My WiFi module can't find any kind of APs

mvtdesign
Posts: 3
Joined: Thu Dec 22, 2016 3:47 pm

My WiFi module can't find any kind of APs

Postby mvtdesign » Thu Dec 22, 2016 4:34 pm

Hi, I have made 3 ESP8266 module, Then I flashed the modules with AT command, the latest revision, and now all of my modules aren't able to find APs.

The first one, worked well, but after a while, baud rate of the module increased to 250000 bps during boot (I had done a lot of tests to find the baudrate), and I couldn't execute any kind of AT commands on it (or at least I couldn't find the right baud rate).

The second one worked well, but after a while, the module was not able to find access point. even when I set the module as an AP, I can't see the SSID of the module on my phone or laptop. I can execute any kind of AT commands without any kind of error, but I cant find even the closest APs.

And the Third one worked only just once and then, it was like the second one and I couldn't find APs with the module. When I execute "AT+CWLAP\r\n" the response is "AT+CWLAP\r\nOK".

Also I have tried to flash modules a lot, I can upload AT command firmware without any error on all of the modules.The crystals that I have used one the modules are 26MHz and 24MHz. and the flashes are 32Mbit. the boot revision of AT commands are 1.2 and 1.5

What is the problem?

Thank you

mvtdesign
Posts: 3
Joined: Thu Dec 22, 2016 3:47 pm

Re: My WiFi module can't find any kind of APs

Postby mvtdesign » Tue Jan 03, 2017 8:14 pm

The problem of the second one and the third one is now solved, because I've replaced their Crystal with 2 new 26.000 MHz 10 ppm.

But still the first one doesn't work.

Any idea?

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