Here we can all chat about fixing the AT+ command structure and the associated responses.

User avatar
By Mohamed Khaled
#66707 hello,
each once i try to send any AT commands to nodemcu i see this message
stdin:1: unexpected symbol near 'char(22)'
stdin:1: unexpected symbol near 'char(3)'

i use Putty to send commands and i also used esplorer
can any one help me to write AT commands in wright method
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By biswajit007
#87341 I am not an expert, but what I can say is that NodeMCU comes with Lua based firmware. So, to issue AT command you need to first flash it into AT firmware. AT firmware is available in internet.
Then, you can use Arduino IDE software and its serial monitor to issue AT command easily.