Issues with Serial Communication between Arduino Uno & ESP8266

Using Arduino Networking, Protocols, and Devices
1

Hello!

I recently purchased an ESP8266, and decided to try to connect it to my Arduino and begin working with it.

I was following this tutorial:

http://www.teomaragakis.com/hardware/electronics/how-to-connect-an-esp8266-to-an-arduino-uno/comment-page-1/#comments

I did the wiring, everything seemed fine however, when I would type in the "AT" command, ESP8266 would not respond at all. I tried using different Baud Rates, and switched to the "Both NL and CR" option. But no luck whatsoever.

Also, I noticed a strange thing, whenever I would send in a command from the Serial Monitor, the "RX" LED would light up on my Arduino for a split second. Shouldn't the "TX" LED be lighting up?

I am very new to programming as well as to the Arduino.
What could be I possibly be doing wrong?
Is my ESP8266 dead?

Thanks a ton!

2

read Arduino to ESP8266 By Serial Communication | Martyn Currey

A ESP module needs a 3.3V power supply. The one from the Arduino is generally insufficient.

3

I just realizes there are LEDs on the ESP8266, and none of them were glowing.
Well looks we have a power problem here!

(And I was wondering, what a stupid module it is, no LED's whatsoever lol)

Two possibilities here:

  1. Arduino fails to provide enough current and/or voltage
  2. Faulty ESP8266

I will post update soon.

4

McSuperbX1:
2) Faulty ESP8266

I have 7 of the ESP-01 purchased from different sellers on eBay.
Not one of them was faulty.

Usually operator error.