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Espcomm_send_command:didn ' t receive command response | Espcomm_send_command (flash_download_begin) failed |arduino Wemos D1 cannot be uploaded

Source: Internet
Author: User
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Espcomm_send_command:didn ' t receive command Responseespcomm_send_command (flash_download_begin) failed I now have two boards that have this problem, and I've been trying to solve this problem for a long time. There is no similar problem at all in domestic articles. Constantly try online solutions, mainly because their English level is too poor to view foreign documents, quite labored. 4 o'clock in the morning I get up and start to make, finally in my constant try, I finally solved the problem, really ecstatic. My two boards follow the same approach, all restored, and the following are my solutions.
  1. D3 Connection Gnd When USB is disconnected, and D8 connection GND
  2. Plug in the USB, open the Arduino ID to perform the upload operation, when we can find the Arduino led flashing, then the development Board is back to normal.

Espcomm_send_command:didn ' t receive command response | Espcomm_send_command (flash_download_begin) failed |arduino Wemos D1 cannot be uploaded

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