Page 1 of 2

Espresso Lite V2 espcomm error

PostPosted: Mon May 22, 2017 12:48 pm
by ssloo77
When i verify the sketch it show no error but during uploading it show this error .

warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed

Re: Espresso Lite V2 espcomm error

PostPosted: Mon May 22, 2017 9:56 pm
by bengchet
Hi,

May I know which USB-Serial Adapter you are using? UC00A or UC00C? Which system you are running on your PC? Windows, Mac, Linux?

You got this error when you upload the sketch for first time?

Re: Espresso Lite V2 espcomm error

PostPosted: Mon May 29, 2017 7:18 pm
by ssloo77
Hi,
I am using UCOOC and windows PC. I solved the problem after change usb cable and restart the arduino software. Thanks for your reply.

Re: Espresso Lite V2 espcomm error

PostPosted: Thu Jun 01, 2017 10:48 am
by Idris
Hi ssloo77,

Glad to hear that. :)

Thanks.

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 1:40 pm
by Sukuri
Hi there,

I just bought Espresso Lite V2.0 with UC00A R3, after install all libraries using Arduino IDE v1.8.1, then connect the usb, I found the COM Port is not detected.

Can I know what is actually the problem?

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 2:42 pm
by bengchet
Hi,

Com port not detected, normally comes from few situation.

1) UC00A R3 driver is not installed in PC
2) USB cable used to connect UC00A to PC

You can try check if the driver is ady being installed. When driver is installed successfully and connect USB cable to UC00A, you should be able to see COM port ( that time Espresso Lite not needed to attach yet)

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 2:44 pm
by Idris
Hi Sukuri,

Could you disconnect all, and just connect between your PC/laptop and UC00A? If still can't detect try with other PC/laptop.

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 2:45 pm
by Sukuri
bengchet WROTE:Hi,

Com port not detected, normally comes from few situation.

1) UC00A R3 driver is not installed in PC
2) USB cable used to connect UC00A to PC

You can try check if the driver is ady being installed. When driver is installed successfully and connect USB cable to UC00A, you should be able to see COM port ( that time Espresso Lite not needed to attach yet)



Thanks for that.

I think the driver is the problem, can I know where can I get the driver to re-install?

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 2:47 pm
by Sukuri
Idris WROTE:Hi Sukuri,

Could you disconnect all, and just connect between your PC/laptop and UC00A? If still can't detect try with other PC/laptop.


I've tried connect with laptop only, but still COM port not detected. I don't think my usb port is the problem cause it works with arduino.

Re: Espresso Lite V2 espcomm error

PostPosted: Mon Nov 13, 2017 3:14 pm
by Idris
Hi, did you try with bengchet suggestion? Try to re-install the driver.

Could you printscreen your device manager?