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ramiss / arduino_DJI_03_RC_ARM

Automatically Arm a DJI 03 Air unit with an Arduino
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Compilation Error #15

Closed arubano closed 1 year ago

arubano commented 1 year ago

I'm a little new to this but followed the instructions carefully. I setup my Samd21 XIAO in IDE, it's recognized and I tested it. I downloaded all of the files in this repository, opened them in the latest version of IDE and get an error.

I attached a txt file of the output errors.

Errors.txt

There are many errors, I'm sure I'm doing something wrong and I'm not sure what I'm looking at. Most of them are "stray" errors and telling me I can't perform certain actions at this time.

example. error: stray '\342' in program You can’t perform that action at this time. error: stray '\200' in program You can’t perform that action at this time. error: stray '\231' in program You can’t perform that action at this time. error: expected unqualified-id before '<' token <!DOCTYPE html>

ramiss commented 1 year ago

I'm suspecting you downloaded the webpage instead of the code files. The way you download code in GitHub is in the screenshot below.

Once you unzip, place every file (except for the readme.md file) in a folder called "arduino_DJI_03_RC_ARM" (I'll fix the necessity for this step in the next update).

image

arubano commented 1 year ago

Yes! lol I did a right click/save link as for each file because I didn't see a download button.

So I downloaded the zip, created the correct folder name, put the other files in it. Opened the sketch and tried to compile it but I get an error about serialusb. All of the other errors are gone. I appreciate your response, your time and and any help you're willing to give me on this.

C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino: In function 'void setup()': C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino:81:5: error: 'SerialUSB' was not declared in this scope SerialUSB.begin(115200); ^~~~~ C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino:81:5: note: suggested alternative: 'Serial' SerialUSB.begin(115200); ^~~~~ Serial C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino: In function 'void debugPrint()': C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino:334:3: error: 'SerialUSB' was not declared in this scope SerialUSB.println("**"); ^~~~~ C:\Users\antho\OneDrive\Desktop\Vers2\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM-main\arduino_DJI_03_RC_ARM\arduino_DJI_03_RC_ARM.ino:334:3: note: suggested alternative: 'Serial' SerialUSB.println("**"); ^~~~~ Serial

exit status 1

Compilation error: 'SerialUSB' was not declared in this scope

ramiss commented 1 year ago

Either you aren't using the latest version of Arduino IDE, or you aren't setting the correct board, or some of your libraries are out of date.

ramiss commented 1 year ago

image

arubano commented 1 year ago

Okay. I will go through it all again. I'm using the Seeeduino SAMD21 XIAO https://www.amazon.com/dp/B0BQ39R32D

Arduino IDE is 2.1.1

In board manager I added the Seeed SAMD Boards from this link https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json and it's on version 1.8.4

Board is set as Seeeduino XIAO on the correct port.

I wrote the blink test to it and changed the timings a few times on the blink to confirm it was writing and accepting changes.

I will go back through now and confirm all is correct.

arubano commented 1 year ago

Mine looks a little different.

image

ramiss commented 1 year ago

Hmm. Did you follow the directions on this page (near the bottom) https://wiki.seeedstudio.com/Seeeduino-XIAO/

ramiss commented 1 year ago

The board looks correct.

arubano commented 1 year ago

Hmm. Did you follow the directions on this page (near the bottom) https://wiki.seeedstudio.com/Seeeduino-XIAO/

Yes, that is the page and the instructions I used to set it up.

arubano commented 1 year ago

I downgraded from the 1.8.4 update in the board manager to 1.7.9 for this board and it compiled/uploaded successfully.

ramiss commented 1 year ago

Interesting, thanks for the info and glad you got it working.

arubano commented 1 year ago

An interesting power note. I expected gray/white from the air unit to just have data. This is in an r/c truck. I have it wired per your diagram.

The Air Unit, Air Unit Fan and Seeeduino all get power from their own second battery in the truck. I have the power for the Seeeduino run through a mini buck converter and set for 5.00v exactly. Air Unit white is going to 6, gray is going to 7, brown is going to ground (shared with power ground). Power/Ground from buck converter are going to 12/13 with 5v on the 5v pin.

Before I even powered the seeeduino on, I powered on the air unit and the seeeduino came on by itself and worked. I tested with a volt meter, the power pin had 2.2 volts on it. I'd imagine the seeeduino or the air unit will get damaged working too long like this, so I connected power to it and had 5v where I was supposed to.. But it does appear work without applying any power to it.

Is there typically an indication from the Air Unit or in the goggles when it's entered high power transmit mode? Everything appears to look the same, range seems to be a little better, It still drops signal and video a couple hundred feet away if I go behind an obstacle or building. I also lose bandwidth pretty quickly too. A couple hundred feed out and I'm under 25 and I'm around 0-5 with 1 bar of signal at about half mile. I'm just trying to make sure I've done everything right. I can also see battery voltage in the goggles with the seeeduino connected and I don't remember seeing battery voltage before.

Thanks again for your help and responding today, I do appreciate it.

ramiss commented 1 year ago

Yeah, I'm also aware that the DJI UART alone will power the XIAO, but I agree its risky to rely on it. If you are seeing anywhere near 25mbps or higher then it is armed. You can also set it to auto record and that would give you indication.

arubano commented 1 year ago

There are 3 modes from what I understand. There's low power. Then low power disabled from the goggles which increases bandwidth but keeps RF power low. Then full power bandwidth and full power RF with the arduino.

When I turn off low power in the goggles without the arduino I get 25-50mbps driving around no problem, but the range is only 300-400 feet. With the arduino in there, it doesn't seem much better.

I also turned on auto-recording which I assume is "Auto-Record on Takeoff" which does nothing. It doesn't start auto recording.

ramiss commented 1 year ago

If it isn't auto recording then you aren't arming. Are you sure RX and TX are appropriately reversed?

arubano commented 1 year ago

I'm not sure if they're reversed or not. I have white (3rd wire) going to 6, gray (4th wire) going to 7 and the brown (5th wire) going to ground. Exactly as it is here.

image

ramiss commented 1 year ago

If it's exact wiring then it should work. You didn't change the code, I assume?

arubano commented 1 year ago

I haven't. Aside from downgrading the board manager in IDE, everything was done how it was laid out in your instructions.

ramiss commented 1 year ago

What is your startup process? The goggles need to be powered up before the air unit and arduino

ramiss commented 1 year ago

You can uncomment the debug definition on line 34 in the main sketch, re-upload then then open the serial monitor to watch the logs on your pc as you power up.

arubano commented 1 year ago

I power up goggles, then power up camera. Camera, fan and arduino are all on the same connector and connect to their own battery. The arduino starts as soon as I power up the air unit, even if I disconnect power to it so I’m not sure if the power up timing matters or not for that.

On Sat, Aug 19, 2023 at 15:50, ramiss @.***(mailto:On Sat, Aug 19, 2023 at 15:50, ramiss < wrote:

What is your startup process? The goggles need to be powered up before the air unit and arduino

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: @.***>

ramiss commented 1 year ago

The Arduino waits for activity from the air unit to indicate it is booted up. It then waits 3 seconds and sends the arm command. I recommend doing the debug per above to see what is going on.

TodWulff commented 1 year ago

I too was getting the serialusb error:

My fix:

Not only does it jump out of low power mode at boot, but also auto starts a recording. I've some tuning to do with voltage display on a 3S1P setup but otherwise it is a blessing. Kudos and Thank You!

Also, for those who have and can use a current meter. In low power mode, the O3 draws on the order of 650-800mA. When it does go into high-power mode, O3 current jumps up to 1.2-1.7A (on a fully charged 3S1P lipo (12.6VDC)). This could be used as another means to validate Xiao is working like it's designed.