Hi,
I am using ESP8266_01 module connected to my Arduino UNO with these config:
TX->TX
RX->RX(with voltage divider)
VCC->3.3V
CH_PD->3.3V
GND->GND
and I upload the example BareMinimum to my ESP8266.
Board: Generic ESP8266
Port: COM3
I have this error.
error: espcomm_open failed
error: espcomm_upload_mem failed
What does it mean?
That's not how you program an ESP8266. You need to do some research first, there are countless guides online that have the correct connections and explain how to set the boot mode for programming.
This setup works.
TX->TX
RX->RX
GPIO0->GND
CH_PD->3.3V
VCC->3.3V
GND->GND
then I GND the RESET of Arduino UNO.
The code flushed but it doesn't have any response when I put AT commands on the serial monitor.
You didn't read the link I posted, did you?
The program/firmware doesn't run if the processor boots in programming mode.
And on top of that, it won't respond to AT commands if you overwrite the AT firmware with an empty program.
What part of the tutorial are you saying about programming mode?
Chapters 2, 4 and 6.