ESP8266 not powering up

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Darl
 
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ESP8266 not powering up

Post by Darl »

Hi,

I bought three of ESP8266 Wi-Fi Module ( https://www.adafruit.com/product/2282 ) on the 20th of January order ID 686038-0179184327 On powering them with the Pin-out provided on the product page, none of the modules powered up

Attached here is picture of my wiring with LD33CV regulator, input voltage to the LD33CV is 5.1V I have checked the output of the LD33CV with a digital multimeter and confirmed it 3.3V
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adafruit_support_rick
 
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Re: ESP8266 not powering up

Post by adafruit_support_rick »

Please post some clear close-up pictures showing your soldering.

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Darl
 
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Re: ESP8266 not powering up

Post by Darl »

I Hope this is clear enough?
DSCF0117.JPG
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basically this how I connected it:

A 5V 1A Wall Wart Adapter to the DC Barrel Jack

from jack +v to the input of the LD33CV (pin 3) and -v to GND (pin 1) of LD33CV
a 10uF from LD33CV GND to Vin and another 10uF from GND to Vout

I tested Vout and it 3.09V
ESP8266_V091.png
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Then using the attached Pin-out image I connected Vout to VCC and GND to GND of ESP8266
I also connected the CH_PD of the module to VCC

After all the connection the power LED of the module never came up

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adafruit_support_mike
 
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Re: ESP8266 not powering up

Post by adafruit_support_mike »

Your power connections look right..

Just to double-check, test the voltage between the solder joints at the VCC and GND pins on the breakout. It might be something as simple as a weak connection or a broken jumper.

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Darl
 
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Re: ESP8266 not powering up

Post by Darl »

Seriously!! checked the voltage on the solder VCC and GND joint and it's 0V - Tested the Female-to-Male jumper wires for continuity and they were broken!!
used the few good jumper wires to wire the module, two powered and one did not. the two that powered won't respond to any AT command though I got the

Code: Select all

[Vendor:www.ai-thinker.com Version20.9.2.4]

ready


when I power-up, so I believe if can get my hands on some good jumper cable or solder the module to a board it should respond to AT commands

So as it stands, I have one bad ESP8266 and a bunch of bad Female-to-Male jumper cable which am hoping to get a replacement or refund

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adafruit_support_mike
 
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Re: ESP8266 not powering up

Post by adafruit_support_mike »

Send a note to [email protected] with a link to this thread and the folks there will get you a replacement for the one EPS8266 that doesn't respond. If you got the jumpers from us, they'll get you a replacement on those too.

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Darl
 
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Re: ESP8266 not powering up

Post by Darl »

Ok noted!

But the two is still not responding to any AT command

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adafruit_support_mike
 
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Re: ESP8266 not powering up

Post by adafruit_support_mike »

That's probably a protocol issue.

Check your serial connection to make sure you're sending a proper <CR><LF> end-of-line symbol. The device won't respond until it sees that.

If you're using `screen`, try hitting CTRL-J after hitting return.

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Darl
 
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Re: ESP8266 not powering up

Post by Darl »

I don't think it's a Protocol issue, One is working perfectly OK now ( connected the GND of the FTDI Cable to GND of the LD33CV ) however the other one is not. responding with ERROR or Wrong Syntax and sometimes ( 3 in 10 ) response to AT+RST command.

How can I Re-Flash the module and Where can I get the firmware Adafruit used

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adafruit_support_mike
 
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Re: ESP8266 not powering up

Post by adafruit_support_mike »

Yeah, you do need a common GND reference to make the signals work.

WRT the firmware, we ship them as we receive them. For documentation and software support we're letting http://www.esp8266.com/ take the lead. They have people learning and posting new information faster than we can match.

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TheExpertNoob
 
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Re: ESP8266 not powering up

Post by TheExpertNoob »

adafruit_support_mike wrote:Yeah, you do need a common GND reference to make the signals work.

WRT the firmware, we ship them as we receive them. For documentation and software support we're letting http://www.esp8266.com/ take the lead. They have people learning and posting new information faster than we can match.
Where are you getting the boards from? I have managed to find an AT version of v0.9.2.2(vendor:www.ai-thinker.com) firmware but it dosen't support DNS, The 0.9.2.4 did.

Anyways, I was trying out the IoT and NODEMCU firmware and wanted to go back.

EDIT: I think I found them including newer firmware with "SmartLink" Im going to check it out.
https://drive.google.com/folderview?id= ... ptbzg#list

Also, I almost forgot, when you reflash, some settings that keep with the ESP8266 like AT+CWMODE and AT+ CIPMUX will need to be reset.

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Re: ESP8266 not powering up

Post by adafruit_support_mike »

Our supplier contracts forbid discussing sources.

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