Hi, I started spending time on ESP wifi module quite a few days ago, and I acknowledged many problems. Currently i had a hard time uploading a sketch onto the ESP via arduino uno ( i do not own USB-UART converter besides that). After i "successfully" uploaded a classic "blink" program, I have lost the ability to communicate with ESP via serial monitor, not to mention using any AT commands. The thing is altho i succesfully uploaded a program, it did not work ( the LED did not blink). I decided to flash the newest firmware once more in hope that maybe that would solve the problem. At first i thought it actually worked since the blue LED started to blink. It took me some time to understand that it is blinking way faster than it should in the "blink" program, and something is propably not working well. I was unable to ever upload any new program to it again. I also tried flashing it once again but it ended with errors every time. This is an error i got when i tried to flash:
....._____....._____....._____....._____....._____....._____....._____....._____....._____....._____[2019-03-04 03:30:59,186][ESP8266Loader_spi][espDownloader.py][line:351][ERROR]: Chip sync error: Failed to connect to ESP8266: Timed out waiting for packet header [2019-03-04 03:30:59,187][ESP8266Loader_spi][espDownloader.py][line:439][ERROR]: ESP8266 Chip sync error esp_sync_blocking.
and this is an error i got when i tried to upload a sketch:
Arduino: 1.8.8 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Disabled, ck, 26 MHz, 40MHz, DOUT (compatible), 512K (no SPIFFS), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200" Sketch uses 258620 bytes (51%) of program storage space. Maximum is 499696 bytes. Global variables use 26696 bytes (32%) of dynamic memory, leaving 55224 bytes for local variables. Maximum is 81920 bytes. warning: espcomm_sync failed error: espcomm_open failed error: espcomm_upload_mem failed error: espcomm_upload_mem failed This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
Please let me know if there is some solution to this. Thank You in advance :)