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TELLO drone use with high school students

Satorah

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I have a set of 10 TELLO Edu drones to fly with a class of 10 students. We use them about 1 term every year and this is our third year using them and have been experience the following issues:

- students use their iPad to connect and take off but the drone is not responding to any movement instructions or the drone takes forever to respond to the instruction to move forward.
- the drone batteries are very warm after not doing much - I asked the students to calibrate the IMU and some of the batteries heated up a lot just by doing that
- wifi interference message on the ipad for some of the students

Any advice would be much appreciated.

Thank you in advance
 
Using TELLO Edu drones with high school students can be a fantastic educational tool, but it sounds like you're experiencing some technical challenges. Here are some steps and advice to help address these issues:

1. Drone Not Responding to Movement Instructions or Slow Response​

Possible Causes:
  • Wi-Fi Interference: If multiple drones are being used simultaneously, they may be causing interference with each other.
  • Firmware Issues: The drone or the iPad app may need updates.
  • Overheating Batteries: Warm batteries can impact performance.
Solutions:
  • Wi-Fi Channels: Ensure each drone is connected to a different Wi-Fi channel if possible. You can manually set the Wi-Fi channel in the Tello app settings.
  • Update Firmware and App: Ensure all drones and the controlling apps on the iPads are updated to the latest firmware and software versions.
  • Reset Drones: Try resetting the drones to factory settings to clear any software glitches.

2. Drone Batteries Heating Up​

Possible Causes:
  • Overuse: Extended use without breaks can cause batteries to overheat.
  • Calibrating IMU: This process can be demanding on the battery.
Solutions:
  • Cool Down Periods: Ensure drones and batteries have adequate cool down periods between uses.
  • Battery Maintenance: Check if the batteries are old or damaged and replace them if necessary. Store batteries in a cool, dry place when not in use.
  • Calibration: Calibrate the IMU only when necessary, and allow the drone to cool down before and after the process.

3. Wi-Fi Interference​

Possible Causes:
  • Multiple Devices: Multiple drones and iPads using the same Wi-Fi frequency can cause interference.
  • Environment: Other Wi-Fi networks or electronic devices in the area can also cause interference.
Solutions:
  • Dedicated Network: If possible, set up a dedicated Wi-Fi network for the drones and iPads to minimize interference.
  • Wi-Fi Extenders: Use Wi-Fi extenders to strengthen the signal and reduce interference.
  • Environment Check: Ensure the classroom or flying area has minimal other electronic interference. Conduct a Wi-Fi scan to identify the least crowded channels.

General Tips:​

  1. Pre-Flight Checks: Conduct a thorough pre-flight check, including checking battery levels, calibrating sensors, and ensuring firmware is up to date.
  2. Structured Flying Sessions: Divide students into smaller groups and have them fly at different times to reduce simultaneous drone activity.
  3. Training: Provide students with proper training on how to handle and troubleshoot the drones, including recognizing signs of interference and overheating.
  4. Technical Support: Contact Tello or DJI support for persistent issues. They may provide specific troubleshooting steps or software updates to resolve the problems.
Implementing these steps should help mitigate the issues you're facing with the TELLO Edu drones and provide a smoother experience for both you and your students. If problems persist, consider reaching out to the drone manufacturer for more specific support.
 
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