Hi @javiste! We just finished our call, but wanted to list this out here for others as well.

All the things you listed are definitely good things to look out for and implement. One more thing that will cause the drone to drift is if it hasn't been calibrated for the environment. Lighting and the pattern of the floor, if very different from where it's been calibrated, can cause the drone to drift, especially if you flew the drone elsewhere.

Here's the tutorial about recalibration. Here are the steps, just to clarify.

Insert the battery Hold the drone updside down Press and hold the side button until the drone's arms blink Immediately place the drone on the ground and stand clear for it to take off and run the calibration

One thing to note, make sure the surface is not too dark or not too glossy/reflective. The optical flow sensor works best on a carpeted surface with a distinct pattern. This will help the calibration process.

We would say expecting a margin of error of about a 2 ft x 2ft square is reasonable, or about 60 x 60 cm. And definitely take into account cumulative error. So because it's using dead reckoning (i.e. doesn't have sensors than can tell where it is positioned in space relative to the room), the more it veers off or changes course during a flight sequence, the larger the error will be further along the sequence.

So we tend to keep our obstacles relatively simple, like a take off pad, 3 hoops, and a landing pad. For more complex courses, we'd recommend mixing portions that are remote controlled, and portions that are autonomous.

Hopefully that's helpful!

@GSCC Calendar invite sent, you should've received an e-mail. You can click the URL in the calendar invite to join the Google Hangouts link.

Great to hear! Let me know if you're having any other trouble.

Got it! I see what you mean, "sequencing" can definitely be confusing in this context. I found the lesson, and adjusted the wording so it's clearer. I also called out checking out the video to get a visual idea of what Upload Mode looks like.

Thanks so much!

Hello @rcron2 the code

#include <CoDrone.h> void setup() { CoDrone.begin(115200); CoDrone.pair(); CoDrone.takeoff(); //goes up and hovers for 3 seconds CoDrone.hover(2); //hovers for 2 seconds CoDrone.land(); //lands the CoDrone } void loop(){ byte bt8 = digitalRead(18); byte bt4 = digitalRead(14); byte bt1 = digitalRead(11); if(bt1 && bt4 && !bt8){ CoDrone.emergencyStop(); } }

has a killswitch inside the loop, since the setup code is doing one line after another it will take time to get to the inside of the loop. The killswitch is there for once the program is over if the CoDrone is still flying you can make it land. You can also double-click the BLE modules black button to kill the drone mid-program. Let me know if you have any other questions.

@elisaheinrich Ah, gotcha! Were you able to update the CoDrone's firmware to 50.18? That's step #3 in the Updating CoDrone.

Also, did you try using the "zero-out" blocks I sent in the previous message? Try putting those blocks together, then clicking those as they're linked together a few times so it "zeroes out" the variables.

As I mentioned, updating the firmware to 50.18 will also work, and it's the more permanent solution.

Also, can you confirm that calibration has been working? As in, it takes off, hovers for 5 seconds, and lands?

Give it a shot, and let me know if it helps!

By the way, @robolink_whoseop mentioned that v17 might actually be better to use, because the pairing algorithm may be a bit faster. So if you encounter issues with pairing time, update to v17 by selecting it from the dropdown.

Hello @nag98k! Welcome to the forum. The upload mode seems set up properly on the remote. You're getting a message at the end Using Port : COM1 which means you're most likely using the wrong Port number. Usually COM 1 is reserved for other devices.

Looks like your board manager is correct (Rokit-SmartInventor-mega32_v2), so also make sure you go to Tools > Port, and see if a port appears when you plug in the remote in upload mode. That's the port you'll want to have selected. You'll want to look for COM7 or COM9 or something along those lines. The COM number depends on your hardware.

Give that a shot, and let us know if it helps! 👍

Hello @IFacademy! We've been trying to troubleshoot that issue for a while now, and we're going to be disabling the updating feature within the Chrome app until it's figured out.

In the meantime, you can update the CoDrone firmware to 50.18 by using the Petrone mobile app, following these steps: https://basecamp.robolink.com/cwists/preview/630x

The app is here for iOS, and here for Android.

Hello @Sarah-renfro I am sorry to hear the CoDrone is not behaving correctly, are you available for a video call this week?

@efkpall
Hi

Please i am opening the video support u sent me.. it is very urgent

thanks

@johnnycurry Hello it appears that the remote may not have been in upload mode. Please check out this video it goes over how to upload a program to the remote. There are some key steps that need to be followed exactly in order for the remote to be in upload mode.

The timeout error usually indicates the remote is not in upload mode. (Blinking blue led on the right side & BLE module not flashing red)

The other possible error is selecting the computers internal Bluetooth port and not the /dev/cu..SLAB_USBtoUART

Please let me know if you have any other questions.

Hello @anonymous Those characters you are viewing are the Bluetooth messages being sent to the CoDrone. The BLE module uses the serial port to either talk to the CoDrone or the computer, it cannot speak to both at the same time. Let me know if you have any other questions.

@JWI Let me know if you have any other problems. I can set a video call if necessary.

@Artesis I will be awaiting your response 😃

Hi @klaus! I know it's been a while, but I just wanted to check in to make sure we could troubleshoot the issue you were seeing. We can replace defective parts if needed. Thanks!

Hello @chappy1558 would you be available for a video call this week? Also can you send me your shipping address to arnold@robolink.com thank you!

@Shelby97 here is another video I made let me know if it helps out. If you have any other questions or would like to set up a video call please let me know.