I can't connect my arduino to cayenne

Bugs / Issues Resolved
1

Hello,
I want to connect my Arduino UNO to Cayenne via USB but it doesn’t connect and in serial monitor appears my token . I’m using linux with chrome.
If somebody can help me , please write here.

                                                                                  Regards,
                                                                            your Cayenne user
2

Hi @matei.tudose2005, welcome to the Cayenne Community. I’d be happy to help.

With the USB serial connection sketch, there is a script file that needs to be running per the commented section at the top of the sketch. Can you confirm that it’s running OK? I know on my Mac I had to run chmod +x cayenne-ser.sh to make it executable which wasn’t in that documentation.

3

No , it doesn’t worked . It said : chmod: cannot access ‘cayenne-ser.sh’: No such file or directory

4

Oh, sorry, first you need to find the directory where the script lives on Linux. I believe this is:

/usr/share/arduino/libraries/Cayenne/extras/scripts

but if I’m wrong I can fire up a Linux machine to check for sure. Once you’re in that directory, try running the command I gave above, then

./cayenne-ser.sh

5

Ok , i found it but what i must do? I don’t understand

6

No worries. The USB Serial connection is probably the trickiest compared to Ethernet/WiFi, there are a lot of little gotchas. In my experience it works great though once you have it running.

Here is what I would do:

  1. Open the Arduino IDE and connect your UNO via USB. Make sure that the Board and Port settings in the Tools menu are both set to ‘Genuino/Uno’ (generally the IDE does this automatically).

  2. Open the SerialUSBConnection sketch in the Arduino IDE from File>Examples>Cayenne>InternetConnections

  3. In the Cayenne web Dashboard, add a new Arduino device and proceed to the Step 3 page. Copy and paste the token into your SerialUSBConnection sketch in the IDE.

  4. Compile and upload the sketch your your UNO

  5. On your Linux machine, cd to /usr/share/arduino/libraries/Cayenne/extras/scripts

  6. enter ./cayenne-ser.sh to run the serial communication script.

If things are working ok, you should see output similar to this:

1028×151 36 KB

and of course the board will show as online in the Cayenne Dashboard.

If you run into an error, just paste or screenshot the output for me and I’m sure I can help you work through it. Once you have this working once it tends to be pretty easy to re-use over and over again.

2 Likes
7

Thanks a lot !!! I did it !

2 Likes
8

Awesome, glad to hear it. Have any exciting plans for your Arduino?

9

yes , great plans!