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I wired ESP-05 to my usb-to-ttl as images below.

I connected it to USB #2 port, and my computer seems not knowing this. enter image description here

I also tried to send "AT+RST" through Realterm but, it didn't work neither.

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  • Can you try to describe what is happening and what the expected outcome of the action should be, maybe what you have tried. From what i can see everything looks fine, the RX/TX connection is where most people do wrong, but it looks like it is connected properly. – Magic-Mouse Mar 26 '15 at 7:54
  • your problem is not with the ESP, but with the usb-ttl converter. You need to install manually the PL2303 driver. – Omer Mar 26 '15 at 11:58

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