Im tryna get my Sunfounder sloth robot test code to work, but it keeps coming up with some form of upload error. I've had access denied for COM4 port, semaphore timeout expired on COM3, and now that I turned bluetooth off and on again, I don't have any ports. Any fix?
Hello tryna.
Would you copy and paste that error from the IDE, here? Be sure to click the < CODE > button to nicely format the error report.
Also... check your
IDE >> TOOLS >> PORT >> (your port)IDE >> TOOLS >> BOARD >> (your board)(is your board the Arduino UNO?)
Check Windows device manager what happens when you connect / disconnect the board. Anything with yellow triangles.
I suspect that the Nano is a clone. If so you probably have to install the drivers for the serial-to-usb chip on the Nano; if the serial-to-usb converter is a CH340, you can install the driver from How to Install CH340 Drivers - SparkFun Learn.
Note
Do not use the latest version from the WCH page in linked the above SparkFun article. There have been plenty of problem reported recently regarding the CH340 on Windows systems and it's not sure if it's the driver or operating system specific (most issues are reported for Win11 if not mistaken) or a specific batch of (fake?) CH340 chips.
Is the Nano a copy?
If so it might be using a CH340 driver. What worked for me was doing a rollback of the device drivers from device manager.
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