at+ commands respond with error

microic
Posts: 1
Joined: Wed Oct 04, 2017 7:06 am

at+ commands respond with error

Postby microic » Wed Oct 04, 2017 2:38 pm

Hi to all,

I purchase 20 x ESP8266-12 from e-bay. I connect two of them for test and notice that both can communicate on 115200 baud, AT command respond with OK, but on all AT+ command respond with error.
At the end I can not use AT command with both unit. Firmware installed is AI Thinker 0.9.2
I will appreciate any help.

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pratik
Posts: 467
Joined: Wed Jun 29, 2016 7:17 pm
Location: India
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Re: at+ commands respond with error

Postby pratik » Fri Oct 06, 2017 7:37 pm

The firmware is REALLY REALLY outdated. You need to have at least v.1.5.4, which is stable. Please check out the latest firmware at
https://github.com/espressif/ESP8266_NONOS_SDK/bin
To flash the firmware to ESP8266, you will find many tutorials online.
Regards,
Pratik Panda
Website: http://www.PratikPanda.com

Custom firmware, Knowledge base and freelancing (ESP8266/ESP32):
http://www.iot-bits.com

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