Unable to Flash esp32 after Enabling Deep Sleep

Smooth
Posts: 1
Joined: Mon Nov 19, 2018 9:49 pm

Unable to Flash esp32 after Enabling Deep Sleep

Postby Smooth » Mon Nov 19, 2018 10:00 pm

Hi,

I recently bought TTGO T-Beam, which is a loraWAN development board with an esp32 mcu.
I have been using the Arduino ide to program it and has been successful on that part until today. After uploading a sketch that implemented deep sleep I am now unable to upload any further sketches. The board immediately goes into deep sleep after boot and prevents me to connect to it. I can see that windows detect it for a second before it disappears again. How can I prevent the mcu from loading the program so that I can flash it again?

Thanks for all help!

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martinayotte
Posts: 141
Joined: Fri Nov 13, 2015 4:27 pm

Re: Unable to Flash esp32 after Enabling Deep Sleep

Postby martinayotte » Tue Nov 20, 2018 7:54 pm

Did you tried with GPIO0 grounded ?

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