Issues with combining Flow Deck, A.I. Deck and Multi Ranger

[marescanog]

Hello,

I am currently working on a project for object detection while the drone is in flight. Right now I am just testing the hardware to see if they could all work together. I first tested all the decks separately before combining. I was able to successfully perform the getting started with the A.I. deck demo (only the a.i deck only attached to crazyflie) and the getting started with the stem ranging bundle demo (both multi ranger and flow deck attached to crazyflie).

However, when I attach all three (Multi Ranger Deck at the top of crazyflie, the A.I. deck at the middle while the Flow deck is at the bottom.) both the A.I. deck and the Flow Deck do not work. First I tried to run the script with crazyradio 2.0 attached (same script for the stem ranging bundle demo https://www.bitcraze.io/documentation/tutorials/getting-started-with-stem-ranging-bundle/) But with the A.I. deck attached, the script seems to initialize but it does not do anything. It just freezes and I cannot even do a keyboard interrupt on the terminal to exit the program. However, if I take off the A.I. deck and run the script again with only the multi ranger and the flow deck, the script runs and works as expected.

Additionally, when I try to run the script for the A.I. deck with both the flow deck and the multi ranger deck attached, I cannot connect over wifi. But, if I do manage connect over wifi, the open cv streaming window does not pop up. However when i detach the flow deck and just have the A.I. deck and the multi ranger and run the script in the demo https://www.bitcraze.io/documentation/tutorials/getting-started-with-aideck/, I am able to connect to crazy flie over wifi and stream the images accordingly.

I am not sure how to get all 3 going at the same time. My goal is to train an object detection A.I. model, run it on crazyflie and have both the camera and multi ranger guide the crayflie for autonomous flight. This is why I need to have the 3 decks.

To illustrate my goal further so there's a clearer picture -this is the eventual end goal I aim to achieve: imagine a stage with different 3 items (bottle, box, ball), when prompted to look for the ball, crazyflie uses the ai model to identify the ball, then approach the ball without bumping into it (hence the need for the multi ranger deck)

I am eventually going to write a script for flight and object detection logic But Right now, I just need help on how to get all 3 decks working while all of them are attached simultaneously. It seems that there's some sort of conflict that I am not aware of.

• Can both the crazyradio 2.0 and wifi be used simultaneously or will they confict with one another?
• Is the placement of the decks correct? See image (Multi ranger at the top, A.I. Deck at the middle and Flow deck at the bottom)
  
  
  

Additional details:

• The firmware for all 3 decks are updated to the latest release
• Battery is fully charged
• drone weight is balanced as much as possible
• extra long header pins used
• Connecting to the cfclient, below are the messages of the console with all 3 decks attached at the same time:
  
  

Thank you, I look forward to the guidance and deeply appreciate it

[gemenerik]

I'm sorry to hear you're experiencing issues when mounting the Multi Ranger Deck, AI Deck, and Flow Deck simultaneously.

Your mounting configuration appears correct; ensure that the pins are properly connected. Since each deck initializes correctly when tested individually, the mounting is likely not the issue.

I replicated your setup and successfully ran the STEM example. Please verify that you are using the correct URI. I also ran the WiFi streamer successfully following these instructions. Could you try again following those?

Be aware that the radio can interfere with Wi-Fi signals. If you encounter connectivity issues, experimenting with different radio channels may help resolve the problem.