **Last updated:** [September 6, 2025, 3:40pm UTC](https://community.droneblocks.io/t/warning-unknown-flight-mode-return-default0/1517 "2025-09-06T15:40:05Z")
Hi everyone. I am currently working on PX4 Offboard Navigation with Python and ROS2, using Ubuntu 22.04 and QGround Control. On my first simulation when I try to return to Launch point I get the following error: Warning… --- ## [MAVSDK vs Mavlink](https://community.droneblocks.io/t/mavsdk-vs-mavlink/1495)
**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\ **Replies:** 2\ **Last updated:** [June 6, 2025, 8:43pm UTC](https://community.droneblocks.io/t/mavsdk-vs-mavlink/1495 "2025-06-06T20:43:09Z")
I don’t see MAVSDK library in dexi os. Has anyone used MAVSDK vs Mavlink? Is there any future plan to add MAVSDK to dexi os? If I wanted to try MAVSDK, with Mavlink already part of dexi os, it looks like I only need to… --- ## [DEXI OS boot issue](https://community.droneblocks.io/t/dexi-os-boot-issue/1493)
**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\ **Replies:** 4\ **Last updated:** [June 2, 2025, 8:36pm UTC](https://community.droneblocks.io/t/dexi-os-boot-issue/1493 "2025-06-02T20:36:36Z")
Flashed 2 different sd cards with v0.9 apply power get solid green LED on frame (with RC on), flight controller have blinking periodic blue LED, red LED solid on, and after couple minutes LED ring on drone lights up whit… --- ## [Tello EDU Error Code 29](https://community.droneblocks.io/t/tello-edu-error-code-29/1490)
**Author:** [@cotem](https://community.droneblocks.io/u/cotem)\ **Replies:** 4\ **Last updated:** [June 2, 2025, 12:26pm UTC](https://community.droneblocks.io/t/tello-edu-error-code-29/1490 "2025-06-02T12:26:17Z")
Both the drone and app are up to date. When turned on, and attempting to pair, the light remains red (never gets to flashing yellow. Yet, drone connect to app. I begin calibration. Yellow light starts flashing. Calibr… --- ## [Where are the photos stored and how to get them off a Windows machine](https://community.droneblocks.io/t/where-are-the-photos-stored-and-how-to-get-them-off-a-windows-machine/789)
**Author:** [@bova\_m](https://community.droneblocks.io/u/bova_m)\ **Replies:** 5\ **Last updated:** [April 29, 2025, 4:54pm UTC](https://community.droneblocks.io/t/where-are-the-photos-stored-and-how-to-get-them-off-a-windows-machine/789 "2025-04-29T16:54:38Z")
I’m using the Windows DroneBlocks App… My question is: When I click on the Take Photo icon or run the blocks, it says “File Saved Successfully” but I can’t see any photos or videos on my computer. Are they in a specifi… --- ## [Motor problem/ replacement with a new motor](https://community.droneblocks.io/t/motor-problem-replacement-with-a-new-motor/1128)
**Author:** [@zeuvs](https://community.droneblocks.io/u/zeuvs)\ **Replies:** 2\ **Last updated:** [April 25, 2025, 11:54pm UTC](https://community.droneblocks.io/t/motor-problem-replacement-with-a-new-motor/1128 "2025-04-25T23:54:14Z")
We need help, we replaced a faulty motor in a unitree go1 robot, but it doesn’t see the new motor, and if necessary, how can I set the motor ID? The arrow in the picture shows the motor which was replaced. --- ## [DEXI 5 Initialization Sounds?](https://community.droneblocks.io/t/dexi-5-initialization-sounds/1481)
**Author:** [@DaleBurbank](https://community.droneblocks.io/u/DaleBurbank)\ **Replies:** 5\ **Last updated:** [April 23, 2025, 6:07pm UTC](https://community.droneblocks.io/t/dexi-5-initialization-sounds/1481 "2025-04-23T18:07:41Z")
After assembly, I powered up the DEXI, but get a sequence of sounds and the motors twitch slightly. Video File Am I not sure if there is an error or I am not allowing it to initialize long enough (maybe 4-5 minutes). I… --- ## [DEXI 5 Kit Chargers?](https://community.droneblocks.io/t/dexi-5-kit-chargers/1480)
**Author:** [@DaleBurbank](https://community.droneblocks.io/u/DaleBurbank)\ **Replies:** 2\ **Last updated:** [April 19, 2025, 5:08pm UTC](https://community.droneblocks.io/t/dexi-5-kit-chargers/1480 "2025-04-19T17:08:31Z")
Hi, my school purchases five Dexi 5 kits. As I am gearing up for this unit, the battery charging unit refers to a specific charger which I did not get. Was there supposed to be one with the kits or package or am I just s… --- ## [DEXI 5 audible repeating buzz/alarm when power drone](https://community.droneblocks.io/t/dexi-5-audible-repeating-buzz-alarm-when-power-drone/1473)
**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\ **Replies:** 1\ **Last updated:** [April 9, 2025, 2:27am UTC](https://community.droneblocks.io/t/dexi-5-audible-repeating-buzz-alarm-when-power-drone/1473 "2025-04-09T02:27:15Z")
Tried to fly and drone would not arm. Investigating later, saw qgc message ‘velocity estimate error’ keeping it from flying. Checked for loose connectors (none). Then I was looking around in qgc for clues to error, and s… --- ## [Will DEXI OS run on COTS Raspberry Pi4B?](https://community.droneblocks.io/t/will-dexi-os-run-on-cots-raspberry-pi4b/1471)
**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\ **Replies:** 1\ **Last updated:** [April 3, 2025, 1:56am UTC](https://community.droneblocks.io/t/will-dexi-os-run-on-cots-raspberry-pi4b/1471 "2025-04-03T01:56:27Z")
Using both CM4 and standalone Pi4B to develop CM4 code --- ## [GPS receiver for DEXI 5](https://community.droneblocks.io/t/gps-receiver-for-dexi-5/1470)
**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\ **Replies:** 1\ **Last updated:** [April 3, 2025, 1:49am UTC](https://community.droneblocks.io/t/gps-receiver-for-dexi-5/1470 "2025-04-03T01:49:26Z")
What GPS receivers have been used on DEXI 5, and what mounting locations have been used? Thinking the Holybro M10 ($45) is good low cost std precision receiver. For $75 there is the Ark SAM GPS. --- ## [Why the wifi of the RMTT not showing?](https://community.droneblocks.io/t/why-the-wifi-of-the-rmtt-not-showing/1454)
**Author:** [@abilhasanali](https://community.droneblocks.io/u/abilhasanali)\ **Replies:** 1\ **Last updated:** [March 12, 2025, 2:24pm UTC](https://community.droneblocks.io/t/why-the-wifi-of-the-rmtt-not-showing/1454 "2025-03-12T14:24:56Z")
After I checklist the droneblocks and ffmpeg and click oke and go to internet access, the name connection of RMTT is not showing --- ## [DroneBlocks white screen on iPad](https://community.droneblocks.io/t/droneblocks-white-screen-on-ipad/1448)
**Author:** [@bmilliron](https://community.droneblocks.io/u/bmilliron)\ **Replies:** 3\ **Last updated:** [February 27, 2025, 7:20pm UTC](https://community.droneblocks.io/t/droneblocks-white-screen-on-ipad/1448 "2025-02-27T19:20:23Z")
When students open the DroneBloacks app in the iPad, there is a white screen with no blocks. We have powered off the device, made sure it is connected to wifi, everything that is supposed to be done before connecting the… --- ## [Go1 development with ROS2 (C++ and Python)](https://community.droneblocks.io/t/go1-development-with-ros2-c-and-python/679)
**Author:** [@Marnonel6](https://community.droneblocks.io/u/Marnonel6)\ **Replies:** 13\ **Last updated:** [February 23, 2025, 11:42am UTC](https://community.droneblocks.io/t/go1-development-with-ros2-c-and-python/679 "2025-02-23T11:42:45Z")
Go1 development with ROS2. --- ## [Examples using Lists](https://community.droneblocks.io/t/examples-using-lists/1436)
**Author:** [@duncan7](https://community.droneblocks.io/u/duncan7)\ **Replies:** 0\ **Last updated:** [January 30, 2025, 5:51pm UTC](https://community.droneblocks.io/t/examples-using-lists/1436 "2025-01-30T17:51:59Z")
I’d like to experiment with using an array of coordinates for the solar panels in the Mars mission. Lists seem like one way to do this- is there any documentation around the usage of these blocks? --- ## [Using curves in block coding](https://community.droneblocks.io/t/using-curves-in-block-coding/191)
**Author:** [@SethL](https://community.droneblocks.io/u/SethL)\ **Replies:** 10\ **Last updated:** [November 5, 2024, 1:09am UTC](https://community.droneblocks.io/t/using-curves-in-block-coding/191 "2024-11-05T01:09:27Z")
I have been teaching my students the basics right now using the block coding, but can’t seem to get the curve function to work correctly unless you leave z at 0. Using the simulator I see that if I change z to 1 while m… --- ## [Droneblocks on iPadOS](https://community.droneblocks.io/t/droneblocks-on-ipados/1405)
**Author:** [@mdavol1](https://community.droneblocks.io/u/mdavol1)\ **Replies:** 1\ **Last updated:** [November 1, 2024, 3:19pm UTC](https://community.droneblocks.io/t/droneblocks-on-ipados/1405 "2024-11-01T15:19:01Z")
Good Evening, My name is Mike and I’m brand new to drone blocks! I’m wondering if I am missing a step here to download the Droneblocks app to the iPad. Whenever I search it says something like “This app is currentl… --- ## [Not launching Loop or Functions?](https://community.droneblocks.io/t/not-launching-loop-or-functions/1399)
**Author:** [@iliew](https://community.droneblocks.io/u/iliew)\ **Replies:** 0\ **Last updated:** [October 16, 2024, 4:40pm UTC](https://community.droneblocks.io/t/not-launching-loop-or-functions/1399 "2024-10-16T16:40:18Z")
We are trying the launch this mission. This is from one of the lessons in the Drone Block curriculum. It works in the simulator but doesn’t work when using the app. I’m not sure what the issue(s) may be. I checked the fi… --- ## [Propeller Guard suggestions for Crazyflie?](https://community.droneblocks.io/t/propeller-guard-suggestions-for-crazyflie/1387)
**Author:** [@jkitterman](https://community.droneblocks.io/u/jkitterman)\ **Replies:** 2\ **Last updated:** [October 14, 2024, 9:25pm UTC](https://community.droneblocks.io/t/propeller-guard-suggestions-for-crazyflie/1387 "2024-10-14T21:25:52Z")
Hello, I am just getting started with Droneblovcks and I’d like to add guards before students use the devices. I’ve printed and installed the guard posted by Dennis Baldwin: Bitcraze Crazyflie 2.1 Propeller Guards by de… --- ## [Unitree Go2 Support problems](https://community.droneblocks.io/t/unitree-go2-support-problems/1385)
**Author:** [@Wintherslife](https://community.droneblocks.io/u/Wintherslife)\ **Replies:** 2\ **Last updated:** [October 7, 2024, 3:58pm UTC](https://community.droneblocks.io/t/unitree-go2-support-problems/1385 "2024-10-07T15:58:20Z")
Hi Have had my Unitree Go2 for about 9 months and without bigger issues worked fine untill software update, it failed, several times, and it after several days they say there is a fault on the rear left legg engine… str… --- ## [CrazyFlie not taking off](https://community.droneblocks.io/t/crazyflie-not-taking-off/1326)
**Author:** [@jeffepps](https://community.droneblocks.io/u/jeffepps)\ **Replies:** 8\ **Last updated:** [September 30, 2024, 5:17pm UTC](https://community.droneblocks.io/t/crazyflie-not-taking-off/1326 "2024-09-30T17:17:50Z")
Hello, Ive assembled the drone and tested it with the IOS app. The app is working with no problem. However when I pair the drone with the DroneBlocks Web App, it does not take off. It cycles through the code and states.… --- ## [CrazyFlie Arduino controller](https://community.droneblocks.io/t/crazyflie-arduino-controller/1368)
**Author:** [@jjs357](https://community.droneblocks.io/u/jjs357)\ **Replies:** 0\ **Last updated:** [August 28, 2024, 3:58pm UTC](https://community.droneblocks.io/t/crazyflie-arduino-controller/1368 "2024-08-28T15:58:23Z")
Thought the community might be interested in see the following: CrazyFlie Controller Demo Can supply more information if there is any interest. --- ## [Issues deploying MSI via Group Policy](https://community.droneblocks.io/t/issues-deploying-msi-via-group-policy/1359)
**Author:** [@RWilliams](https://community.droneblocks.io/u/RWilliams)\ **Replies:** 1\ **Last updated:** [August 26, 2024, 12:13pm UTC](https://community.droneblocks.io/t/issues-deploying-msi-via-group-policy/1359 "2024-08-26T12:13:04Z")
Hullo, I have been trying to install droneblocks using group policy, and the MSI installer from here: DroneBlocks App - Google Drive The app is scheduled to install, but seems to fail during the installation. The event… --- ## [Go1 Edu Connecting Nano 1 to External Internet](https://community.droneblocks.io/t/go1-edu-connecting-nano-1-to-external-internet/1025)
**Author:** [@jlaut1096](https://community.droneblocks.io/u/jlaut1096)\ **Replies:** 7\ **Last updated:** [August 21, 2024, 8:00am UTC](https://community.droneblocks.io/t/go1-edu-connecting-nano-1-to-external-internet/1025 "2024-08-21T08:00:24Z")
I am trying to install some voice recognition packages onto the Head Nvidia Jetson Nano, but there doesn’t seem to be an intuitive way to connect it to any sort of internet. It’s the only board of the 4 that doesn’t have… [Next page](https://community.droneblocks.io/latest.md?page=1)