Hello,

Make sure you have the correct Tools selections under the Tools/ tab of the Arduino IDE: https://learn.tinycircuits.com/Help/Upload_Arduino_Programs/#robotzero

The board power switch must also be toggled to ON.

If neither of those are the case, you can put the RobotZero into bootloader mode and then select the bootloader port and go from there. You may need to try it a few times before it works. Check the notes section for how to use bootloader mode: https://learn.tinycircuits.com/Wirelings/RobotZero_Tutorial/#notes

Best of luck! Let me know how it goes.

Maybe I'm confused.

This is for the Car project as a part of the Wirelings kickstarter project.

Should I choose robotzero or wirelingzero?

Also, why does my board identify as a Tinyscreen+

I can upload the Blink example and the Led blinks but I still get a failed upload message.

You should definitely be selecting RobotZero for the RobotZero processor, otherwise, your programs will not work as expected or even at all.

The TinyScreen+, TinyZero, WirelingZero, and RobotZero all share the same processor (the SAMD21) so they all show up as "TinyScreen+" in the Arduino IDE due to the way the board package is written. This is a little confusing, but it means that your computer is correctly recognizing your RobotZero, so that's good!

It's strange that you're getting a failure even though the programs are uploading. I'm using Arduino IDE version 1.8.8 and I don't have that problem, so maybe there are some bugs in the most recent version? It's a hassle to undownload the IDE and redownload a different version since you have to reinstall any boards packages, but that could help if you continue getting these mixed messages.

Before trying that, I would recommend turning your computer off and back on, and using bootloader on the RobotZero to get it out of this behavior.

I hope that helps!

I have moved on to a Windows 10 PC so I will not continue to try and solve this issue.